The 2000 Forest Research Laboratory Biennial Report N O I T HAL SALWASSER DIRECTOR ROGER ADMIRAL ASSISTANT DIRECTOR THOMAS MCLAIN DEPARTMENT HEAD, FOREST PRODUCTS W. THOMAS ADAMS DEPARTMENT HEAD, FOREST SCIENCE S T R A BART THIELGES ASSOCIATE DIRECTOR I STEVEN D. TESCH DEPARTMENT HEAD, FOREST ENGINEERING A D M I N JOHN WALSTAD DEPARTMENT HEAD, FOREST RESOURCES S T E N RESOURCES FOR RESEARCH ............................................. 56 T THE FRL—ENHANCING STEWARDSHIP ................................ 5 N FROM THE DIRECTOR ...................................................... 4 O RESEARCH EXPENDITURES BY FUNDING SOURCE ................... 57 FORESTRY-RELATED PUBLICATIONS ................................... 108 C FORESTRY PUBLICATIONS ................................................ 58 O E L B A FRL ADVISORY COMMITTEE .......................................... 120 T SHORT COURSES AND WORKSHOPS ............................... 117 F AUDIOVISUAL PROGRAMS ............................................. 114 R FROM THE DIRECTOR O WORKING TOWARD STEWARDSHIP: T THE FOREST RESEARCH LABORATORY WORKS FOR OREGON The Forest Research Laboratory at Oregon State C University has a long-standing tradition of research to support good forest stewardship. For 60 years, since it was E established by the Oregon State Legislature in 1941, the FRL has pursued a wide-ranging research program directed at overcoming the challenges that stand in the way of taking good care of Oregon’s forests. R In the 1940s and 1950s, as Oregon moved out of the dry Depression years, a big challenge was the presence of vast acres of burned-over forest land. One of the FRL’s earli- I est projects was to provide research and technological support for the reforestation of the Tillamook Burn. The success of that reforestation is evident in the vigorous young forest now growing across the rugged Coast Range landscape. D The target of our research has broadened over the years. Forestry problems have grown in complexity. The focus has shifted from the productivity of a single, big resource—the timber—to an enhanced understanding of the relationships among the many resources of Oregon’s forests. The challenges are many. How shall we thin insect-damaged trees to reduce fuels in E dry east-side forests? How shall we grow forests in a way that helps them soak up excess carbon dioxide from the atmosphere? How do we know how our management activities will affect the forest decades into the future? How can we use our wood resource in the H most efficient, least wasteful way? How can we reach out to sometimes-warring constituents and help them reach agreement on tough forest-management questions? As you will see from the profiles in this book, our researchers are pursuing answers to T these questions and more. Their work helps Oregon’s forest landowners, policymakers, and citizens work toward sustainable stewardship of our forests now and in the future. The research summaries in this report tell of some of the exciting things our scientists are doing. I hope you’ll enjoy reading them, and I hope you’ll also take a look at the long list of research publications. The depth and breadth of this published research is a testi- M mony to the rigor and relevance of FRL science. If you’d like your own copy of this report, I’d be delighted to send you one. Please get in touch with the Forestry Communications Group, (541) 737-4271, or visit our Web site O at www://cof.orst.edu/cof/pubs/home/structur/indorpub.htm. Many of the research papers themselves also are available through our searchable database. The challenges to good forest stewardship are many. But the FRL’s commitment to F R solving problems and serving Oregon through sound forestry research remains the same. Hal Salwasser Director, Forest Research Laboratory THE FRL— ENHANCING STEWARDSHIP The word “stewardship” is commonly proposed as a model of the human relationship with nature. The word is often invoked to mark out a middle ground between the extremes of unchecked exploitation and unheeding preservation. It is a large middle ground, and people sometimes have different ideas about where its boundaries lie. Still, researchers at the OSU College of Forestry and the Forest Research Laboratory (FRL) think stewardship is a principle worth upholding. This report showcases the ongoing contributions to stewardship of more than a dozen scientists at the College of Forestry and the FRL, the College’s state-mandated research arm. Before we tell their stories, it might be helpful to look back at what “stewardship” originally meant. The dictionary traces the word to medieval times in England. “Steward” derives from the Old English words “stig,” meaning enclosure or hall (our word “sty,” as in “pigsty,” comes from the same root), and “weard,” meaning someone who guards or looks after. The word originated during a time when most people in Europe lived and toiled on large estates, under the protection and care (not always of the highest quality) of the feudal lords who owned and managed these estates. The chief steward of such an estate would be a trusted servant of the lord, one who had the responsibility for the smooth running of the entire estate. Good stewardship required knowledge, first of all. The steward had to know how to grow rye, how to breed sheep, how to store turnips, how to keep the books. It also required a sense of responsibility. A steward was responsible not only for the continued care of the land, not only for the productivity of crops and livestock, but also for the well being of the people whose livelihood depended on the estate’s continued prosperity. Thus the principle of stewardship implies both knowledge and responsibility. It’s a principle that is even more important today. We no longer live in medieval times. Our estate is the whole Earth, and that makes our stewardship responsibility a heavy one indeed. 5 Scientists of the FRL contribute in many ways to the knowledge that good stewardship demands. They also, in their work and in their lives, exemplify a keenly felt responsibility for taking care of the Earth’s resources. In this report you will read of the work of K. Norman Johnson, Pete Bettinger, John Sessions, and Michael Wing, whose detailed and layered mapping and modeling of Oregon’s forest lands makes it possible to take care of the forest resource today and long into the future, for the well being of our children and grandchildren. You will learn how John Garland’s experiments with synthetic-fiber rope and other harvesting innovations are taking care of workers by making the woods safer for those who harvest trees. You will read about the efforts of Charles Brunner and Jim Funck to improve the utilization of small logs, and Loren Kellogg’s work on efficient and environmentally benign harvesting of these logs. You’ll learn about Darrell Ross’s work on managing bark beetles with pheromones. All these researchers are helping owners take care of insect-damaged forests. You’ll read about John Simonsen’s and Phil Humphrey’s work in engineering wood into brand-new materials— helping safeguard the forest resource by enhancing the performance of wood and thereby stretching the wood supply. You’ll read about Barbara Gartner’s investigations into the cell-level processes of trees, which may lead to ways to cultivate wood with better structural properties and thus help improve performance and reduce waste. You’ll see how Bruce Shindler and John Bliss are, through their socialscience research, helping policymakers take care of those who own and work on the land, as well as those who are affected by how it is managed. You will learn now Mark Harmon and Jim Wilson are, in a diversity of research projects, helping citizens take care of the whole Earth by contributing to solutions for the problem of global warming. And you’ll meet Jim Boyle, whose work on planted forests makes a strong case that these forests are essential for global forest sustainability. 6 These scientists are all working toward the good stewardship of Oregon’s forest resource today, but that is only the beginning. We believe their ongoing work is crucial to the continued well being of our natural resources and our human resources, here and around the world, now and in the years to come. PUTTING THE PIECES TOGETHER “The strength of the CLAMS approach is that it enables people to see that the future they will experience will be the consequence of choices they make today.” F orests represent a complicated web of links among biophysical processes and human actions. Managers are increasingly trying to understand how their decisions will ripple across the landscape, and how they will influence the forest over time. Such understanding requires a detailed and deep set of data about a particular landscape—a richness of information that, before the advent K. Norman Johnson explains a CLAMS map. of satellite imaging and high-powered computers, was simply not available. Five years ago, a partnership between Oregon State University, the USDA Forest Service Pacific Northwest Research Station, and the Oregon Department of Forestry (ODF) was formed to launch CLAMS (Coastal Landscape Analysis and Modeling Study), an ambitious project to compile information about Coast Range forests into a deep, layered, and finely resolved database. The CLAMS database is nearing completion. Researchers are running the data through computer simulations to determine how various management strategies might play out in Coast Range watersheds over the next 100 years. The computer-simulated outcomes are shown in detailed (and beautiful) maps of how the landscape will appear at various points in the future— how much forest of differing ages there will be, and how its condition and distribution will affect wildlife habitat, recreational opportunities, and the economic well being of Coast Range communities. The CLAMS database, says K. Norman Johnson, is a powerful tool for showing policymakers and the public what the forests of the Coast Range might look like at various points in the future if certain management choices are set into motion today. 7 8 “These maps seem to draw people into the analysis,” says Johnson, professor in the Department of Forest Resources and a lead researcher with CLAMS. “People can picture themselves in the landscape and envision what the outcomes of various policies might be. That makes the maps a great tool for joint learning.” With its rugged topography, dynamic history of natural disturbance, diverse ownership patterns, and disparate effects of past land management, the Coast Range is about as varied as a landscape can be. “We’ve had some practice at projecting the outcomes of various management strategies for the whole landscape, but only in the aggregate,” says Johnson. “Now we have the capability of simulating the spatial distribution of these activities across the forested landscape, and we can project what our forests might look like in the future in the different watersheds, mountains, and valleys that make up the Coast Range.” CLAMS’s co-leaders are Johnson and Tom Spies, a research ecologist with the Pacific Northwest Research Station. Johnson and his Forest Resources colleagues Pete Bettinger, Becky Johnson, Jonathan Brooks, and Alissa Moses, and Forest Science colleagues Rob Pabst and Steve Garman, are the CLAMS team members from the College of Forestry. Forest Service partners include Gordon Reeves, Gordon Grant, Janet Ohmann, Kelly Burnett, Mike McGrath, David Boughton, and Mike Wimberly. Gary Lettman, an economist, and Andrew Herstrom, a GIS analyst, are team members from the Oregon Department of Forestry. Creating the database was a painstaking process. The Coast Range modeling area covers 7.7 million acres of ridges, slopes, hillsides, and valleys stretching from Astoria to Port Orford and from the ocean to the Willamette Valley margin. The researchers began by dividing the landscape into parcels averaging 25 acres in size. The parcels are not identical squares in a grid, however. They are delineated within each watershed according to the land’s contours, and their irregularity of size and shape captures more closely the similarities and differences of the land’s features. Using GIS and satellite imagery, Janet Ohmann and Matt Gregory (OSU) developed a vegetation map that Jonathan Brooks and Andrew Herstrom used to develop the parcel layer. They overlaid the parcel map and vegetation layer with boundaries representing ownership of Federal, State, forest industry, and nonindustrial private forest lands. Then the researchers made the resolution even finer. Pixels of 25 square meters—the smallest unit of resolution possible with satellite images—were grouped together according to shared characteristics, such as slope of the ground, distance from a stream, and cover of vegetation. These grouped patches range from a single pixel to several acres in size, but their average size is about two-thirds of an acre. The patches are the “basic simulation units,” or BSUs, of the CLAMS computer-simulation process. It is the changes in these BSUs that are tracked through the computer simulation. The researchers also entered information about how Coast Range forest lands had been managed in the past, and how owners and managers intend to manage it now and in the future. This information was developed from landowner surveys conducted by the Oregon Department of Forestry. To simulate various potential futures, Johnson, Bettinger, and their colleagues feed into the computer information associated with a variety of management scenarios. What are the management objectives of each owner class? What does it cost to do a precommercial thinning? A commercial thinning? A clearcut harvest? What price will the owner likely get for the logs? Which lands have been harvested recently, and so are not expected to be harvested again for a while? Which lands are withdrawn from harvest, or restricted in some way? Projecting changes in these attributes over time, the model produces a detailed report and a set of maps of how the landscape will change decade by decade. These maps show where the forests will lie on the ground, how old the trees will be, and how much timber the land will yield. The maps also facilitate an understanding of how wildlife habitat and recreational opportunities will be affected in different locations. The wildlife portion of the model includes information on the western bluebird, pileated woodpecker, marbled murrelet, spotted owl, and elk. One set of simulations shows what Coast Range forest cover looks like today and should look like in 50 and 100 years, if forest owners continue to manage their forests as they are managing today, or as they have indicated they intend to manage in the future. This simulation assumes that federal matrix lands (those available for harvest under the Northwest Forest Plan) will continue to be harvested at a rate of no more than 1 percent per year in each large watershed (5,000 to 50,000 acres) and that late-successional reserves will receive some selective thinning. The simulation assumes that State lands will be managed with thinning and clearcut harvests with the goal of achieving a full distribution of forest structures within each large watershed. It also assumes that industrial landowners will continue to harvest by clearcut and thinning methods to achieve an even flow of timber over time, with rotations averaging 50 years. 9 The maps show an increasing divergence between the forest condition on public and private land, with the recent policies on public land focusing on growing older, multi-structured forest, and those on private land focusing on growing and harvesting younger forest. “The strength of the CLAMS approach,” says Johnson “is that it enables people to see that the future Total Vegetation Cover <70% they will experience will be the consequence of choices Shadow they make today. It helps people see and think in wholeCloud Water landscape terms, and it gives them a common reference Non-forested point for talking through sometimes-conflicting viewOpen (0-40% vegetation cover) Semi-closed (41-70% vegetation cover) points. Most importantly, it engages the communities Regeneration harvest of Oregon—all of us—in envisioning our future.” Open (0-40% vegetation cover) Semi-closed (41-70% vegetation cover) Total Vegetation Cover >70% Broadleaf (>70% broadleaf) Mixed (>70% broadleaf) 0-25 cm conifer DBH 26-50 cm conifer DBH 51-75 cm conifer DBH >75 cm conifer DBH Conifer (>70% conifer) 0-25 cm conifer DBH 26-50 cm conifer DBH 51-75 cm conifer DBH >75 cm conifer DBH 10 2000 2050 2100 BUILDING A FOREST: LOOKING TWO HUNDRED YEARS AHEAD “Nobody assumes you’re seeing the future perfectly, but you can use the analysis to make a relative comparison among alternatives.” A tree planted today may take 100 years to grow to maturity. John Sessions, a professor in the Department of Forest Engineering, says, “Foresters routinely look 100 to 200 years into the future. Other businesses look 20 to 50 years ahead at most.” When the Oregon Department of Forestry wanted to analyze the long-term effects of their John Seessions looks into the future. draft management plan for the northwest Oregon State Forests—over 600,000 acres that includes the Tillamook and Clatsop State Forests—the agency asked Sessions to help. In the early to mid-twentieth century, much of northwest Oregon’s State forest lands, then privately owned, had been burned by huge wildfires or logged without replanting. Many acres of these lands had defaulted to Oregon counties for nonpayment of taxes. The counties agreed to let the Oregon Department of Forestry (ODF) reforest and manage the lands, and in return, the counties would receive most of the revenues when the trees were large enough to harvest. Starting in the 1950s, ODF, replanted and reseeded these forests and turned the burned or logged-over landscape into a growing forest. Today, 40- to 60-year-old, densely stocked stands of mostly Douglas-fir cover about 70 percent of northwestern Oregon State Forests. The remaining land is covered by forest stands of other ages. The Board of Forestry gave ODF the challenging task of developing a new management plan for these State Forests. To meet policy direction, ODF must manage the State Forests to provide habitat for threatened species such as the northern spotted owl, marbled murrelet, and several salmon species, as well as more than 100 other wildlife species.To provide a full 11 12 range of social and economic benefits, the agency also must produce timber from the forests and manage for recreation. Finally, the agency must manage the forests sustainably, so that the northwest Oregon State Forests will provide wildlife habitat, clean water, recreation, and timber over the decades and centuries to come. In partnership with the Oregon Department of Fish and Wildlife, ODF developed an integrated management approach to meet all these goals. Their approach is called structure-based management (SBM). The old timber management approach looked at trees mainly as a future supply of lumber. This planning team looked at the way trees build a forest. Trees give structure to a forest. The structure varies depending on the sizes, ages, and species of trees, the number of snags and fallen trees, and the types of shrubs and plants present. A healthy forest is a dynamic mosaic of structures. These structures and their changing patterns make a forest what it is. The planning team’s goal was to grow half of the northwestern State Forests into the two more-complex types of forest structures, known as “layered” and “older forest structure” types, as quickly as possible, in just a few decades. Would SBM work? The team turned to Sessions, who has developed several computer models that analyze the short- and long-term consequences of forest management actions. Sessions developed a unique computer model designed specifically for the northwest State Forests. For the analysis, planning team members divided these forests into 23,000 stands. The stands were further subdivided into 131,000 smaller parcels, with separate parcels for riparian zones and variations within the stands. The next step was to use the computer model to simulate the management activities. For example, foresters could thin a 50-year-old stand of trees, removing some trees and allowing the remaining ones to grow bigger. Years later, the stands could be harvested for timber. After final harvest, the area would be planted with new trees, and as these trees grew, thinning decisions could be made again. Working with College of Forestry graduate student Jeff Hamann and ODF staff, Sessions entered 55 different thinning regimes, or pathways, into the computer model, and 15 to 20 final harvest possibilities, varying by the structure and age of the stand, the land allocation, and the type of harvest. The computer model then analyzed the possible decisions that could be made to reach the SBM goals. For each of the 131,000 parcels, one of the 55 possible pathways was picked for the existing stand, along with the final harvest age. After the final harvest, the stand could go down any one of the 55 pathways again. The model looked at the effects by decade for 200 years. “On some stands you have potentially more than a million choices over the next 200 years,” Sessions explains. Multiply the million choices by the total number of stands, and the number of possibilities became almost astronomical just for one alternative. The team wanted to analyze seven alternatives. Sessions began his work with the Oregon Department of Forestry in November 1999. His computer model was able to analyze the seven alternatives and show the differences among them. “Nobody assumes you’re seeing the future perfectly,” Sessions explains, “but you can use the analysis to make a relative comparison among alternatives.” The team made their initial presentations to the Board of Forestry in March 2000, and the final presentations in May 2000. Sessions points out that the computer model does not replace on-theground fieldwork. Forest managers will still go out in the forest, collect data, and make decisions. They will regularly monitor what actually happens on the forest. The computer model gives some idea of the long-term consequences of a course of action. But even with all its data, the model is not comprehensive. It is only a simulation. Unpredictable changes occur, such as fires, windstorms, and most unpredictable of all, changing human values. The Board of Forestry began the process to adopt the Northwest Oregon State Forests Management Plan as an administrative rule on September 6, 2000. After public review, the plan was approved in January 2001, and SBM became the new management direction for Oregon’s northwest State Forests. Sessions’s computer analysis helped the planning team understand the cumulative effects of their plan. The team looked 200 years ahead and was able to say with more confidence that structure-based management would produce a healthy, sustainable forest. “Stewardship is strongly associated with sustainability,” Sessions says. “It means sustainability of forest structures and forest conditions, and also the types of ouputs that society values—sustainability of local communities and employment. Then we’ve added sustainability of forest structure for wildlife and water also.” Although he refers to his computer model as a “harvest scheduling model,” Sessions points out that the model is more than that. “The model addresses not only what goes, but what stays.” 13 LINKING FOREST STEWARDSHIP AND ECONOMIC VIABILITY These computer log forms can be “sawn”—virtually speaking—over and over again in different ways. T 14 he wildfires of the summer of 2000 called national attention to the problem of densely stocked forests in the West. Trees are crowded shoulder-to-shoulder over millions of acres, are vulnerable to insect and disease problems, and represent a significant fire hazard. Jim Funck reconstructs a log from sawn From an ecological standpoint, flitches. forest managers see a need to thin these stands. But the pole-sized trees are usually less than 10 inches in diameter. Traditionally such trees have had little value to mills. “The people who own the forest want to do stand management economically, but they can’t right now because the mills won’t bid on smalldiameter timber, or they bid very low,” says Jim Funck. He and Charles Brunner, associate professors in the Department of Forest Products, are working on a project to find the most value in the harvest and use of smalldiameter timber. Brunner’s and Funck’s study is one part of the Fund for Rural America Small-Diameter Timber Project, funded by the U.S. Department of Agriculture. The overall project has three key objectives: to promote good forest stewardship, to provide jobs to rural communities, and to make small-diameter timber more economically viable. Brunner and Funck are working with their Forest Products colleague John Punches, the Forestry Extension agent in Douglas County. Other participants are researchers in various divisions of the USDA Forest Service; specifically, the Pacific Northwest Research Station, the Rogue River National Forest, the Forest Products Laboratory in Madison, Wisconsin, and the State and Private Forestry program. Typically, when a mill bids on a timber sale, says Funck, it assigns values to logs based on their potential value as boards. Smaller logs can be more valuable as cut stock (that is, window frames, doors, moldings, and other manufactured products), and indeed the mill might eventually capture higher profits by selling some boards to a cut-stock manufacturer. However, there is no guarantee that such a market will be available, and thus no reason for the mill to pay a higher price for small logs at the outset. Brunner and Funck are working on a method to determine the best utilization, and hence the highest value, of small-diameter logs. Ultimately their work could help sawmills maximize the value of timber sales in smalldiameter stands. If small logs are more valuable, it may become more profitable to thin fire-prone forests to reduce fuels. The researchers’ first need was to gather information about the quality of lumber that comes from small-diameter logs. Brunner and Funck developed a method for tracking a small log through the felling, bucking, and sawing processes and measuring the defects and other characteristics of the resulting boards. Then, using a computer model, they devised a process for virtually reassembling the boards back into the configurations of the original logs. The trees being studied are Douglas-fir and ponderosa pine logs between 5 and 10 inches in diameter, thinned from stands on the Rogue River National Forest. The researchers took detailed measurements of each felled tree, including knot and branch patterns, stem size, and stem taper. The trees were then bucked into 16-foot logs and sawn into flitches—unedged boards. The flitches were “mapped” according to where they had come from within each log. The flitches were hauled to the laboratory at the College of Forestry. Brunner and Funck used a track-mounted camera to take pictures of each flitch. The photographic images recorded the shape of the flitch and size and placement Scan of a log, virtually reassembled by the computer, of each knot, defect, or other sig- with defects mapped. nificant feature. The images were scanned into a computer database, and then reassembled by the computer into an image of the original log. These computer log forms can be “sawn”—virtually speaking—over and over again in different ways. The computer model enables Brunner and Funck to explore all the 15 possibilities for the best utilization of a particular log in light of the current value of different types of products. For larger trees, the optimal yield is usually from plain lumber. But for these small-diameter logs, says Funck, the knots and other defects and the variations in the taper of the log results in lumber of widely varying grades. “We needed to look at the next step beyond lumber, at making cut-stock parts, to see if the tree could be worth more than its value as lumber,” Funck says. Subsequent economic analyses found that, for most configurations tested through the computer model, the wood was worth more as moldings, trims, and other specialty wood products than it was as plain lumber. If these higher values could be routinely captured, small-diameter trees could be worth much more to bidders on timber sales. However, say Brunner and Funck, few mills are now set up to take advantage of these higher values. Sawmills and cut-stock mills will need to cooperate, perhaps forming partnerships, in order to realize the maximum value from these small logs. He and Funck will be bringing their research to the attention of mill managers and buyers through an outreach effort, soon to be undertaken in cooperation with OSU Forestry Extension and the Forest Service’s State and Private Forestry Program. The good news, say Brunner and Funck, is that good forest stewardship has at least the potential for being economically viable. It’s hard for forest managers to get needed thinning done when there’s no money in it, says Funck. “But more-profitable thinning may at least reduce the subsidy that has to be paid to get someone to do stand management for stewardship purposes.” 16 ACTIVELY RESTORING EAST-SIDE FORESTS The expertise and technology exists to harvest trees from these distressed forests in an environmentally sensitive way. L ast summer’s devastating fires throughout the western United States served as a reminder that the dry conifer forests of eastern Oregon and much of the inland West are still vulnerable to catastrophic fire. Managers now have choices beyond simply letting nature take its course. Loren Kellogg’s work shows ways to reduce Loren Kellogg’s studies in small-log harfuels profitably in stressed east-side forests. vesting on Forest Service lands in Oregon’s Blue Mountains are showing that it is possible to reduce the risk of fire in these forests—and generate a profit at the same time—while benefiting the environment. The problems in east-side forests have been nearly a century in the making. Historical logging of the dominant ponderosa pine, coupled with a policy of suppressing the frequent, small wildfires that periodically swept through pine stands, has changed the composition of these forests markedly from what it was before European-American settlement. Once-open understories are now crowded with Douglas-fir, grand fir, western larch, and lodgepole pine, species vulnerable to attack by the mountain pine beetle and the western spruce budworm. The dry spell of the mid1980s through the mid-’90s stressed the trees and exacerbated the insect attacks, resulting in high concentrations of dry fuels on the ground, as well as standing dead trees. Kellogg and several OSU scientists coauthored a 1995 report to Governor John Kitzhaber on the state of forests in eastern Oregon’s Blue Mountains. Most of the forest is alive, wrote the authors, but much of it is severely stressed. Kellogg and the other scientists suggested that active management could move these stands closer to the historical mosaic of forest conditions that existed immediately before white settlement. 17 18 Kellogg has been working for several years on ways to actively manage stands and reduce fuels in these forests. He and his doctoral student, Peter Matzka, recently completed an experiment in thinning and prescribed burning on several fire-prone stands in the Wallowa-Whitman National Forest near Enterprise, Oregon. The study, called Hungry Bob, was located in the Wapiti Ecosystem Management Project Area. It compared three different management scenarios for east-side forests: thinning alone, prescribed fire alone, and thinning combined with prescribed fire. Kellogg and Matzka wanted to know not only the yield and profitability of the harvested timber, but also the costs of prescribed fire and how different stand conditions affect the economics of forest operations. Other scientists in this multidisciplinary study are investigating how each treatment will affect the production of morels, an edible fungus that can be a valuable secondary forest product. Also being studied is the degree of damage to the residual stand from thinning and prescribed burning. An important objective of Kellogg’s and Matzka’s research is to develop a decision matrix that will help forest managers evaluate different stand conditions and other variables and decide what to do in particular situations. “There are so many variables,” Kellogg says. “Stand structure and composition are different in each stand. The amount of fuel loading varies, and the type of fuel varies. The economic feasibility varies depending on log prices, transportation costs, and the expense of the equipment. Potential environmental effects vary depending on the terrain and proximity of streams, as well as the impacts of the different harvesting equipment on the site. The risk of introducing prescribed fire certainly varies from site to site.” The decision matrix, a major component of Matzka’s dissertation, will be something like a flow chart that lets managers step through these variables one at a time, identifying economic and environmental tradeoffs that occur among different stand management treatments and forest operations techniques. The thinning at Hungry Bob was carried out in 1998 with a cut-to-length system that employed a harvester and a forwarder. A harvester is a sophisticated machine that fells the tree, shears off the branches, and bucks the bole into desired log lengths. The forwarder loads the logs and transports them to the roadside. The severed branches and their twigs and needles are left on the ground to provide cushioning to the soil against the weight of the machine. The sites receiving prescribed burning were burned the following fall. Economics of the operation were carefully projected, says Kellogg. Because the machines are expensive to purchase and operate, and the timber value pro- vided by these distressed stands is usually low, the harvesting must be planned carefully. “We were working in stands where you have maybe 10 to 30 percent high-value sawlogs, and the rest is low-value pulpwood,” he says. The Hungry Bob study is a fully replicated scientific experiment building on information gleaned from two earlier studies Kellogg conducted in the Blue Mountains. The Hungry Bob results are not yet complete, but these earlier studies provide reason for optimism. Kellogg and his students investigated various combinations of small-log harvesting equipment to determine the economic and environmental effectiveness of each alternative, and found that harvesting could achieve both stewardship and profit. The first study, called Deerhorn, took place in 1994 on a site about 50 miles southwest of Pendleton. Trees were felled, limbed, and bucked by a harvester and yarded by a small skyline yarding system. Objectives of the harvest were to reduce fuels, improve conditions for the remaining trees, and minimize damage to the soil and the trees. Kellogg and his master’s student, Cameron Brown, found that the harvester-yarder combination succeeded in all these objectives, and made a profit besides. Although only 29 percent of the yield was in sawlogs, a good log price at that time ($515 per thousand board feet) allowed that segment of the operation to more than cover losses from harvesting and utilizing the pulpwood. In the second study, called Limber Jim, Kellogg and his master’s student, James Doyal, worked with researchers from the University of California at Davis to compare a harvester-skyline yarder combination, the system used at Deerhorn, with a cut-to-length system. Conditions in that forest were different from those at Deerhorn. Only 12 percent of the yield was sawlogs for the skyline system, only 6 percent for the forwarder. In addition, log prices were lower, $425 per thousand board feet. Both harvesting systems produced similar and acceptable results in terms of fuels reduction and low soil disturbance, but at different stump-tomill costs: $42 per green ton for the harvester-forwarder system, versus $72 per green ton for the harvester-skyline system. The good news from these studies, says Kellogg, is that the expertise and technology exists to harvest trees from these distressed forests in an environmentally sensitive way, reducing fuels and lessening the risk of catastrophic fire. And if such management can also turn a profit, there’ll be less need for government subsidies. “For people to buy timber sales and invest in these half-million-dollar machines,” says Kellogg, “these operations have to be profitable. And they can be. With the right system and careful planning, it can be done.” 19 SPEAKING THE DOUGLAS-FIR BEETLE’S LANGUAGE Pheromones are not pesticides—they do not actually kill any insects, and they do not have any of the health or environmental concerns associated with many pesticides. D 20 ouglas-fir beetles “speak” to each other in the language of pheromones—chemical signals that send messages to other Douglas-fir beetles. Research done at Oregon State University in the 1970s contributed to the identification of these chemicals and the messages they transmit. Darrell Ross, associate professor in the DeDarrell Ross with a bag full of Douglas-fir beetles. partment of Forest Science, is taking this research to the next stage. He is investigating how to use these signals to manage the beetles and their impacts on forests. “I’m learning to speak the Douglas-fir beetle’s language,” says Ross. Ross is devising techniques for, among other things, using pheromonebaited traps to attract and kill Douglas-fir beetles. Pheromones are not pesticides—they do not actually kill any insects, and they do not have any of the health or environmental concerns associated with many pesticides. The traps catch the beetles and kill them with a small amount of pesticide used in the trap’s collection cup. No spraying is involved. Pheromone techniques are beginning to be used operationally as part of an integrated program of forest stewardship—as an additional tool in the manager’s toolbox, along with silvicultural tools such as thinning and salvage logging. Douglas-fir beetles feed on and breed in the phloem of recently dead Douglas-fir. The phloem is the tissue between the bark and wood. Since dead and dying trees are normally scarce in the forest, the Douglas-fir beetle has evolved an aggregation pheromone—a chemical signal that tells other Douglas-fir beetles in the area, “here’s a dead tree.” The signal attracts large numbers of beetles to the tree. When the tree cannot support any more Douglas-fir beetles, the beetles send out another chemical signal, an antiaggregation pheromone called 3methylcyclohex-2-en-1-one (MCH). “The antiaggregation pheromone serves as a ‘No Vacancy’ sign,” Ross says. “It tells the other beetles the tree is full, and keeps them from overpopulating the resource.” The beetles are normally present in low numbers in the forest. But when a windstorm or forest fire kills a large number of Douglas-fir trees, a beetle outbreak can occur. The beetles move into the dead trees and lay eggs, then their broods overwinter. When a new generation of beetles emerges the next spring, the beetles seek out live trees, if there are not enough dead ones. Because the Douglas-fir beetles can survive only in dead trees or dead parts of trees, they need to kill the live trees. It takes many beetles to kill a large Douglas-fir, their preferred target. The first beetles to colonize a live Douglas-fir send out the aggregation pheromone, a signal that calls other beetles to the tree. The beetles make a mass attack on the live tree and overwhelm the tree’s self-defense. In the past, foresters responded to Douglas-fir beetle outbreaks by salvage-logging the dead trees and the live trees attacked by the beetles. But two things changed, Ross explains. First, particularly on national forest lands, foresters now manage with goals of forest stewardship and ecosystem management, rather than primarily for timber. Second, not many large, old Douglas-firs remain in the mixed-species forests of eastern Oregon, Washington, Idaho, and Montana. Forest managers in eastern Oregon usually want to retain all the large, old Douglas-fir they have. Using techniques developed by Ross and his cooperators, these managers can use pheromones to protect some trees from beetles, to trap and kill beetles, and to attract remaining beetles to areas where some tree mortality is acceptable. In these areas, beetle-killed trees can either be harvested or left for snags. In their studies on the Wallowa-Whitman National Forest and other locations, Ross and Gary Daterman, of the USDA Forest Service Pacific Northwest Research Station, are conducting many trials to refine their techniques—to speak the beetles’ language more effectively. They are learning the best ways to apply the pheromones, what doses are most effective, and which trap designs and locations work best. In one strategy, the antiaggregation pheromone, MCH, packaged in plastic capsules, is placed in trees and then removed at the end of the season. Ross has found that MCH keeps Douglas-fir beetles away from trees that would otherwise be attacked. 21 The antiaggregation pheromone was registered by the Environmental Protection Agency in 1999 and is now available to foresters for operational use. Just in the past year, forest managers have used MCH and Ross’s techniques in eastern Oregon, Washington, Idaho, and Montana. Applied once in the spring, MCH is effective all year. A Douglas-fir beetle outbreak typically lasts two to three years, so MCH will have to be applied for several years in a row. The research has reached the point where pheromones such as MCH can now be used on a landscape level. “It won’t be used on thousands of acres,” Ross says, “but rather in specific areas over a large landscape. Managers might treat old-growth Douglas-fir in recreational areas or other highvalue areas. Other areas could tolerate some tree mortality or might benefit from additional snags, or salvage logging could be done. Then managers could draw the beetles to those areas.” The large forest fires of the summer of 2000 left thousands of acres of dead and fire-damaged trees. The scorched trees and live trees near burned areas will be highly susceptible to Douglas-fir beetle outbreaks over the next few years. Ross expects a lot of interest from forest managers in using pheromone techniques to protect mature trees. “We can use MCH to change the beetles’ behavior,” Ross says. “We can protect the large, mature trees, of which we have a shortage, until other trees grow to those ages and sizes.” By speaking the Douglas-fir beetle’s language, Darrell Ross is helping forest managers achieve their objectives in a way that works with natural processes. 22 TAKING CARE OF THE PEOPLE WHO TAKE CARE OF THE FOREST Sometimes the discussions about better forestry do not mention the people who actually do the work—as if stewardship could somehow be accomplished without them. M odern forestry emphasizes stewardship of forest resources. Harvesting operations are designed to protect wildlife, water quality, and fish. But sometimes the John Garland (right) acquaints a colleague with synthetic rope. discussions about better forestry do not mention the people who actually do the work—as if stewardship could somehow be accomplished without them. “Who takes care of the forest?” John Garland (Forest Engineering) asks. “We have an idea that it’s foresters, because they’re the ones who make decisions and make plans on computers. But the people out in the woods doing the work are essential to the success of the project. The loggers are the applied ecologists.” Throughout his career, Garland has focused on stewardship of the human resource in the forest. He has worked to improve safety and working conditions in the forest. He has also designed and taught training programs that teach loggers about forest ecology and silviculture, safety, changing forest regulations, Best Management Practices, and sustainable forestry. “If we want to practice sustainable forestry,” says Garland, “we need to train the people who actually do the work on the ground.” His training programs respect and incorporate the extensive knowledge that loggers already have about the forest. Currently Garland is working with the Oregon Occupational Safety and Health Administration (OR-OSHA) to make ergonomic improvements in the logger’s workplace. Ergonomics is the applied science of designing a workplace that maximizes productivity by minimizing worker fatigue and discomfort. 23 24 Although working in the forest has many inherent risks that cannot be eliminated, much can be done with the equipment and practices that loggers use, in order to reduce fatigue, improve safety, and improve productivity. “If we can lighten the workload,” Garland says, “then we have good prospects for reducing fatigue and injuries.” Garland is researching a synthetic rope, a new product that helps loggers do their job better. The synthetic rope is much lighter than traditional steel rope but equally strong. That in itself is an improvement, but the synthetic rope has other benefits as well. It offers greater flexibility in where lines are placed in logging operations, and thus presents new options for tree harvesting and logging systems. Garland first learned about synthetic rope from a logger, and was intrigued by its possibilities and how it might change the logging workplace. Garland received a grant from OR-OSHA to study synthetic rope and its potential applications in logging operations. Under this grant, Garland is working with a twelve-strand braided rope made of ultrahigh molecular weight polyethylene. It resists ultraviolet light and abrasion, and it floats. Wire rope has a tendency to develop, needle-like splinters, and workers have to take precautions to avoid injuries from these “jaggers.” Synthetic rope does not have this problem. However, being more flexible than traditional wire rope, synthetic rope is more likely to get accidental knots. Moreover, there are still questions about synthetic rope’s stretch and durability, and synthetic rope may not replace steel rope in all situations. Although it is not against the safety codes to use the synthetic rope right now, Garland cautions that a degree of restraint should be used. Much is still unknown about the synthetic rope’s capabilities, and it could be dangerous if used inappropriately. The synthetic rope is being used for static guylines, straps, and intermediate support lines. Garland is investigating its use for chokers, winch lines, running lines, and skylines. Garland is also working on several improvements and refinements. For example, it is difficult to connect synthetic rope to traditional wire rope. Garland is seeking another grant to develop end connectors that make it possible to connect the two types of rope. A satisfactory design will open opportunities for companies to manufacture the connectors. Another possible development is the placement of a fiber optic strand down the center of the synthetic rope when it is manufactured. It is currently impossible to detect damage in the center of ropes, yet this unseen damage can lead to rope failure. A fiber optic strand transmits light no matter how many bends or coils a rope has. Thus, a person could shine an ordinary flashlight into the fiber optic strand at one end of the rope, and if the strand were intact, light would come out of the rope’s other end. The fiber optic strand would be an additional safety feature, allowing a simple test for unseen damage. Although the synthetic rope costs about four times as much as wire rope, it weighs only about one-sixth as much. In Garland’s test operation, a steel rope guyline weighed 111 pounds. A guyline of synthetic rope weighed 18 pounds and was able to carry the same payloads. If the synthetic rope leads to a gain in productivity, Garland says, it could easily pay for itself. The synthetic rope has been tested by Oregon State University’s student logging crew. It reduced the physical demand of logging, as measured by the heart rates of student workers. Women crew members carried the synthetic rope up a 40 percent slope, and found it much easier than carry- These instruments are used to monitor heart rates of crew members. ing wire rope. “The forest industry in Oregon is alive and well, and it’s changing rapidly,” Garland says. “Timber is being harvested with a high-tech approach. Harvests now are likely to selectively remove trees and logs. Synthetic rope is helpful with these more selective operations.” Oregon State University has long been known as a leader in the development of logging technology and innovative forest products. Garland’s research continues this work. In addition to his studies of new products, Garland is working on improving workplace safety. He is the university representative on a committee working with OR-OSHA, helping the agency to revise Oregon’s Forest Activities Safety Code. 25 MAPPING THE MANY LAYERS OF SALMON HABITAT “If we can find a way to make these workshops portable and present them to the watershed councils in their own districts, we can help empower the councils to conduct watershed assessments.” I 26 n the 1990s, the decline of salmon emerged as a major environmental problem in Oregon. But little was known about the current condition of Michael Wing, knee-deep in the South freshwater salmon habitat in the streams Santiam. where salmon spawned. Work done by Michael Wing, of the Department of Forest Engineering, will help people better measure stream conditions, and thus better target restoration work. Government agencies, watershed councils, and volunteer groups will all be able to use Wing’s analysis and his techniques to get a better understanding of habitat quality and restoration needs for individual streams. The Oregon Department of Fish and Wildlife (ODFW) developed the Aquatic Inventory Project in 1990 to collect better information on freshwater habitat in Oregon streams. The agency also developed a detailed protocol and training sessions to create a standard survey approach for measuring aquatic habitat conditions. Through the project, stream survey data were collected consistently by crews from several agencies and organizations, making it possible for ODFW to gather data from many more streams than their own crews could cover alone. Since 1990 this protocol has been used to collect information on thousands of streams across Federal, State, private, and tribal land ownerships, creating a huge database. The great volume of data has made analysis very challenging, however. Given current concerns about salmon habitat, the FRL Advisory Committee has made the analysis of the database a research priority. Michael Wing was hired by OSU’s Department of Forest Engineering to tackle the challenge of analyzing the database. In collaboration with For- est Engineering professor Arne Skaugset and an advisory group composed of College of Forestry and agency representatives, the decision was made to transform the stream survey database into a geographic information system (GIS) environment. GIS is a computer system that stores and analyzes spatial data. Spatial data are better known as information that can be displayed on a map. Once spatial data are digitized, or entered into the computer, GIS can be used to organize the data in layers, or themes. The system can add new layers of data, merge data layers, and analyze the data in ways not possible with conventional maps. “GIS is a great tool,” says Wing. “We would have been very hard-pressed to move ahead with analyzing this database without GIS. It opens up the database and allows us to make it stronger.” Most GIS projects cover only one watershed or a district. It took Wing and his assistants nine months to create a GIS database with the survey data from hard-copy maps of 1,370 streams in western Oregon, an area from Astoria to Ashland and from the Coast to the Cascades. In their fieldwork, the survey crews divided the streams into 3,793 reaches, using criteria such as stream junctions and changes in forest cover. The crews collected data on roughly 80 variables important to salmon habitat, including the amount of large wood in and near a stream, the number of pools and their depth, and the type of stream substrate, and the material that forms the streambed. At that point, Wing had stream habitat maps for much of western Oregon. Those maps were valuable, but GIS could do even more. “The real advantage was that GIS allowed us to add information that was not included in the survey data,” Wing explains. GIS allows a researcher to overlay data sources, a computerized and more-sophisticated version of transparency overlays for maps. Wing obtained GIS maps that showed geology and land ownership from the Oregon State Service Center for GIS (SSCGIS) in Salem. On the computer, he draped those layers on top of his stream habitat map. Maps could then be printed with one, some, or all of the layers for any surveyed stream or watershed. Wing also used a program that added stream-order information into the GIS database. The uppermost streams in a watershed can be classified as first-order streams; at the first junction with another stream, a second-order stream is formed, and so on down the watershed. It would have been extremely time-consuming to classify stream order from topographical maps, but the new program classified the streams in a matter of hours. 27 With the new data, Wing was able to find relationships not revealed by the original database. He found that, for streams on forest land, stream order was the most important variable related to the amount of large wood in the streams. First- and second-order streams in the upper watersheds had much more large wood than did higher-order streams farther down in the watershed. Land ownership was not a significant factor influencing the amount of large wood in the streams. Wing found that when comparisons were made among different types of ownerships—for example, between Federal and private forest lands—there were only small differences in the amount of large wood or the number of pools in the streams. The significant differences emerged between streams on forest land and streams in different land uses, such as agricultural or urban areas. “Our forested streams are in relatively good condition, including streams on forest industry lands,” Wing says. He suggests that restoration work might be focused on streams lower in the watersheds, which generally have less large wood and fewer pools, and yet are often the streams most accessible to salmon. Currently Wing is working on a finer scale of analysis. Within the stream reaches, survey crews identified habitat units, which are identified by the pools, riffles, or rapids that define the streams, and are usually no longer than the stream is wide. The database contains 350,000 habitat units. A single analysis at this level of resolution may take days for the computer to complete. Forest managers and watershed councils can use the results of these analyses to guide their actions and improve their stewardship of streams. Wing is teaching people how to use GIS through continuing education workshops at OSU. Once a person has completed one of Wing’s workshops, he or she has the skills to access the ODFW database on the Internet and query on specific information for a stream or watershed. Wing is working on a proposal that will make the GIS workshops more accessible to Oregon’s watershed councils. Many of these groups have limited resources for training members, who are mostly volunteers. “If we can find a way to make these workshops portable and present them to the watershed councils in their own districts,” Wing says, “we can help empower the councils to conduct watershed assessments. GIS has emerged as one of the most significant and widely used tools available for forestry and natural resources research.” 28 PUTTING NUMBERS ON WOOD’S ENVIRONMENTAL PERFORMANCE “Consumers, through their architects and builders, will be able to choose the best ways to reduce energy use or CO2 emissions.” W ood’s reputation as an environmentally friendly building material is diminishing, says Jim Wilson—even though it is sustainable, renewable, recyclable, and manufactured with relatively little in the way of toxic ingredi- Jim Wilson is documenting the environmental friendliness of wood. ents or emissions. Now Wilson is taking part in a comprehensive, nationwide study that will provide valuable information to consumers and policymakers on the environmental performance of wood. It will help them consider all the factors that affect whether a given building technology—wood, concrete, steel, or plastic—is environmentally friendly or not. “We believe strongly in the environmental friendliness of wood,” says Wilson, professor in the Department of Forest Products. “What we’re doing now is documenting it.” Wood, he says, has another advantage over concrete and steel, its two main competitors as structural building materials. A growing forest is a carbon sink that scrubs the air of excess carbon dioxide (CO2) emissions. Planted forests have been proposed by some policymakers as a means for removing excessive amounts of CO2, a so-called greenhouse gas, from the atmosphere. What’s more, structural wood products tie up carbon as long as they remain intact. Wood releases carbon, in the form of CO2, back to the atmosphere only when it decomposes or is burned. Wilson is working with a team of scientists from 15 universities and the Forest Service to assess the environmental performance of wood building materials, “from cradle to grave.” In a process known as life-cycle analysis, the team is looking at all the material and energy inputs and outputs, from 29 30 the planting of the seedling, to the growing of the tree, through harvesting, transportation, manufacturing, home construction, home use and maintenance, and eventual disposal or recycling of the wood. Consider all the inputs—material and energy—required to build and occupy a 2,000-square-foot new home throughout its service life. How much electricity, gas, other fuels, and water are consumed in the course of growing and harvesting the trees for the wood products used to build the house? How much energy is used to manufacture the lumber, plywood, beams, and trusses? How much adhesive is used to hold the plywood and laminated beams together? How much material and energy is needed for heating and maintenance? Then consider the outputs. How much carbon monoxide is emitted by the truck that carried the logs to the mill? How much formaldehyde and volatile organic compounds go into the air and water in the manufacturing process? How much carbon is sequestered in the lumber? How much carbon is absorbed by the trees planted to replace those logged? How much CO2 and methane gas will be released into the atmosphere if the lumber is allowed to decay, or is burned, after the house is torn down? How much less CO2 will be released if the lumber is recycled rather than dumped in a landfill? Finally, what is the combined effect on the environment of all these inputs and outputs multiplied by the 1.4 million new houses built in the United States each year? These are some of the questions that the six-year, $5-million study will address. The answers, says Wilson, will help counter the false perception that harvesting trees to make wood products harms the environment. The study will also help the wood-products industry address real environmental concerns through cost-effective management practices and process improvements. “What would the environmental impact and cost be of, say, changing from wood-fired boilers to gas-fired,” says Wilson, “or adding more pollution control devices to the wood dryer or hot presses? Pollution control devices typically use a lot of energy—electricity and natural gas, both of which are rapidly increasing in price and are becoming limited in availability. What are the best alternatives and tradeoffs? When the study is completed, manufacturers will be able to answer those questions more accurately.” This capability will help the industry maintain its competitive edge over steel, concrete, and plastic for building materials. Wilson’s study is funded by the Forest Service and the participating universities, with additional funding from wood-products manufacturers and manufacturing associations. It expands on a 1976 project undertaken by the Committee on Renewable Resources for Industrial Materials (CORRIM), sponsored by the National Academy of Sciences at the request of President Jimmy Carter during the last U.S. energy crisis. That study considered only the energy and material inputs of wood products used in homes, and only from manufacturing through construction. By adding emissions and carbon balance to the scope of research, and by looking at the entire life cycle of wood products from planting trees to eventual disposal or recycling, “our study has greatly expanded those boundaries,” says Wilson. Wilson is on the steering committee for the whole project. He oversees the technical subcommittees dealing with the forest resource, manufacturing, wood structures, and the use and disposal or recycling of wood products. The current study, CORRIM II, is now in its first phase, a two-year, $1.2-million effort to gather the quantities of data that will be required and to refine the analysis and modeling procedures. The team is working on interfacing the analysis methods with those used in similar studies in Canada and Europe, to provide a basis for comparing wood’s environmental performance internationally. The scientists will calculate all the energy and emissions per unit of material, then multiply those numbers by the amount of material used. They will figure inputs and outputs for each step in the manufacturing process. How much of every kind of energy and emissions is associated with peeling a log for veneer? For generating the steam to soften the wood? For drying the veneer? For hot-pressing it together into a piece of plywood? How much for various fuel sources? How much for emission control devices? When it is finished, says Wilson, the CORRIM II study will provide a powerful tool for answering all kinds of questions about the environmental performance of wood. Application of the study’s results will help manufacturers efficiently improve their environmental performance and provide comparative numbers to consumers about the environmental benefits and costs of building with wood, steel, concrete, or plastic. “Consumers, through their architects and builders, will be able to choose the best ways to reduce energy use or CO2 emissions, if these are priorities,” says Wilson. “And our elected leaders will have access to good data as they make decisions about natural resources that affect all our lives.” 31 FORESTS AS CO2 SPONGES “If we allowed forests to grow longer between harvests, and if we left more live and dead trees out there to drive up the average storage on a site, I think it might be possible to double the store of carbon in a forested landscape.” H 32 ow much carbon is there in the world, and where Mark Harmon amid some carbon storage devices on the McDonald-Dunn Forest. is it? Early in his scientific career, Mark Harmon was answering that question on a very small scale, measuring carbon in bags of leaves and pieces of wood. His master’s program advisor, ecologist Jerry Olson at the University of Tennessee, was looking for carbon on a broader scale—across watersheds and landscapes around the globe—with the help of increasing quantities of gathered data and early mathematical and computer models Harmon and others were developing. Tracking down carbon may seem an esoteric pursuit, but it can help policymakers address an urgent, worldwide issue. Carbon, in the form of carbon dioxide, or CO2, released into the atmosphere by the burning of fossil fuels, is a chief factor in the gradual warming of the Earth’s atmosphere that many scientists think is triggering a global climate change. Both living plants and decomposing dead ones play a crucial role in the balance of the world’s atmospheric carbon dioxide. All living plants absorb CO2 from the air—it is a building block of all organic matter. Young, fastgrowing plants, rapidly adding biomass, absorb it faster than older plants. Policymakers concerned with global warming are looking to forests to help absorb excess CO2 from the atmosphere. Harmon, who holds the Richardson Chair in the Department of Forest Science, began his career at OSU studying rotting logs on the H.J. Andrews Experimental Forest, on the west slope of the Oregon Cascades. When he joined the faculty in 1984, Harmon initiated a 200- year study of carbon release and many other processes associated with decomposition of wood. These days, following in his advisor’s footsteps, Harmon has broadened his search for carbon to a worldwide scale, looking for CO2 uptake and release patterns in the temperate forests of North America and the boreal forests of northern Russia. Thanks to powerful computer models, remote sensing, and other high-tech investigative tools, he says, it is becoming possible to know at least approximately how much carbon there is in a forest, a watershed, a region, a continent, even the whole world. He is in the midst of several carbon-related studies, collaborating with Forest Science colleague Warren Cohen, a remote-sensing expert; OSU economist Joe Kerkvliet; and others. In one study, Harmon and Forest Science colleague Olga Krankina are working with seven Russian forestry scientists to refine measurements of dead wood in Russia’s vast taiga, the conifer-forested region that occupies nearly half Russia’s land area and stretches from the Baltic to the Pacific. Almost one-fifth of the world’s forests lie in that boreal belt. In the past decade, scientists have become aware that, around the world, carbon is being taken up faster than it’s being given off—good news for global warming. But nobody knows why there’s a “carbon sink,” or exactly where it might be. “We haven’t been able to balance the books globally,” says Harmon. “Because the Russian forests are so extensive, we felt it was important to know what they’re actually doing in the carbon budget.” From taking surveys of salvageable dead trees, the Russian forest service already had rough estimates of the amount of dead wood in its forests. But these surveys weren’t accurate on certain measures critical to the carbon equation, such as the volume of trees too rotten to salvage. Harmon and Krankina are helping the Russian scientists devise more-precise ways of measuring the dead wood. Some scientists, Harmon says, think the missing carbon sink is in North America, where formerly deforested lands, especially in the East and Midwest, are growing trees again. “There’s a political dimension to this question,” he says. “We in North America are the biggest users of fossil fuels— which put carbon into the air—while we have only 5 percent of the world’s forests.” Knowing the role of Russian forests will give policymakers more information as they tackle the question of how to assign responsibility for abating global warming. 33 34 The idea of using forests to help scrub the air of CO2 has added more controversy to an already controversial issue. “How a forest is managed,” says Harmon, “can make a big difference in how much carbon it stores, or releases.” One suggestion, plausible on the surface, is to harvest older forests, which aren’t doing very much in the way of CO2 uptake, and replace them with young plantations. That proposal, unsurprisingly, was not popular with conservation groups. In a controversial 1990 paper published in the journal Science, Harmon and colleagues Jerry Franklin (University of Washington) and Bill Ferrell (OSU Forest Science) noted things weren’t quite that simple. “The complicating factor is scale,” says Harmon. “The argument was that old forests have dead trees in them that give off carbon. That’s true, but it proved to be irrelevant at the landscape scale. There’s a difference between one rotting log on one site and a whole forest that contains many rotting logs and a lot of living biomass.” Harmon’s top graph on the opposite page (A) compares projected carbon storage in a modeled forest blown down and then left alone for 300 years with carbon storage under a scheme of clearcut harvests every 50 years. The unmanaged forest would store on the average almost twice the carbon over its 300-year life, about 95 megagrams per hectare (a megagram equals a million grams), compared with about 50 in the managed forest. “Carbon storage in a forest is not constant, but fluctuates as forests develop,” says Harmon. “After disturbance, carbon storage goes down for a period, and then it goes up. In an unmanaged forest, there’s a bigger change, but the total carbon storage is also higher.” The lower graph (B) shows carbon flux, or changes in the total store of carbon. The managed forest would oscillate between taking up carbon as the trees grew and giving it off with each clearcut harvest. The forest would lose as much carbon as it gains on each 50-year rotation. Bringing it under management would result in a net loss of carbon of about 45 megagrams per hectare over a period of 50 to 100 years. Left unmanaged, the forest would take up carbon at an increasing rate until about age 70. Carbon uptake would gradually level off, but there would be a net gain of carbon until age 300. On a practical level, Harmon’s research points out that plantations of certain ages are indeed carbon sponges, but they don’t stay that way forever. And as they mature, other, older stands elsewhere on the landscape are being cut. “Older forests do not take up a lot of carbon, it’s true, but they do store carbon, and when those forests are cut, much of it is released to the atmosphere,” Harmon says. Net Change in Total Stores of Carbon (Mg C/ha/yr) Total Carbon Stores (Mg C/ha) 140 It is true that wood A 120 products manufactured from 100 the cut logs will tie up carbon, keeping it from being 80 released into the atmosphere 60 until the wood decays or is 40 Windthrow 50 yr timber harvest burned. The numbers in Windthrow landscape mean 20 Harvest landscape mean Harmon’s graphs account for 0 all the carbon that would re2 B 1 main tied up in the wood 0 products manufactured from -1 the harvested timber. Car-2 bon losses from actual man-3 -4 aged forests might be greater Windthrow 50 yr timber harvest -5 than the numbers shown -6 here, depending on how -7 50 100 150 200 250 much of the harvested wood Time (yrs) is made into rapidly decomposing products such as paper. In sum, says Harmon, any strategy to use forests to absorb atmospheric CO2 must stay mindful of all the growing and dying going on across the landscape, including the decomposition of wood products. Harmon’s findings also indicate that longer rotations could make forests much more efficient at taking up carbon. “If we allowed forests to grow longer between harvests, and if we left more live and dead trees out there to drive up the average storage on a site, I think it might be possible to double the store of carbon in a forested landscape.” Wood volume harvested from these older forests will also be larger and, in some cases, more valuable. Longer rotations could cost landowners in delayed income from their forests. However, incentives to abate atmospheric CO2 are emerging in some developed countries, including a market in carbon credits that can be bought and sold. “These monetary incentives might not completely offset the revenue from cutting the timber,” says Harmon, “but they might ease landowners’ transition into a less-profitable style of forestry.” 300 35 PLANTED FORESTS—A NECESSARY DIMENSION OF SUSTAINABILITY “We don’t ask ourselves the question, ‘Should we have farming?’ but ‘What kind of farming should we have, and where?’ We should be asking ourselves the same questions about forestry.” S 36 ome people argue that “planted forest” is an oxymoron—that only native forests count as real. Jim Boyle begs to differ. Planted Jim Boyle: “We’re all dependent on wood, and forests are not only real forests— it’s got to come from some place.” they are necessary if the world is ever to achieve sustainability of forests, trees, and wood fiber. “Sustainability argues for inclusive thinking,” Boyle says. “Planted forests are essential—we can’t get along without them”—especially in a country that consumes wood, and everything else, as lavishly as ours does. Planted forests, says Boyle, deserve a respected place alongside native forests in a comprehensive quest for sustainability. A forester and soil scientist, Boyle, a professor in the Department of Forest Resources, is coauthor and coeditor of the book Planted Forests: Contributions to the Quest for Sustainable Societies. The book arose from a 1995 conference Boyle helped organize and to which he contributed the opening paper, wherein he set forth the need for planted forests and the many benefits they provide around the world. Fellow scientists and foresters from 13 countries contributed chapters on the philosophies underlying planted forests, the technologies used to create and manage them, and practical experience with planted forests in a wide range of ecological, social, and economic settings. Boyle, son and grandson of Iowa farmers, was raised in an environment of practical land stewardship. “I grew up learning that there is a very close relationship between human welfare and good stewardship of the land,” he says. Educated in forestry at Iowa State and Yale, he served on the faculty of the University of Wisconsin from 1968 to 1973 and then the University of Michigan from 1973 to 1980. He’s been at OSU since 1981. It was at Michigan that he became well acquainted with the writings of another Iowan, Yale student, and Wisconsin professor—Aldo Leopold. As a Forest Service game biologist and, later, as the patient restorer of a worn-out “sand farm” in Wisconsin, Leopold, through his writings, became a prophetic voice for the conservation and environmental movements taking shape after World War II. It was Leopold’s breadth of vision, taking in both the ecological and the economic aspects of the human-land relationship, that resonated with Boyle’s own thinking about people and forests. “Within his vision of sustainability of the land,” says Boyle, “Leopold includes the need to account for human use and human economics. My forestry education was not at all biased toward timber production; it was a well-rounded scientific education with a broad ecological vision. But I also realized that we’re all dependent on wood, and it’s got to come from some place.” At Michigan, Boyle was looking at the sustainability of the soil resource— specifically, what happens to the soils of second-growth hardwood and aspen forests when whole trees are logged and removed to make chips, compared to what happens when trees are logged and processed on the site and the slash left to return to the soil. Whole-tree harvesting doubles the loss of biomass, but that impact has less-severe consequences on some sites than on others. “My work on soils and harvesting impacts led me to understand that there’s a tremendous range of resiliency in the capacity of soils to sustain ecological processes under intensive management.” In other words, intensive forestry may not be a good idea everywhere, but it works well in some places—perhaps many places. Boyle draws an analogy to farming: “We have tried intensive farming for a long time, and in many places it works well,” he says. “We don’t ask ourselves the question, ‘Should we have farming?’ but ‘What kind of farming should we have, and where?’ We should be asking ourselves the same questions about forestry.” Boyle arrived in the Northwest in the early 1980s and joined the OSU faculty in 1981 as head of the Department of Forest Management (as it then was called). By the late 1980s, he says, the idea that planted forests have an important place in forestry did not seem to be getting much attention from policymakers. 37 When the subject of ecosystem management began to preoccupy the Forest Service and other land-management agencies, “planted forests were hardly mentioned in any discussion.” Most scientists and policymakers were focusing on uneven-aged silviculture and other alternative management strategies in native old-growth forests. Boyle felt it was time to broaden the conversation. In the early 1990s, prompted by OSU colleagues Bill Atkinson and Bob Buckman, he began to organize the 1995 symposium. “We had significant discussion among ourselves about what to call this conference,” he says. “We knew there’d be people who would argue that a forest can’t be planted.” Yet the nearest alternative, “plantation,” hardly seemed to fit. A plantation, says Boyle, connotes trees lined up in rows and columns, neat as a cornfield. But in the Douglas-fir region of the Pacific Northwest and many other parts of the world, planted forests are quickly colonized by other species, eventually developing a complexity of species and structures that makes them belie their label. So, Boyle says, “‘planted forests’ it was.” The conference, held in Portland, drew more than 200 people from around the world to explore the utility and diversity of planted forests. The subsequent book, published by Kluwer Academic Publishers, may be ordered from the OSU Bookstore. Along with his undergraduate class in forest ecology, Boyle teaches a university-wide class in conservation issues in natural resource management. He introduces the students to Aldo Leopold’s ideas and their sometimesuncomfortable implications about human impacts. He also continues his research on the effects of harvesting on soils and potential sustainability, and he has recently assumed leadership of the forest-site working group of the International Union of Forestry Research Organizations (IUFRO). “We can’t sustain large-scale consumption around the world at the rate we’re consuming in the United States,” Boyle says. “And because we all consume, we all participate in the dilemma. I tell my students, ‘I hope you will begin to think about your role in these issues in a different way.’” Planted forests, he says, “are an essential part of any thorough strategy to achieve global sustainability.” 38 WHAT IS THE ROLE OF PRIVATE FORESTS? “What unique social, economic, and ecological roles do private forests play in our fast-changing landscapes?” W hen most people think of Oregon’s forests, they may picture either national forest lands, with generally big, old trees, or expanses of private industrial forestland, with evenaged, younger stands. What may be less obvious is the mosaic of forestland owned by nonindustrial private forest (NIPF) owners. These smaller parcels tucked in amid public and industry lands make up 17 percent of Oregon’s total John Bliss explores the forest land. Because many are the legacy of nineteenth- complicated dynamics of private forest land ownership. century homesteads, they are more likely than other forest ownerships to be located along waterways—politically volatile territory in light of current concerns about watershed health and fish habitat. The owners are a diverse group of people—farmers, ranchers, investors, descendants of homesteaders, urban escapees, and many others—with a diverse set of motivations for owning forest land and diverse approaches to forest stewardship. It’s important to understand what is happening on nonindustrial private forests, says John Bliss, because owner decisions make a big difference in whether these forests are healthy or stressed, whether they stay in a forested condition or are converted to some other use. Bliss is a Forest Resources professor and holder of the Starker Chair in Private and Family Forestry at OSU. “These forests don’t exist in a vacuum,” he says. “They fit within a landscape, and that landscape includes the social and psychological dimensions of human behavior.” The number of acres owned by nonindustrial forest landowners in Oregon has decreased in recent decades, while the number of owners has increased. To some researchers this suggests a trend of smaller parcels receiving less-efficient management, but another statistic complicates the situation: Between 1961 and 1994, about 763,000 acres of nonindustrial private land in Oregon were acquired by private industry. 39 40 “The dimensions of the nonindustrial private forest resource are constantly changing,” says Bliss. “Across the nation, NIPF lands at the urban fringe are being broken into smaller and smaller parcels and converted to residential and commercial uses. Central to my interest is the question, ‘What unique social, economic, and ecological roles do private forests play in our fast-changing landscapes?’” In trying to understand the dynamics of nonindustrial forest ownership, Bliss and his graduate-student colleagues are exploring questions that link the natural and social sciences. Why do nonindustrial owners make the management decisions they do? How do these decisions play out on the landscape? How do past management decisions affect what the forest landscape looks like today? How do nonindustrial owners get along with their federal, state, tribal, county, and industrial neighbors? Studying the interplay between humans and their landscape requires an approach from several angles—a concept known as “triangulation” in the world of social science, from which many of Bliss’s research methods are drawn. Bliss’s student, Brooks Stanfield, used triangulation in a recent case study exploring ownership and forest cover patterns in the Coast Range. Using a method from the social-science side, Stanfield interviewed landowners on watershed history and local knowledge and values. He and Bliss used information from these interviews, analyzed and sorted according to theme, to trace patterns on today’s landscape back to historical changes in forest ownership and management. Stanfield and Bliss also chose a quantitative approach that used GIS and a computer model known as FRAGSTATS to analyze forest cover in 66 Coast Range watersheds. Stanfield identified and mapped forest cover by age and dominant vegetation species, delineating the sizes and contours of patches and the locations and sizes of forest edge and interior. He and Bliss used these data to explore the relationship between forest ownership and forest habitat diversity. “Brooks and I found that, yes, there is a significant link between ownership patterns and forest habitat diversity patterns,” says Bliss. They found that ownership explains some 38 percent of the variation in forest habitat diversity in the Coast Range. Nonindustrial private forests, for example, tend to be widely diverse in age and forest cover, and more fragmented in terms of habitat than either public or industrial lands. They also contain a higher proportion of hardwoods (which is partly explained by their morefrequent situation along streams). “The message,” says Bliss, “is that ownership matters. Different ownership classes—nonindustrial, industry, and public—make different contributions to habitat diversity.” The contribution of each to a particular watershed is related to how much forest land each class owns and where that land lies on the ground within the watershed. Another of Bliss’s students, Stefan Bergmann, is using social-science methods to find out what factors lead to cooperation—or conflict—among neighboring public and private landowners in the John Day Valley. In the study area, private ranchers and forest landowners live and work next to the Malheur National Forest. Bergmann is interested in how these neighbors cooperate, or don’t, on prescribed-fire efforts. Bergmann is using a controversial social-science method known as Participant Action Research, or PAR. In PAR the researcher tries to become part of the community he or she is studying—to the point of allowing the community’s opinions and information to shape and refine the research questions. “PAR has its detractors,” says Bliss, “because if you’re not careful you can compromise your objectivity and fairness.” But properly used, PAR can lead to the most useful and interesting information. “Typically we researchers think we are the best qualified to determine the research questions. But by getting involved with the people you’re studying, you allow yourself to be led to the questions that are really relevant—questions that you might not think of at the outset.” With the help of a research fellowship from the Ford Foundation’s Community Forestry program, Bergmann plunged into his work last summer, interviewing land managers and local officials, observing meetings, listening to oral histories, digging through archives, and taking part in community gatherings. On a day when Bliss was visiting, he and Bergmann started the day with a ride in a local citizen’s private airplane—an informal (and informed) aerial survey of where all the ownership parcels lay, whom they belonged to, and where and when range fires and forest fires had occurred. “We spent the rest of the day in interviews,” says Bliss, “and then we ended with a community potluck supper.” While Bergmann’s results are still preliminary, he did find “a very high level of frustration” with the Forest Service among neighbors, Bliss reports. “There were many beefs—too much Federal management, not enough Federal management, a revolving door with managers coming in and out, policy confusion.” Bergmann’s analysis should help explain some of that frustration, and perhaps even help the John Day neighbors work out a more harmonious relationship. 41 THE SERVICES OF WOOD “Why do trees have the amount of sapwood they do? How much sapwood is needed to transport the water? Is there some other service sapwood is providing to the tree?” E 42 verybody knows that trees are made of wood, but what does the wood do for the tree? Barbara Gartner, biologist and Forest Products associate professor, has some answers. “It may seem odd to say that wood provides services to the tree, but that’s exactly what it does,” she says. Transporting and storing waBarbara Gartner explores the ter is one critical function; mechanical support varying properties of wood at the is another. Wood also helps the tree transport cellular level. and store nutrients and helps it defend itself against injury and insect attack. Among conifer species, these various functions are performed by different types of wood in the same tree. “In softwoods, 93 percent of the cells are responsible for mechanical and hydraulic support,” says Gartner. That is, they both help the tree transport water and help it stand upright. These cells are called tracheids. The remaining 7 percent of cells, called parenchyma cells, store nutrients and sugars and provide the tree’s defenses against disease and injury. Structural support provided by the tracheid cells is not uniform—it gets better as the wood grows out from the slender pith at the very center. Tracheid cells in the newer wood, added in yearly growth rings just under the bark, are thicker-walled than are those closer in, and so they provide better mechanical support. They also transport water better under ordinary conditions (although less well in drought conditions). For these and other reasons, a tree’s wood varies quite a lot in mechanical and structural properties. These differences are of great interest to manufacturers of wood products, because for almost every application, the more uniform the structural characteristics of the raw material, the better the quality of the product. Gartner is trying a variety of experiments to find out why a tree produces the types of wood it does, and why these types appear when they do in the life of the tree. Her work could ultimately lead to silvicultural strategies to fine-tune tree growth to produce more wood with a particular set of qualities—making it possible to cultivate raw material targeted toward a particular product. She is investigating, among other things, the formation of sapwood—the outer shell of wood under the bark— to which a growth ring is added each year. A mature Douglas-fir tree carries about 40 years’ worth of sapwood, or about 40 years’ worth of growth rings, Sapwood measured in from the outside. Deeper within the tree are older rings, which Heartwood have lost their physiological functionJuvenile wood ing and have been transformed into heartwood. Ponderosa pines maintain Mature wood their sapwood much longer than Douglas-firs, about 200 years. How does sapwood function in the life of a tree? “Different tree species have enormous variability in the amount of sapwood they have,” says Gartner. “But why do trees have the amount of sapwood they do? How much sapwood is needed to transport the water? Is there some other service sapwood is providing to the tree?” Because most of the water in a tree is transported by its sapwood, “the amount of sapwood in a tree is directly tied to how much water the tree can transport,” says Gartner. However, as we have seen, sapwood of different ages varies in its water-transport capability. Sapwood is also important in holding the tree up, and that represents a tradeoff in water transport: “The strongest cells for mechanical support are the ones least capable of transporting water in drought conditions.” All a tree’s growth functions are extremely dependent on the environment in which the tree is grown, says Gartner. “Soil, rainfall, insect populations, wind, sunshine, slope, aspect—all these are related to the tree’s structure and function.” Gartner’s work is aimed at clarifying and quantifying these relationships. 43 44 Leaf area, for instance, is a major indicator of many growth functions. A tree’s capacity to transport water is directly related to leaf area, because it is from the leaves (needles), that water evaporates. “How much leaf area is there in proportion to sapwood volume? If there are more leaves, is there more sapwood? What is the relationship between sapwood volume and root area?” To help answer these questions, she is drawing not only on her own measurements but on a large body of research by College of Forestry colleagues Barbara Bond, Dick Waring, and Doug Maguire, among others. In another line of inquiry, Gartner is studying juvenile wood, a littleunderstood component of softwood species. As the name implies, juvenile wood is the first wood a tree grows, and so there is more of it in younger trees. The trunk of a typical 15-year-old Douglas-fir tree is entirely composed of juvenile wood. At age 65, that same tree will contain perhaps 40 percent juvenile wood. The proportion will become smaller over the years as the tree keeps adding mature wood at the outside, although juvenile wood continues to grow at the tip. Thus, there is juvenile wood at the heart of every softwood tree, and this wood is structurally very different from the mature wood added later. Juvenile wood is less dense, and its cellular structure is weaker. The tiny fibers in its cell walls, called microfibrils, are arranged at a 45-degree angle, diagonal to the cell. In mature wood, the microfibrils are lined up along the length of the cell. “Imagine taking hold of both ends of a Slinky and pulling the whole thing apart,” says Gartner, “and then just pulling on a short stretch of the coil. The short stretch of metal doesn’t give nearly as much. That’s like the difference in strength between mature and juvenile wood.” Juvenile retains its weaker properties even as the tree grows old. When most harvested trees were taken from older forests, the presence of juvenile wood was of little concern. But these days, trees for structural wood products tend to come from younger, planted forests. They are harvested at a younger age than in years past: 60, 50, or even 40 years. “As rotation ages get shorter,” says Gartner, “trees are harvested when they’re smaller, and they contain a larger proportion of juvenile wood.” That can present a problem for wood quality. “It’s a common complaint that studs aren’t what they used to be,” says Gartner. “They aren’t as strong, they warp—the reader will know all about that.” Gartner is trying to determine how juvenile wood is formed, when it stops being produced, and what function it performs for the tree. Her early findings suggest that juvenile wood may be especially good at protecting the young tree and the tree tip from drought. “Seedlings don’t have much water storage capacity, so they are, in effect, in a drier environment than a mature tree growing nearby.” Gartner conducted measurements and found that, under dry conditions, juvenile wood conducts water to the top of a tree better than mature wood does. “So we may find that the tree needs a certain proportion of juvenile wood” to help it survive and grow in a variety of environmental conditions. “If we can find out why the plant is making juvenile wood,” Gartner says, “then we may find silvicultural ways to hasten the maturing process,”— or, alternatively, find good reasons to let the tree pursue its own maturing strategies. Ultimately, Gartner’s research will help silviculturists better understand how certain manipulations of a site will affect the quality of the wood in the trees growing there. Her findings will help managers encourage trees to produce more of the type of wood desired for the final product, or produce it sooner. 45 MAKING NEWER, STRONGER MATERIALS BY MIMICKING NATURE “Making composites is a way of taking a natural material—wood—and finding out how to make the best use of its attributes. It’s not just using it, but making something new from it.” C 46 onsider a bone. On the outside, its shape perfectly matches its function. Inside, it has cells of different kinds, oriented in different directions. A femur isn’t cut from a uniform sheet Phil Humphrey uses an of material called “bone.” instrument specially developed to test adhesives. “The internal structures of bones or trees or insect shells are elaborate—they involve complex mixes of cells of different types and different orientations,” says Philip Humphrey, associate professor of Forest Products at Oregon State University. Humphrey believes the concept of bone structure will someday lead to a revolution in the materials used in buildings, cars, and even aircraft. Trees, like bones, are sophisticated pieces of natural engineering. Each cell is shaped and oriented to perform a specific function. Cutting a 2 by 4 is thus a rather inefficient way of using a tree’s cells. “When we cut a board, we violate the tree’s structure and end up with a product which is highly variable. As a result, we have to be conservative in estimating how much load it can bear.” Humphrey’s research could eventually lead not only to savings in manufacturing costs, but to the development of more-effective materials that are also kinder to the environment. These improvements could come about through a shift from using metals to using wood composites for a wide range of applications. Currently, Humphrey is looking for ways to take advantage of wood’s natural strength by efficiently arranging the fibers in composites—matching form to function as elegantly as bones do. But Humphrey didn’t grow up expecting to be a scientist. He spent his teen years in England building clavichords, lutes, and harps. Learning about wood at university, he thought, would help him make better musical instruments. Although he soon found the research itself exciting, his early interests haven’t been wasted: “Designing and making things is a good foundation for being creative in research.” Humphrey’s plans for the future have emerged from his experience with traditional wood composites. Composites are made from fibers, flakes, wafers, or strands of wood bonded with small amounts of glue in processes involving both heat and pressure. “Making composites,” Humphrey points out, “is a way of taking a natural material—wood—and finding out how to make the best use of its attributes. It’s not just using it, but making something new from it.” When Humphrey began his career, little was known about the physics of making composites. His doctoral work led to the development of mathematical models that described changes in heat and gas movement during the wood–adhesive bonding process. This work puts the manufacture of wood composites on a scientific footing. “The physics is very complicated,” Humphrey explains. “It’s important to know the speed at which the bonds develop strength and how the fibers squeeze together.” If these processes are not understood, the changes that occur with heat and pressure can cause so much internal stress that the panels are damaged or blown apart. To examine these changes, Humphrey has developed an automated bonding evaluation system (ABES) that measures the effects of time, temperature, and pressure on the development of bonding strength. In Humphrey’s laboratory, elegantly constructed machines line the benches. Each of these miniature, automated gadgets tests some aspect of wood or glue strength. To test a bond, Humphrey glues together the ends of two wafers, each about half the size of a Popsicle stick, and punches some numbers into a laptop: “Let’s try 40 seconds at 110 degrees C.” Inserting the dry end of each stick into a small clamp, he flips a switch on the ABES, and the miniature pressing plates move to squeeze and heat the glued connection. In 40 seconds, the heating stops and the pressure is released. Gently, the clamps tug the sticks apart. Almost immediately, the bond fails and the sticks separate with a little hiss. A graph on the computer records the action. Each of these tests produces new data on heat or gas movement within a tiny subdivision of the bond, as well as measuring its strength. Because each property is affected by every other factor, the data points multiply fast. “We’re looking at the bond’s hygro-thermo-visco-elastic properties,” Humphrey explains. “That is, how heat, moisture, and pressure affect the speed of strength development.” 47 48 The interest is not just academic. In the wood-products industry, panels are produced in continuous presses costing $150 million that turn out the equivalent of about twenty 4- by 8-foot panels a minute. Consequently, production speed is critical. Humphrey’s mathematical models of the intricacies of bonding behavior and composite pressing aim to improve the efficiency of these machines. It is the prospect of developing revolutionary new products, however, that excites Humphrey the most—products inspired by bones, trees, and insect shells. Like natural structures, the new products would have both a specific external shape and a complex internal structure. Envisioning such products is a form of biomimetics—borrowing ideas from nature. “We’re not copying the bones, but we’re using the philosophy of bones to control shape and to micromanage internal structure. We use mathematical models both to identify what we should make and to find ways of making it.” The new products would overcome the problem of passive fibers in existing wood-based composites; the fibers fill space, but their particular strengths aren’t used efficiently. No matter what fibers are used, their arrangement is crucial. “The challenge is to assemble the fibers so they work for us. They need to bond in such a way that each contributes to the strength and stiffness of the product.” It’s an awareness of these shortcomings that inspires Humphrey’s goals for the future; what’s been learned from conventional composites will help with the formulation of new ones. Eventually, new products from natural fibers could replace some of the load-bearing parts used in aircraft and other products. Each piece would be individually designed, with computers reconfiguring the same machines to produce different parts. “With this new approach, we’re aiming for products highly tailored to particular uses— products that are environmentally better and more efficient than other materials such as aluminum alloys,” says Humphrey. “What we’ll be forming are objects designed to perform very specific functions very efficiently, rather than commodity products which can be used in a lot of situations with only moderate efficiency.” Humphrey is particularly attracted by the idea of creating substitutes for the metal alloys used in planes and cars. “The environmental impact of using alloys is great. Smelting ore uses large amounts of energy and produces toxic wastes. Composites from natural fibers are much more environmentally friendly and can be assembled to perform as well or better structurally.” Developing these new products is more than just a dream. Humphrey’s group has already created prototypes in the lab, and initial demo products might include a load-bearing part of a car suspension or steering system. Ultimately, the goal is to make the most efficient use possible of natural resources. “If we’re going to use wood from forests, we’re morally bound to use it efficiently.” 49 WOOD AND PLASTIC: EACH GIVES SOMETHING TO THE OTHER “If we’re going to provide the standard of living people want with the resource base available, we’re going to have to do more with less. Using recycled plastic and recycled wood to make new materials and new products is a way to achieve that.” W 50 ood is not usually thought of in connection with car manufacturing, but the next time John Simonsen: improving the performance of wood-plastic composites. you’re in a Ford Thunderbird, notice the little shelf on which you rest your elbow. It’s made of wood. More precisely, it is made of a material called a wood-plastic composite. More and more, nonstructural products like car door panels and trim, home window frames, and porch railings are being made from plastic mixed with ground-up bits of wood. Both the plastic and the wood often come from recycled materials—discarded wooden pallets and plastic milk jugs. Combining these materials offers a way to reduce waste of natural resources, make more use of recycled materials, and fill certain market niches better than either pure wood or pure plastic materials. Wood-plastic composites, says John Simonsen, have lately become a hot marketplace item as new products and new applications have been developed in the last several years. An industry trade journal estimates that the total production of wood-plastic composites tripled from 1997 to 1999. “It’s still a small part of the market,” says Simonsen, “but it’s growing at about 40 percent a year.” Simonsen, a professor in the Department of Forest Products, is a chemist whose research is helping to make wood-plastic composites stronger, stiffer, and easier and cheaper to manufacture. The idea of adding wood to plastic to enhance its structural properties is not new. Bakelite, the very first commercially developed plastic, had wood fiber as part of its mix back in 1907. Over the years, many materials have been added to plastic as “filler,” but wood is a particularly good one, says Simonsen. Wood fiber adds strength and stiffness to plastic. It makes the final product lighter in weight and, in some cases, faster to manufacture. For its part, plastic adds something to wood: resistance to rot and insect damage, and ease of manufacturing. Wood-plastic composites are best suited for nonstructural products like panels, molding, window frames, picnic tables, and highway signposts. They turn up in some less-likely products, too, like drumsticks—the musical variety. “I’ve heard that the all-plastic ones are too floppy and all-wood ones are too dull-sounding,” says Simonsen, “but that these are just right.” Composites do not work well for structural uses, and for that reason they’ll probably never replace dimension lumber, Simonsen says. The closest thing to a structural product commercially available now is wood-plastic composite decking. It resists mold, rot, and staining (although it is not impervious), but it can’t compete with real lumber for strength and stiffness. Try to use it like conventional lumber, and you’ll get “creep”—the propensity of plastic to be malleable; to sag, twist, and otherwise lose its structural integrity. As a chemist, Simonsen is interested in the interface between plastic and wood, two very different materials: “Scientifically, that’s where the action is.” In general, wood attracts water (it’s hydrophilic), while plastics repel water (they’re hydrophobic). So making composites is “like mixing oil and water,” Simonsen says. “You have to get them to stick together, and they don’t easily do that.” Simonsen and his colleague, Kaichang Li (Forest Products), are working on ways to create hybrid molecules, half wood and half plastic, in the lab. Adding small amounts of these molecules, called “compatibilizers,” to the composite mixture helps the ingredients blend better. It also greatly improves the strength and stiffness of the product. Molecules of this sort have been developed in other laboratories to help blend different types of plastics, says Simonsen. “We’re taking molecules of polypropylene and ‘grafting’ another chemical to it. For reasons not well understood, these hybrid molecules make wood and polypropylene mix more easily.” Another interesting problem is how to make a pure plastic surface material stick to a wood-polymer base. Molded countertops and similar products are now made with pure wood bases. Simonsen and his Forest Products colleagues are working on better ways to bond the tops to the bottoms. “The adhesion is done in a hot press, and now the press tends to melt the 51 plastic.” The work involves both adhesive chemistry and trials of different application processes. Wood-plastic composites, says Simonsen, are a very practical way to improve the stewardship of natural resources. “If we’re going to provide the standard of living people want with the resource base available, we’re going to have to do more with less. Using recycled plastic and recycled wood to make new materials and new products is a way to achieve that.” 52 THE HUMAN FACTOR Deciphering people’s feelings about and attitudes toward the land may be the most difficult as well as the most important task facing forest managers in this new century. F orest managers know a lot about how forests function, and their knowledge is growing. They can even make reasonable projections about what a forest will look like in the future if certain management practices are followed today. What they cannot predict with much success is how people will respond to those management decisions. The human factor can make all the dif- Bruce Shindler: What do people ference in whether a resource manager can carry find acceptable and appropriate on forest lands? out forest practices successfully. What makes a particular forestry practice acceptable or not? Bruce Shindler, associate professor in the Department of Forest Resources, is using social-science research methods to get at this most elusive of questions: What do people find acceptable and appropriate on forest lands, and what factors influence their judgment? “There is a gap in understanding of the full range of social factors and how they fit into natural-resource management,” Shindler says. This gap has caused no end of trouble between forest managers—both public and private—and the people to whom their decisions matter. Natural-resource debates have been called “wicked” problems because they are too big and complex to be solved by top-down technical analysis. “Wicked problems are interrelated ones of organized complexity that cannot be solved in isolation from one another, but also hinge on differing sociopolitical values that clash in the political arena,” wrote Shindler and coauthor Lori Cramer (OSU Department of Sociology) in a recent article in the Western Journal of Applied Forestry. But it is not enough to throw up the hands, as frustrated forest managers have been tempted to do, and declare such problems unsolvable. Social-science 53 54 techniques are proving useful in understanding the patterns that exist in public attitudes and citizen behaviors about natural-resource management. Although not as reliable as measurements of ecological processes, says Shindler, social assessments can provide valuable information about the various “publics” managers encounter. A better understanding of how and why people accept—or reject—natural-resource management strategies will help resource professionals make more effective, and ultimately more durable, decisions. In his newest study, Shindler and colleague Mark Brunson of Utah State University are evaluating public responses to certain ways of treating fuels in fire-prone forest and range settings, particularly lands at the urban fringe. They are using surveys, focus groups, interviews, and other social-science research methods to illuminate how, and under what circumstances, people decide whether prescribed fire, thinning, mechanical mowing, and other treatments are acceptable or not. Because the human dynamic is complicated, decision pathways are not easily elucidated, Shindler says. “Nor can we count on social processes being replicated. You can’t just make up a checklist and feed it into a computer model.” In fact, this common assumption of scientific methodology may be part of the problem when it comes to the human factor. Researchers and managers sometimes assume that good science alone will guarantee a good forest plan. But many wicked natural resource problems hinge on managers’ and citizens’ different ways of seeing the world. “For example, ‘landscape,’ to a forester or an ecologist, usually means a place where the traditional boundary of the forest stand or watershed has been expanded to take in a range of biophysical and geological processes,” Shindler says. “But to lay people, a landscape is often a particular place with well-defined boundaries, one that has meaning for them apart from its physical processes. For example, forest places often have an identity among local communities, and people are concerned about maintaining access to the site for the activities they currently enjoy.” In other words, people hold powerful feelings about a place that a mere biophysical definition of “landscape” does not begin to capture. These personal forms of knowledge about place are hard to incorporate into management plans based on scientific and rational knowledge. Traditional landmanagement agencies often have difficulty knowing what to do with such “squishy” information, says Shindler. A one-size-fits-all management plan that does not take people’s personal meanings into account runs a high risk of being judged unacceptable by those people most affected by it, and thus becoming the target of extended debate. For that reason, an awareness of context is crucial, says Shindler. “Not only the spatial context—how big an area are we managing?—or the temporal—what will this landscape produce over time?—but just as importantly, the social and political context.” Contextual questions involve the unique characteristics of the place, how the land has been managed over time, and the expectations of the community for allocation of the resources. For example, a management plan is more likely to be acceptable to the public if its framers consider questions like these: Who lives nearby, and who lives farther away, and how do their interests merge or diverge? How will decisions about the forest’s future be made, and by whom? What are the risks and costs of treatment alternatives? Who wins and who loses in different management scenarios? The quality of the decision-making process is also important in whether decisions are acceptable to the public, says Shindler. If citizens perceive that the process is open and fair, that they have enough information to make real choices, that their concerns are taken seriously, and that decisionmakers are genuine and trustworthy, then they are more likely to accept the decisions that emerge. It may seem that the natural resource management arena is nothing but a battleground. “As scientists studying the social side of resource management, I sometimes feel we cast ourselves in a doomsday role, pointing out all the problems,” says Shindler with a smile. “But we’re also finding many examples of positive interactions between citizens and resource managers. We’ve found common elements across settings that are helping us establish a core set of criteria for public acceptance of management practices.” Some of those successful elements were identified by Shindler and colleague Julie Neburka in a recent Journal of Forestry article on public participation in forest planning. Among them are selecting committed participants, encouraging full group interaction, clearly defining the group’s mission, making the decisionmaker a regular and full participant, disseminating current and reliable information, defining key terms, answering questions promptly and directly, and tending to such “care and feeding” touches as providing drinks and snacks at long meetings to show participants that their efforts are valued. Deciphering people’s feelings about and attitudes toward the land may be the most difficult as well as the most important task facing forest managers in this new century. From a research perspective, social scientists like Bruce Shindler are playing a significant role in helping land managers arrive at lasting, acceptable decisions. 55 E S E A R C H R F O R E S O U R C E S R 56 A glance at the graph of research expenditures on the following page shows that the bulk of the Forest Research Lab expenditure comes from grants and contracts from funding agencies and organizations outside the University. Many of these grants are awarded to faculty members through competitive selection, and for most of them the competition is stiff. FRL researchers have been consistently rated first among those at all U.S. universities in obtaining outside funding for forestry and forest products research. Success in this arena makes the FRL a vital center for all kinds of research in many forestry-related disciplines. All this research ultimately contributes to better stewardship and sustainability of our nation’s forests. Of FRL research expenditures from these outside grants and contracts, about 65 percent derives from Federal sources, and about half of that amount comes from the U.S. Department of Agriculture. The U.S. Department of the Interior and the National Science Foundation are the other principal Federal contributors to FRL grant-and-contract research. Other funds are provided by the National Aeronautics and Space Administration (NASA), the U.S. Department of Energy, and the U.S. Environmental Protection Agency. FRL research is directly supported by Federal appropriations under the McIntire-Stennis Cooperative Forestry Research Act, which provides research funds to states on the basis of a formula that considers forest land area, annual timber harvest, and nonfederal funds provided for research. FRL research also is supported by a direct appropriation in the State’s biennial budget. The forest-products industry supports FRL research through the Oregon Forest Products Harvest Tax, levied on all timber harvested in Oregon and dedicated in part to FRL research. Individual companies participate in FRL research also through industry memberships in the FRL’s several research cooperatives and through direct research contracts. The State of Oregon and the Federal government also participate beyond their direct appropriations through membership of some natural-resource agencies in research cooperatives. These various sources of funds reflect the diverse research concerns of the FRL’s broad constituency. But our stakeholders share a common concern about good stewardship of forests. The starting point for good stewardship is good science. It is that essential fact that gives our research programs shape and purpose. FUNDING SOURCE 155 1998-99 122 9 BY 6 3 0 State Harvest Tax Federal Grants, Gra ts, Research Contracts, Forest Endowment Operations EXPENDITURES INCOME SOURCE 1998–99 1999–00 State Appropriation 1,949,715 (10%) 2,515,000 (12%) Oregon Forest Products Harvest Tax 2,306,500 (11%) 2,384,000 (12%) 681,000 (3%) 731,000 (4%) 12,779,525 (62%) 11,467,809 (57%) 2,813,306 (14%) 2,964,000 (15%) Federal Appropriation (McIntire-Stennis) Grants, Contracts, Endowment Research Forest Operations TOTAL 20,530,046 20,061,809 RESEARCH EXPENDITURES Expenditures (millions of dollars) 1999-00 57 U B L I C A T I O N S P O R E S T R Y F FOREST REGENERATION Aagaard, JE, KV Krutovskii, and SH Strauss. 1998. RAPDs and allozymes exhibit similar levels of diversity and differentiation among populations and races of Douglas-fir. Heredity 81: 69–78. (For. Res. Lab.) Aagaard, JE, KV Krutovskii, and SH Strauss. 1998. RAPD markers of mitochondrial origin exhibit lower population diversity and higher differentiation than RAPDs of nuclear origin in Douglas fir. Molecular Ecology 7: 801–812. (For. Res. Lab.) Adams, WT, and T Anekonda. 2000. Genetics of dark respiration and its relationship with drought hardiness in coastal Douglas-fir. Termochimica Acta 349: 69–77. Adams, WT, J Zuo, JY Shimizu, and JC Tappeiner. 1998. Impact of alternative regeneration methods on genetic diversity in coastal Douglas-fir. Forest Science 44: 390–396. (For. Res. Lab.) Ahmed, AA, AH Mohamed, AM Abou-Douh, ME Hassan, F Darwish, and JJ Karchesy. 1999. A new chromene glucoside from Ageratum conyzoides. Planta Medica 65: 171–172. Anekonda, TS, and WT Adams. 2000. Genetics of dark respiration and its relationship with drought hardiness in coastal Douglas-fir. Thermochimica Acta 349: 69–77. Anekonda, TS, WT Adams, and SN Aitken. 2000. Cold hardiness testing for Douglas-fir tree improvement programs: Guidelines for a simple, robust, and inexpensive screening method. Western Journal of Applied Forestry 15(3): 129–136. Anekonda, TS, WT Adams, SN Aitken, DB Neale, KD Jermstad, and NC Wheeler. 2000. Genetics of cold hardiness in a cloned fullsib family of coastal Douglas-fir. Canadian Journal of Forest Research 30: 837–840. Anekonda, TS, RS Criddle, M Bacca, and LD Hansen. 1999. Contrasting adaptation of two Eucalyptus subgenera is related to differences in respiratory metabolism. Functional Ecology 13: 75–682. Anekonda, TS, RS Criddle, MJ Bacca, and LD Hansen. 2000. Influence of age on dark respiration in eucalypts. Thermochimica Acta 343: 11–17. Aubry, CA, WT Adams, and TD Fahey. 1998. Determination of relative economic weights for multitrait selection in coastal Douglas-fir. Canadian Journal of Forest Research 28: 1164–1170. Bailey, JD, C Mayrsohn, PS Doescher, E St Pierre, and JC Tappeiner. Forest Regeneration 1998. Understory vegetation in old and young Douglas-fir forests of western Oregon. Forest Ecology and Management 112: 289–302. (For. Res. Lab.) Baldocchi, DD, BE Law, and PM Anthoni. 2000. On measuring and modeling energy fluxes above the floor of a homogeneous and heterogeneous conifer forest. Agricultural and Forest Meteorology 102: 187–206. Balduman, LM, SN Aitken, M Harmon, and WT Adams. 1999. Genetic variation in cold hardiness of Douglas-fir in relation to parent tree environment. Canadian Journal of Forest Research 29: 62–72. Becker, P, FC Meinzer, and SD Wullschleger. 2000. Hydraulic limitation of tree height: A critique. Functional Ecology 14: 4–11. Belokon, YS, DV Politov, MM Belokon, KV Krutovskii, OM Maluchenko, and YP Altukhov. 1998. Genetic differentiation in white pines of the section strobus: isozyme analysis data. Doklady Biological Sciences 358: 81–84. (Translated into English from the Proceedings of Russian Academy of Sciences: Doklady Akademii Nauk (Russian) 358: 699–702.) Birchler, T., RW Rose, A Royo, and M Pardos. 1998. La planta ideal: Revision del concepto, parametros definitorios e implementacion practica. Investigacion Agraria. Sistemas y Recursos Forestales 7(1&2): 109–121. (In Spanish.) Bond, BJ, and KL Kavanagh. 1999. Stomatal behavior of four woody species in relation to leaf-specific hydraulic conductance and threshold water potential. Tree Physiology 19: 503–510. (For. Res. Lab.) Bond, BJ, and MG Ryan. 2000. Comment on “Hydraulic limitation of tree height: A critique,” by Becker, Meinzer and Wullschleger. Functional Ecology 14: 135–140. (For. Res. Lab.) Brandeis, TJ, EC Cole, and M Newton. 1999. Underplanting and competition in thinned coastal Douglasfir, pp. 15–28 in Healthy Forests for the 21st Century: New Technologies in Integrated Vegetation Management. Proceedings of the 20th Annual Forest Vegetation Management Conference, January 1999, Redding CA. Forest Vegetation Management Conference, Redding CA. Brunner, AM, R Mohamed, R Meilan, LA Sheppard, WH Rottman, and SH Strauss. 1998. Genetic engineering of sexual sterility in shade trees. Journal of Arboriculture 24: 263–273 (For. Res. Lab.) Caldwell, BA, RP Griffiths, and P Sollins. 1999. Soil enzyme 59 Forest Regeneration response to vegetation disturbance in two lowland Costa Rican soils. Soil Biology and Biochemistry 31: 1603–1608. Caldwell, BA, A Jumpponen, and JM Trappe. 2000. Utilization of major detrital substrates by darkseptate, root endophytes. Mycologia 92(2): 230–232. Chaide-Gonzales, J, RF GonzalezLaredo, and JJ Karchesy. 1998. Stilbene xyloside and decaffeoyl ester of glucose from ocean spray bark. Ubamari 44: 9–13. Chen, J, RF Gonzalez-Laredo, and JJ Karchesy. 2000. Some minor diarylheptanoid glycosides of Alnus rubra bark. Phytochemistry 53: 971–973. Clearwater, MJ, FC Meinzer, JL Andrade, G Goldstein, and NM Holbrook. 1999. Potential errors in measurement of nonuniform sap flow using heat dissipation probes. Tree Physiology 19: 681–687. Cole, EC, M Newton, and A Youngblood. 1999. Regenerating white spruce, paper birch, and willow in south-central Alaska. Canadian Journal of Forest Research 29: 993–1001. (For. Res. Lab.) 60 Cromack, J, Jr, RE Miller, OT Helgerson, RB Smith, and HW Anderson. 1999. Soil carbon and nutrients in a coastal Oregon Douglas-fir plantation with red alder. Soil Science Society of America Journal 63: 232–239. DiFazio, SP, MV Wilson, and NC Vance. 1998. Factors limiting seed production of Taxus brevifolia (Taxaceae) in western Oregon. American Journal of Botany 85: 910–918. (For. Res. Lab.) DiFazio, SP, S Leonardi, S Cheng, and SH Strauss. 1999. Assessing potential risks of transgene escape from fiber plantations, pp. 171– 176 in Gene Flow and Agriculture: Relevance for Transgenic Crops, PW Putnam, ed. Symposium Proceedings No. 72, British Crop Protection Council, Farnham, UK. (For. Res. Lab.) Doede, DL, and WT Adams. 1998. The genetics of stem volume, stem form, and branch characteristics in sapling noble fir. Silvae Genetica 47: 177–183. ~ Dogvan, B, AG Ozer, AG Gülbaba, E Veliogv lu, AH Doerksen, and WT Adams. 1998. Inheritance and linkage of allozymes in black pine (Pinus nigra Arnold), pp. 249–256 in The Proceedings of the International Symposium on In Situ Conservation of Plant Genetic Diversity, 4– 8 November, Belek, Antalya, Turkey, N Zencirci, A Kaya, Y Anikster, and WT Adams, eds. Central Research Institute for Field Crops, Ankara, Turkey. Fitzgerald, SA. 1999. Prepare the site with prescribed fire. Tree Farmer 5/6. Franklin, JF, LA Norris, DR Berg, and GR Smith. 1999. The history of Forest Regeneration DEMO: An experiment in regeneration harvest of Northwestern forest ecosystems. Northwest Science 73: 3–11. (For. Res. Lab.) Fredrickson, E, and M Newton. 1998. Maximizing Efficiency of Forest Herbicides in the Sierra Nevada and Oregon: Research Background and User Guide. Research Contribution 19, Forest Research Laboratory, Oregon State University, Corvallis. (For. Res. Lab.) ~ Gülbaba,, AG, E Veliogv lu, AG Ozer, B Dogvan, AH Doerksen, and WT Adams. 1998. Population genetic structue of Kazdagvi fir (Abies equitrojani Aschers. et sint), a narrow endemic to Turkey: Implications for in-situ conservation, pp. 271–280 in The Proceedings of the International Symposium on In Situ Conservation of Plant Genetic Diversity, 4–8 November, Belek, Antalya, Turkey, N Zencirci, A Kaya, Y Anikster, and WT Adams, eds. Central Research Institute for Field Crops, Ankara, Turkey. Haase, DL, J Trobaugh, and R Rose. 1999. Preliminary results of field trials to assess performance of Douglas-fir container stock grown with fertilizer-amended media, pp. 82–86 in Healthy Forests for the 21st Century: New Technologies in Integrated Vegetation Management. Proceedings of the 20th Annual Forest Vegetation Management Conference, January 1999, Redding California. Fores Vegetation Management Conference, Redding CA. Han, K-H, R Meilan, C Ma, and SH Strauss. 2000. An Agrobacterium tumefaciens transformation protocol effective on a variety of cottonwood hybrids (genus Populus). Plant Cell Reports 19: 315–320. (For. Res. Lab.) James, RR, SP DiFazio, AM Brunner, and SH Strauss. 1998. Environmental effects of genetically engineered woody biomass crops. Biomass and Bioenergy 14: 403– 414. (For. Res. Lab.) Jeong, S-C, and DD Myrold. 1999. Genomic fingerprinting of Frankia microsymbionts from Ceanothus copopulations using repetitive sequences and polymerase chain reactions. Canadian Journal of Botany 77: 1220–1230. Johannisson, C, DD Myrold, and P Högberg. 1999. Retention of nitrogen by a nitrogen-loaded Scotch pine forest. Soil Science Society of America Journal 63: 383–389. Joseph, G, and RG Kelsey. 1999. Growth of Douglas-fir and ponderosa pine seedlings with foliar applications of methanol and ethanol. Western Journal of Applied Forestry 14: 183–185. Joseph, G, and RG Kelsey 2000. Physiology and growth of Douglas-fir seedlings treated with ethanol 61 Forest Regeneration solutions. Plant Science 150: 191– 199. Kelsey, RG, G Joseph, and EA Gerson. 1998. Ethanol synthesis, nitrogen, carbohydrates, and growth in tissues from nitrogen fertilized Pseudotsuga menziesii (Mirb.) Franco and Pinus ponderosa Dougl. ex Laws. seedlings. Trees 13: 103–111. (For. Res. Lab.) Ketchum, JS, and R Rose. 2000. Interaction of initial seedling size, fertilization, and vegetation control, pp. 63–68 in Proceedings of the California Forest Vegetation Management Conference, 18–20 January 2000, Redding, California. Forest Vegetation Management Conference, Redding CA. Ketchum, JS, R Rose, and B Kelpas. 1999. Weed control in spring and summer after fall application of sulfometuron. Western Journal of Applied Forestry 14: 80–85. (For. Res. Lab.) Ketchum, JS, R Rose, and B Kelpas. 2000. Comparison of adjuvants used in fall-release herbicide mixtures and forest site preparation. Tree Planters’ Notes 49(3): 66–71. 62 Krutovskii, KV, SY Erofeeva, JE Aagaard, and SH Strauss. 1999. Simulation of effects of dominance on estimates of population genetic diversity and differentiation. Journal of Heredity 90: 499– 502. (For. Res. Lab.) Lawrence, RL, and WJ Ripple. 1999. Calculating change curves for multitemporal satellite imagery: Mount St. Helens 1980–1995. Remote Sensing of Environment 67: 309–319. (For. Res. Lab.) Meilan, R, K-H Han, C Ma, RR James, JA Eaton, BJ Stanton, E Hoien, RP Crockett, and SH Strauss. 2000. Development of glyphosate-tolerant hybrid cottonwoods. Tappi Journal 83 (1): 164–166. Meinzer, FC, G Goldstein, AC Franco, M Bustamante, E Igler, P Jackson, L Caldas, and PW Rundel. 1999. Atmospheric and hydraulic limitations on transpiration in Brazilian cerrado woody species. Functional Ecology 13: 273–282. Monleon, VJ, M Newton, C Hooper, and JC Tappeiner II. 1999. Tenyear growth response of young Douglas-fir to variable density varnishleaf ceanothus and herb competition. Western Journal of Applied Forestry 14: 208–213. (For. Res. Lab.) Morrell, PD, and JJ Morrell. 1999. Strongmen of the underground. The American Biology Teacher 6(1): 54–55. Myrold, DD. 1999. Nitrogen transformations and management interactions in forests, pp. 106–113 in Proceedings of the Pacific Northwest Forest and Rangeland Soil Organism Symposium, March 17–19, Forest Regeneration 1998, Corvallis, Oregon, RT Meurisse, WG Ypsilantis, and C Seybold, eds. General Technical Report PNW-GTR-461,USDA Forest Service, Portland OR. Newton, M. 1999. Low-volume waving wand applications in forestry, pp. 93–95 in Healthy Forests for the 21st Century: New Technologies in Integrated Vegetation Management. Proceedings of the 20th Annual Forest Vegetation Management Conference, January 1999, Redding, California. Forest Vegetation Management Conference, Redding CA. Newton, M. 2000. Management strategies and objectives for successful reforestation planning, pp. 18–21 in Healthy Forests for the 21st Century: New Technologies in Integrated Vegetation Management. Proceedings of the 20th Annual Forest Vegetation Management Conference, January 1999, Redding, California. Forest Vegetation Management Conference, Redding CA. Newton, M, EC Cole, and J Robbins. 2000. Managing yield and wood quality in second-growth forests, pp. 53–59 in Healthy Forests for the 21st Century: New Technologies in Integrated Vegetation Management. Proceedings of the 20th Annual Forest Vegetation Management Conference, January 1999, Redding, California. Forest Vegetation Management Conference, Redding CA. Pyke, DA. 1999. Monitoring weed populations in biocontrol projects, pp. 39–42 in Weed Biocontrol: Extended Abstracts from the 1997 Interagency Noxious-Weed Symposium, 2–4 December 1997, Corvallis, Oregon, D Isaacson and M Brookes, eds. USDA Forest Service Report FHTET-98-12, Forest Health Technology Enterprise Team, Morgantown, WV. Pyke, DA, PH Smith, JM Patterson, KA Ticknor, JF Henson, and SD Warren. 1999. Selecting native plants using VegSpec. A Webbased expert system, pp. 159–160 in Proceedings of Symposium on Native Plants: Propagation and Planting, 9–10 December 1998, Corvallis, Oregon, R Rose and D Haase, eds. Nursery Technology Cooperative, Department of Forest Science, Oregon State University, Corvallis. Radosevich, S. 1998. Weed ecology and ethics. Weed Science 46: 642–646. (For. Res. Lab.) Ritchie, NJ, and DD Myrold. 1999. Geographic distribution and genetic diversity of Ceanothusinfective Frankia. Applications of Environmental Microbiology 65: 1378–1383. Ritchie, NJ, and DD Myrold. 1999. Phylogenetic placement of uncultured Ceanothus microsymbionts using 16S rRNA gene sequences. Canadian Journal of Botany 77: 1208–1213. 63 Forest Regeneration Robertson, GP, CD Coleman, CS Bledsoe, and P Sollins, editors. 1999. Standard Soil Methods for Long-Term Ecological Research. Oxford University Press, New York. Robertson, GP, P Sollins, BG Ellis, and K Lajtha. 1999. Exchangeable ions, pH, and cation exchange capacity, pp. 106–114 in Standard Soil Methods for Long-Term Ecological Research, GP Robertson, DC Coleman, CS Bledsoe, and P Sollins, eds. Oxford University Press, New York. Rose, R. 1999. Implementation of the target seedling concept. Vietnam Forestry Review 3/4: 17–22. (In Vietnamese.) Rose, R, JS Ketchum, and DE Hanson. 1999. Three-year survival and growth of Douglas-fir seedlings under various vegetation-free regimes. Forest Science 45: 117– 126. (For. Res. Lab.) Rose, R, A Royo, and DL Haase. 1999. Peltophorum dasyrachis seedling growth response to different levels of boron. Journal of Tropical Fruit Science 11(4): 832–845. 64 Rottmann, WH, R Meilan, LA Sheppard, AM Brunner, JS Skinner, C Ma, S Cheng, L Jouanin, G Pillate, and SH Strauss. 2000. Diverse effects of overexpression of LEAFY and PTLF, the poplar homolog of LEAFY/FLORICAULA, in transgenic poplar (Populus trichocarpa) and Arabidopsis. The Plant Journal 22: 235–245. (For Res. Lab.) Ryan, MG, BJ Bond, BE Law, RM Hubbard, D Woodruff, E Cienciala, and J Kucera. 2000. Transpiration and whole-tree conductance in ponderosa pine trees of different heights. Oecologia 124: 553–560. Scowcroft, PG, FC Meinzer, G Goldstein, PJ Melcher, and J Jeffrey. 2000. Moderating night radiative cooling reduces frost damage to Metrosideros polymorpha seedlings used for forest restoration in Hawaii. Restoration Ecology 8: 161–169. Sillett, SC, B McCune, JE Peck, TR Rambo and AL Ruchty. 2000. Dispersal limitations of epiphytic lichens result in species dependent on old-growth forests. Ecological Applications 10(3): 789-799. Skinner, JS, R Meilan, AM Brunner, and SH Strauss. 2000. Options for genetic engineering of floral sterility in forest trees, pp. 135– 153 in Molecular Biology of Woody Plants, SM Jain and SC Minocha, eds. Kluwer Academic Publishers, Dordrecht, The Netherlands. Smith, JE, KA Johnson, E Cázares. 1998. Mycorrhizal colonization of seedlings of Pinaceae and Betulaceae after spore inoculation with Glomus intraradices. Mycorrhiza 7: 279-285. Forest Regeneration Spicer, R, and BL Gartner. 1998. How does a gymnosperm branch (Pseudotsuga menziesii) assume the hydraulic status of a main stem when it takes over as leader? Plant, Cell and Environment 21: 1063– 1070. Spicer, R, and BL Gartner. 1998. Hydraulic properties of Douglasfir (Pseudotsuga menziesii) branches and branch halves with reference to compression wood. Tree Physiology 18: 777–784. Stratton, L, G Goldstein, and FC Meinzer. 2000. Stem water storage capacity and efficiency of water transport: Their functional significance in a Hawaiian dry forest. Plant, Cell and Environment 23: 99–106. Strauss, S, and R Meilan. 1998. TGERC: Tree Genetic Engineering Research Cooperative. AgBiotech News and Information 10(9): 305N–308N. (For. Res. Lab.) Strauss, SH, W Boerjan, J Cairney, M Campbell, J Dean, D Ellis, L Jouanin and B Sandberg. 1999. Forest biotechnology makes its position known. Nature Biotechnology 17: 1145. Strauss, SH, K Raffa, and P List. 2000. Ethics and genetically engineered plantations. Journal of Forestry 98(7): 48 (continued on 47). Tausend, PC, G Goldstein, and FC Meinzer. 2000. Water utilization, plant hydraulic properties and xylem vulnerability in three contrasting coffee (Coffea arabica) cultivars. Tree Physiology 20: 159– 168. Tausend, PC, FC Meinzer, and G Goldstein. 2000. Control of transpiration in three coffee cultivars: The role of hydraulic and crown architecture. Trees 14: 181–190. Traut, BH, and PS Muir. 2000. Relationships of remnant trees to vascular undergrowth communities in the western Cascades: A retrospective approach. Northwest Science 74(3): 212–223. Whalen, JK, PJ Bottomley, and DD Myrold. 2000. Carbon and nitrogen mineralization from soil organic matter fractions of agricultural and forest soils. Soil Biology Biochemistry 32: 1345– 1352. Wu, J, KV Krutovskii, and SH Strauss. 1998. Abundant mitochondrial genome diversity, population differentiation and convergent evolution in pines. Genetics 150: 1605–1614. (For. Res. Lab.) Wu, J, KV Krutovskii, and SH Strauss. 1999. Nuclear DNA diversity, population differentiation, and phylogenetic relationships in the California closed-cone pines based on RAPD and allozyme markers. Genome 42: 893–908. (For. Res. Lab.) 65 FOREST ECOLOGY, CULTURE, AND PRODUCTIVITY Acker, SA, WA McKee, ME Harmon, and JF Franklin. 1998. Long-term research on forest dynamics in the Pacific Northwest: A network of permanent forest plots, pp. 93–106 in Proceedings of Forest Biodiversity in North, Central, and South America and the Caribbean: Research and Monitoring, May 23–25, 1995, Washington DC, F Dallmeier and JA Comiskey, eds. Man and the Biosphere Series, The Parthenon Publishing Group, Inc., New York. Acker, SA, EK Zenner, and WH Emmingham. 1998. Structure and yield of two-aged stands on the Willamette National Forest, Oregon: Implications for green tree retention. Canadian Journal of Forest Research 28: 749–758. (For. Res. Lab.) Adam, MD, and JR des Lauriers. 1998. Observations of hummingbirds ingesting mineral-rich compounds. Journal of Field Ornithology 69: 257–261. Adam, MD, and JP Hayes. 1998. Arborimus pomo. Mammalian Species 593: 1–5. Adam, MD, and JP Hayes. 2000. Use of bridges as night roosts by bats in the Oregon Coast Range. Journal of Mammalogy 81: 402– 407. 66 Anthoni, PM, BE Law, and MH Unsworth. 1999. Carbon and water vapor exchange of an opencanopied ponderosa pine ecosystem. Agricultural and Forest Meteorology 95: 151–168. (For. Res. Lab.) Anthoni, PM, BE Law, MH Unsworth, RJ Vong. 1999. Variation of net radiation over heterogeneous surfaces: measurements and simulation in a juniper-sagebrush ecosystem. Agricultural and Forest Meteorology 102: 275–286. Bailey, JD, and JC Tappeiner. 1998. Effects of thinning on structural development in 40- to 100-yearold Douglas-fir stands in western Oregon. Forest Ecology and Management 108: 99–113. (For. Res. Lab.) Barroetavena, C, SD Gisler, DL Luoma, and RJ Meinke. 1998. Mycorrhizal status of the endangered species Astragalus applegatei Peck as determined from a soil bioassay. Mycorrhiza 8: 117–119. (For. Res. Lab.) Bettinger, P, K Boston, and J Sessions. 1999. Combinatorial optimization of elk habitat effectiveness and timber harvest volume. Environmental Modeling and Assessment 4: 143–153. (For. Res. Lab.) Bond, BJ, BT Farnsworth, RA Coulombe, and WE Winner. 1999. Foliage physiology and Forest Ecology, Culture, and Productivity biochemistry in response to light gradients in conifers with varying shade tolerance. Oecologia 120: 183–192. (For. Res. Lab.) Boone, RD, DF Grigal, P Sollins, RJ Ahrens, and DE Armstrong. 1999. Soil sampling, preparation, archiving, and quality control, pp. 3–28 in Standard Soil Methods for Long-Term Ecological Research, GP Robertson, DC Coleman, CS Bledsoe, and P Sollins, ed. Oxford University Press, New York. Butts, SR, and WC McComb. 2000. Associations of forest-floor vertebrates with coarse woody debris in managed forests of western Oregon. Journal of Wildlife Management 64: 95–104. (For. Res. Lab.) Carey, AB, CC Maguire, BL Biswell, and TM Wilson. 1999. Distribution and abundance of Neotoma in western Oregon and Washington. Northwest Science 73: 65–80. Carroll, C, RF Noss, and PC Paquet. 1999. Carnivores as focal species for conservation planning in the Rocky Mountain region. World Wildlife Fund Canada, Toronto. data to build and test spatial habitat models for the fisher in the Klamath region, USA. Conservation Biology 13: 1344–1359. Cazares, E, DL Luoma, MP Amaranthus, CL Chambers, and JF Lehmkuhl. 1998. Interaction of fungal sporocarp production with small mammal abundance and diet in Douglas-fir stands of the southern Cascade range. Northwest Science 73: 64–76. Chambers, CL, WC McComb, and JC Tappeiner II. 1999. Breeding bird responses to three silvicultural treatments in the Oregon Coast Range. Ecological Applications 9: 171–185. Christensen, Jr, NL, SV Gregory, PR Hagenstein, TA Heberlein, JC Hendee, JT Olson, JM Peek, DA Perry, TD Schowalter, K Sullivan, GD Tilman, and KA Vogt. 2000. Environmental Issues in Pacific Northwest Forest Management. National Academy Press, Washington DC. Carroll, C, PC Paquet, and RF Noss. 1999. Modeling carnivore habitat in the Rocky Mountain Region: A literature review and suggested strategy. World Wildlife Fund Canada, Toronto. Claridge, AW, JM Trappe, SJ Cork, and DL Claridge. 1999. Mycophagy by small mammals in the coniferous forests of North America: Nutritional value of sporocarps of Rhizopogon vinicolor, a common hypogeous fungus. Journal of Comparative Physiology B 169: 172–178. Carroll, C, WJ Zielinski, and RF Noss. 1999. Using presence-absence Cole, EC, WC McComb, M Newton, JP Leeming, and CL Chambers. 67 Forest Ecology, Culture, and Productivity 1998. Response of small mammals to clearcutting, burning, and glyphosate application in the Oregon Coast Range. Journal of Wildlife Management 62: 1207– 1216. (For. Res. Lab.) Cole, EC, WC McComb, M Newton, CL Chambers, and JP Leeming. 1999. Response of small mammal and amphibian capture rates to clearcutting, burning, and glyphosate application in the Oregon Coast Range, pp. 103– 105 in Healthy Forests for the 21st Century: New Technologies in Integrated Vegetation Management. Proceedings of the 20th Annual Forest Vegetation Management Conference, January 1999, Redding CA. Forest Vegetation Management Conference, Redding CA. Colgan, III, W, AB Carey, JM Trappe, R Molina, and D Thysell. 1999. Diversity and productivity of hypogeous fungal sporocarps in a variably thinned Douglas-fir forest. Canadian Journal of Forest Research 29: 1259–1268. Cooperrider, A, RF Noss, H Welsh, C Carroll, W Zielinski, D Olson, K Nelson, and B Marcot. 2000. Terrestrial fauna of redwood forests, pp 119–163 in The Redwood Forest: History, Ecology, and Conservation of the Coast Redwoods. RF Noss, ed. Island Press, Washington DC. 68 Cordell, S, G Goldstein, FC Meinzer, and LL Handley. 1999. 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Review of the different types of portable sawmills. Northwest Woodlands 16(4): 20– 21. Reeb, JE, JJ Karchesy, JR Foster, and RL Krahmer. 1998. Finger-joint quality after 4, 6, and 32 hours of knife wear: Preliminary results. Forest Products Journal 48(7/8): 33–36. (For. Res. Lab.) Scheffer, TC, and JJ Morrell. 1998. Natural Durability of Wood: A Worldwide Checklist of Species. Research Contribution 22, Forest Research Laboratory, Oregon State University, Corvallis. (For. Res. Lab.) Silva, AA, and JJ Morrell. 2000. Inhibition of wood-staining Ophiostoma picea by Bacillus subtilis on Pinus ponderosa sapwood. Material und Organismen 32: 241–252. (For. Res. Lab.) Silva, AA, CS Love, JJ Morrell, and RC DeGroot. 1999. Biocide protection of field-drilled bolt holes in red oak, yellow-poplar, loblolly pine, and Douglas-fir. Forest Products Journal 49(6): 61–66. (For. Res. Lab.) Simonsen, J, B Xu, and WE Rochefort. 1999. Creep reduction using blended matrices in wood-filled polymer composites, pp. 275–288 in Proceedings of the Fifth Interna- Wood Processing and Product Performance tional Conference on WoodfiberPlastic Composites, 26–27 May 1999, Madison, Wisconsin. Forest Products Society, Madison WI. Skaugset, A, and B Wemple. 1999. The response of forest roads on steep, landslide-prone terrain in western Oregon to the February 1996 storm, pp. 193–203 in Proceedings of the International Mountain Logging and 10th Pacific Northwest Skyline Symposium, 28 March–1 April 1999, Corvallis, Oregon, J Sessions and W Chung, eds. Division 3 of the International Union of Forestry Research Organizations and Department of Forest Engineering, Oregon State University, Corvallis OR. Starkey, EE, PJ Happe, MP GonzalezHernandez, K Lange, and JJ Karchesy. 1999. Tannins as nutritional constraints for elk and deer of the coastal Pacific Northwest, pp. 807–908 in Plant Polyphenols 2. Chemistry, Biology, Pharmacology, Ecology, GG Gross, RW Hemingway, and T Yoshida, eds. Kluwer Academic/Plenum Publishers, New York. Sharp, DJ, SK Suddarth, and C Beaulieu. 2000. Length effect in prefabricated wood I-joists. Forest Products Journal 50(5): 29–42. Swett, TM, and MR Milota. 1999. Drying lumber of submerchantable length. Forest Products Journal 49(4): 71–76. (For. Res. Lab.) Waltz, ME, Jr, TE McLain, TH Miller, and RJ Leichti. 1999. Brace analysis methods for discrete compression webs, pp. 56–64 in Proceedings of the Pacific Timber Engineering Conference, March, 1999, Rotorua, New Zealand, GB Walford and DJ Gaunt, eds. Vol. 2, New Zealand Forestry Research Institute, Rotorua, New Zealand. Wandell, T, JJ Morrell, and RG Rhatigan. 1999. Incidence of above-ground decay in distribution poles in the PGE system, pp. 127–134 in Utility Pole Structures Conference and Trade Show, October 21–22, 1999, Reno, Nevada. Northwest Public Power Association, Vancouver WA. Wu, J, and MR Milota. 1999. Effect of temperature and humidity on total hydrocarbon emissions from Douglas-fir lumber. Forest Products Journal 49(6): 52–60. (For. Res. Lab.) Xu, B, J Simonsen, WE Rochefort. 2000. Mechanical properties and creep resistance in polystyrene/ polythylene blends. Journal of Applied Polymer Science 76: 1100– 1108. (For. Res. Lab.) Xu, F, J Kulys, K Duke, K Li, K Krikstopaitis, HJ Deussen, E Abbate, V Galinyte, and P Schneider. 2000. Redox chemistry in laccase-catalyzed oxidation of N-hydroxy compounds. Applied Environmental Microbiology 66: 2052–2056. 107 U B L I C A T I O N S P R E L A T E D O R E S T R Y F Anderson, TM, and NH Anderson. 1998. The life history of Arrenurus hamrumi—a water mite from rangeland springs in central Oregon, U.S.A, pp. 63–74 in Studies in Crenobiology: The Biology in Springs and Springbrooks, L Botosaneanu, ed. Backhuys Publishers, Leiden. (Dep. Entomol.) Clason, TR, and SH Sharrow. 2000. Silvopastoral practice, pp. 119– 148 in North American Agroforestry—An Integrated Science and Practice, GE Garrett, WJ Rietveld, and RF Fisher eds. American Society of Agronomy, Madison, WI. (Dep. Rangel. Resour.) Connolly, PJ, and JD Hall. 1999. Biomass of coastal cutthroat trout in unlogged and previously clearcut basins in the central Coast Range of Oregon. Transactions of the American Fisheries Society 128: 890–899. (Dep. Fish. Wildl.) Crabo, L, and PC Hammond. 1998. A revision of Mesogona Boisduval (Lepidoptera: Noctuidae) for North America with descriptions of two new species. Journal of Research on the Lepidoptera 34: 83–98. (Dep. Entomol.) Dietrich, M. and NH Anderson. 1998. Dynamics of abiotic parameters, solute removal, and sediment retention in summer-dry headwater streams of western Oregon. Hydrobiologia 379: 1–15. (Dep. Entomol.) Dieterich, M, and NH Anderson. 2000. The invertebrate fauna of summer-dry streams in western Oregon. Archiv fr Hydrobiologie 147: 273–295. (Dep. Entomol.) diFazio, SP, MV Wilson, and NC Vance. 1998. Factors limiting seed production of Taxus brevifolia (Taxaceae) in western Oregon. American Journal of Botany 85: 910–918. (Dep. Bot. Plant Path.) Edge, WD, RE Gresswell, JP Hayes, DE Hibbs, EE Starkey, and JC Tappeiner. 1999. The Cooperative Forest Ecosystem Research Program: Annual Report 1999. Cooperative Forest Ecosystem Research, Oregon State University, Corvallis. (Dep. Fish. Wildl.) Estrada-Venegas, E, RA Norton, and AR Moldenke. 1999. Unusual sperm transfer in Pilogalumna sp. (Galumnidae). pp. 565-567 in Proceedings of Acarology IX Congress, 17-21 July 1994 Columbus, Ohio, GR Needham, R Mitchell, DJ Horn, and WC Welbourn, eds. Ohio Biological Survey, Ohio State University, Columbus, OH. (Dep. Entomol.) Ewel, JJ, DJ O’Dowd, J Bergelson, CC Daehler, CM D’Antonio, LD Gómez, DR Gordon, RJ Hobbs, A Holt, KR Hopper, CE Hughes, M LaHart, RRB Leakey, WG Lee, LL Loope, DH Lorence, SM Forestry-related Publications Louda, AE Lugo, PB McEvoy, DM Richardson, and PM Vitousek. 1999. Deliberate introductions of species: Research needs. BioScience 49: 619–630. (Dep. Entomol.) Headwater Stream Barriers in Western Oregon. http:// zippy.fsl.orst.edu/metadata/ barrier_meta.htm#Entity_and_Attribute_ Information (5 Dec. 2000) (Dep. Fish. Wildl.) Gernandt, DS, and A Liston. 1999. Internal transcribed spacer region evolution in Larix and Pseudotsuga (Pinaceae). American Journal of Botany 86: 711–723. (Dep. Bot. Plant Path.) Hammond, PC. 1999. Review of: Butterflies of the World, V. Sbordoni and S. Forestiero, eds. Firefly Books, Willowdale, ON, Canada. American Entomologist 45: 187–188. (Dep. Entomol.) Gresswell, RE, JP Hayes, and JP Smith. 1998. A long-range strategic plan for the Cooperative Forest Ecosystem Research (CFER) program. Oregon State University Contract Agreement No. H952A1-0101-25 Report to USGS, Forest and Rangeland Ecosystem Science Center, Biological Resources Division. Oregon State University, Corvallis. (Dep. Fish. Wildl.) Hammond, PC and DV McCorkle. 1999. A new species of Philotiella from the Oregon Cascade Range (Lepidoptera: Lycaenidae). Holarctic Lepidoptera 6: 41–46. (Dep. Entomol.) Gresswell, RE, JP Hayes, D Edge, D Hibbs, and J Tappeiner. 1998. Cooperative Forest Ecosystem Research: Long-range Strategic Plan. USGS, Forest and Rangeland Ecosystem Science Center, Biological Resources Division, Corvallis, OR. (Dep. Fish. Wildl.) Gresswell, RE. 1999. Fire and aquatic ecosystems in forested biomes of North America. Transactions of the American Fisheries Society 128: 193–221. (Dep. Fish. Wildl.) Gresswell, RE, DS Bateman, G Lienkaemper, and T Guy. 2000. Johnson, SL, and JA Jones. 2000. Stream temperature response to forest harvest and debris flows in western Cascades, Oregon. Canadian Journal of Fisheries and Aquatic Sciences 57(2): 30–39. (Dep. Fish. Wildl.) Johnson, SL, and AP Covich. 2000. The importance of night-time observations for determining habitat preferences of stream biota. Regulated Rivers Research and Management 16: 91–99. (Dep. Fish. Wildl.) Kaye, TN, and M. Kirkland. 1999. Effect of timber harvest on Cimicifuga elata, a rare plant of western forests. Northwest Science 73: 159–167. (Dep. Bot. Plant Path.) 109 Forestry-related Publications LaBonte, JR, and RE Nelson. 1998. North American distribution and habitat of Elaphropus parvulus (Dejean), an introduced nonsynanthropic carbid beetle (Colioptera: Carabidae). The Coleopterist’s Bulletin 52: 35–42. (Dep. Entomol.) LaBonte, JR. 1998. Terrestrial riparian arthropod investigations in the Big Beaver Creek Research Natural Area, North Cascades National Park Service Complex, 1995–1996: Part II, Coleoptera. Complex Technical Report NPS/ NRNOCA/NRTR/98-02, USDI, North Cascades National Park Service, Washington DC. (Dep. Entomol.) Larsen, RE, WC Krueger, MR George, MR Barrington, JC Buckhouse, and DE Johnson. 1998. Livestock influences on riparian zones and fish habitat: An analysis of the literature. Journal of Rangeland Management 51: 661–664. (Dep. Rangel. Resour.) Lattin, JD. 1998. A Review of the Insects and Mites Found on Taxus spp. with Emphasis on Western North America. PNW-GTR-433, USDA Forest Service Pacific Northwest Research Station, Portland, OR. (Dep. Entomol.) 110 Lattin, JD. 1999. Arthropod investigations of The North Cascades National Park Service Complex. Hemiptera: Heteroptera, I, 1997– 1998. USDI National Park Service Pacific West Region, North Cascades National Park Service Complex, Sedro-Wooley, WA. (Dep. Entomol.) Lattin, JD. 1999. Bionomics of the Anthocoridae. Annual Review of Entomology 44: 207–231. (Dep. Entomol.) Lattin, JD. 1999. Dead leaf clusters as habitats for adult Calliodis temnostethoides and Cardiastethus luridellus and other anthocorids (Hemiptera: Heteroptera: Anthocoridae). Great Lakes Entomologist 32: 33–38. (Dep. Entomol.) Lattin, JD, and JC Miller, 1999. pp. 655–657, and 690–692 in Status and Trends of the Nation’s Biological Resources, MD Mac, DA Opler, CE Puckett Haecker, and DD Doran, eds. USDI, US Geological Survey, Washington DC. (Dep. Entomol.) Lattin, JD and NL Stanton. 1999. Host records of Braconidae (Hymenoptera) occurring in Miridae (Hemiptera: Heteroptera) found on lodgepole pine (Pinus contorta) and associated conifers. Pan-Pacific Entomologist 75: 23– 31. (Dep. Entomol.) Liston, A, WA Robinson, D Piñero, and ER Alvarez-Buylla. 1999. Phylogenetics of Pinus (Pinaceae) based on nuclear ribosomal DNA internal transcribed spacer region sequences. Molecular Phylogenetics Forestry-related Publications and Evolution 11: 95–109. (Dep. Bot. Plant Path.) McEvoy, PB and EM Coombs. 1999. Biological control of plant invaders: Regional patterns, field experiments, and structured population models. Ecological Applications 9: 387–401. Miller, JC. 1999. Monitoring the effects of Bacillus thuringiensis kurstaki on nontarget Lepidopera in woodlands and forests of Western Oregon, pp. 277–286 in Nontarget Effects of Biological Control, PA Follett and JJ Duan, eds. Kluwer Academic Publishers, Boston, MA. (Dep. Entomol.) Minear, P. 1999. Historical riparian conditions and large in-channel wood, Deschutes River, Oregon. Report prepared for Portland General Electric. Department of Fisheries and Wildlife, Oregon State University, Corvallis. (Dep. Fish. Wildl.) Moldenke, AR 1999. Soil-dwelling arthropods: Their diversity and functional roles. pp. 33–44 in Proceedings Pacific Northwest Forest and Rangeland Soil Organism Symposium, 17–19 March 1998. General Technical Report PNWGTR-461. USDA Forest Service Pacific Northwest Research Station, Portland, OR. (Dep. Entomol.) Moldenke, AR, ER Ingham, and C Edwards. 1999. Soil Biology Primer. NRCS-PA1637. USDA Natural Resources Conservation Service, Washington DC. (Dep. Entomol.) Moldenke, AR, M Pajutee, and E Ingham. 1999. The functional role of forest soil arthropods: the soil is a living place, pp 7-22 in Proceedings of the California Forest Soils Council Conference on Forest Soils Biology and Forest Management, 23–24 February 1996,Berkeley, California, RF Powers, DL Hauxwell, GM Nakamura, eds. General Technical Report PSWGTR-178. USDA Forest Service, Pacific Southwest Research Station, Berkeley, CA. (Dep. Entomol.) Rambo, TR, and PS Muir. 1998. Bryophyte species associations with coarse woody debris and stand ages in Oregon. The Bryologist 101: 366–376. (Dep. Bot. Plant Path.) Roush, ML, DE Hibbs, R William, S Cordray, S Sharrow, and S Seiter. 1999. Agroforestry: A successful model for co-learning. NACTA Journal 43(4): 26–31. (Dep. Rangel. Resour.) Sharrow, S.H. 1999. Long-term effects of livestock grazing in western conifer forests, pp. 7–11 in Healthy Forests for the 21st Century—New Technologies in Integrated Vegetation Management. Proceedings of the Twentieth Annual Forest Vegetation Management Conference, 111 Forestry-related Publications 19–21 January 1999, Redding CA. Forest Vegetation Management Conference, Redding CA. (Dep. Rangel. Resour.) Sharrow, SH. 1999. Prescription grazing for vegetation management, pp. 52–60 in Vegetation Management in the Era of Threatened and Endangered Species, C Ramsay, ed. PNW Integrated Vegetation Management Association, Pullman WA. (Dep. Rangel. Resour.) Sharrow, SH. 1999. Shade trees to benefit livestock. Oregon Beef Producer 12(10): 14–15, 22. (Dep. Rangel. Resour.) Sharrow, SH 1999. Silvopastoralism: Competition and facilitation between trees, livestock, and improved grass-clover pastures on temperate rainfed lands, pp.111– 130 in Agroforestry in Sustainable Agricultural Systems, L Buck, JP Lassoie, and ECM Fernandes, eds. CRC Press/Lewis Publishers, Boca Raton, FL. (Dep. Rangel. Resour.) Sharrow, SH. 2000. Does shade from trees increase summer weight gains of cattle?, The Grazier 305 (October): 3–5. (Dep. Rangel. Resour.) Sharrow, SH. 2000. Trees in pastures: Do cattle benefit from shade?, The Temperate Agroforester 8(3): 3, 9. (Dep. Rangel. Resour.) 112 Shock, CC, EBG Feibert, and LD Saunders. 2000. Poplar growth in response to irrigation management, pp 77–81 in Hybrid Poplars in the Pacific Northwest: Culture, Commerce, and Capacity, Symposium Proceedings, April, 1999, Pasco WA, KA Blatner, JD Johnson, and DM Baumgartner, eds. MISC0272, Washington State University, Seattle, WA. (Dep. Crop Soil Sci.) Stringham, TK, JC Buckhouse, and WC Krueger. 1998. Stream temperatures as related to subsurface waterflows originating from irrigation. Journal of Rangeland Management 51: 88–91. (Dep. Rangel. Resour.) Stringham, TK, WC Krueger, and DR Thomas. 1998. Understanding the relationship between water table depth and plant comunities: Implication for riparian management and restoration, p. 346 in Proceedings of the AWRA Specialty Conference on Rangeland Management and Water Resources, Reno, Nevada, 27–29 May 1998, DF Potts, ed. American Water Resources Association, Middleburg, VA. (Dep. Rangel. Resour.) Wilson, MV, CA Ingersoll, and WG Thies. 1999. Testing for effects of stump fumigation with chloropicrin on non-target vegetation in an early seral Douglas-fir stand. Canadian Journal of Forest Re- Forestry-related Publications search 29: 1254–1258. (Dep. Bot. Plant Path.) Wright, K, and J Li. 1998. Effects of recreational activities on the distribution of Dicosmoecus gilvipes in a mountain stream. Journal of the North American Benthological Society 17: 535–543. (Dep. Fish. Wildl.) 113 R O G R A M S P U D I O V I S U A L A 114 The Forestry Media Center has been producing and distributing videotapes (VT), films, and slide-tapes (S-T) since 1972. More than a million students in educational institutions, government agencies, and private industry throughout the world have used these audiovisual programs for training and education. Although most of the programs have been prepared for professional foresters and forestry students, many are of interest to small-woodland owners, high school classes, other special groups, and the general public. In the past two years, specialists from the College of Forestry have completed two new programs. The Center now has over 123 presentations available for purchase or rent. For a complete listing, please contact: Edward C. Jensen, Director Forestry Media Center Oregon State University 250 Peavy Hall Corvallis, Oregon 97331-5702 Phone (541) 737-4702 Fax (541) 737-3759 fmc@cof.orst.edu http://osu.orst.edu/dept/fmc PROJECT FLOW (FORESTRY LEARNING OPPORTUNITIES FOR WORKERS) 13 minutes each Video Tape 1170.1 +1170.2 Website: www.forestlearn.org Audience: Forestry workers in Oregon’s primary and secondary manufacturing industries. Also secondary schools and the general public. Prices: Free. Obtainable from: Oregon Forest Resources Institute, 808 SW 3rd Ave., Suite 480 Portland, OR 97204 (503) 229-6718 Info@ofri.com Producers: Forestry Media Center and Oregon Forest Resources Institute Developers: Jeff Hino, David Zahler, and Mark Reed, Forestry Media Center Contributing scientists: Mike Newton and John Hayes, OSU Department of Forest Science Production date: 1999 (Vol. 1), 2000 (Vol. 2) Audiovisual Programs The forest products industry employs over 1.4 million people in the United States; it ranks among the top 10 manufacturing employers in 46 states. However, few educational programs about forestry and forest management are targeted at this audience. As a result, employees are often no better acquainted with forestry issues than the general public. Project FLOW (Forestry Learning Opportunities for Workers) is the product of a cooperative effort between Oregon State University’s Forestry Media Center and the Oregon Forest Resources Institute. Its purpose is to increase the basic forestry knowledge of Oregon’s forestry workforce. Project FLOW is a set of teaching packages with the following components: • www.forest learn.org — A website that presents objective information on forestry issues in a lively and timely manner. • ”Oregon Forest Journal” — a video magazine whose Issues in the Forest segments address forestry issues in brief, compelling short episodes. The Faces of Forestry provide an additional human interest story highlighting forest products workers and activities in natural resources. • Vol.1, “Looking for a Clearcut Answer,” focuses on clearcutting, exploring why and when foresters use this often-controversial silvicultural tool. (1170 V-T) • Vol 2., “Habitat, Sweet Habitat,” looks into some of the science of wildlife habitat and explores what foresters are doing to protect the abundance and diversity of wildlife in our managed forests. (1171 V-T) Each video is accompanied by a viewer summary, presenter’s guide, and other support materials. MANAGING FOR BIODIVERSITY IN YOUNG FORESTS 28 minutes Video Tape 1155 Audience: Forest managers and others interested in the ecology of managed forests. Price: Purchase $95, rental $25 Producers: Betsy Littlefield, Cooperative Forest Ecosystem Research (CFER), OSU; Ruth Jacobs, Forest and Rangeland Ecosystem Science Center (FRESC), USGS. Director: Mark Reed, Forestry Media Center, OSU Contributing scientists: John Tappeiner, FRESC; Joseph Lint, BLM; Joan Hagar, Patricia Muir, Jeff Miller, Eric Peterson, and Abbey Rosso, OSU. Publication date: 2000. 115 West-side forests in Oregon and Washington are increasingly dominated by dense young stands as a result of decades of timber harvesting. The Endangered Species Act and the Northwest Forest Plan have focused attention on biodiversity within these stands. The Young Stand Biodiversity Project compared vegetation and fauna in young thinned, young unthinned, and old-growth stands on BLM lands. In this program, researchers who studied birds, moths, lichens, bryophytes, and understory vegetation discuss their findings and possible implications for future management of young forests. VISIT OUR WEB PAGES A complete and constantly updated web-page version of the Forestry Learning Materials Catalog is available at www.orst.edu/dept/fmc. This site includes updated information about new releases, additional material about the Forestry Media Center, and links to other forestry sites of interest. 116 Mike Cloughesy, Director Outreach Education 202 Peavy Hall Corvallis, OR 97331-5707 Phone: (541)737-2329 Fax: (541)737-4966 Outreach@for.orst.edu Event Title Attendance 1998–1999 Swiss Needle Cast Cooperative Meeting ORGANON Workshop Advanced Silviculture Lumber Quality and Process Control 60 18 29 24 O R K S H O P S W A N D S 1998-2000 FORESTRY OUTREACH EDUCATION EVENTS H O R T C The following list shows the number and diversity of courses offered over the last two years: O U R S E S The Forest Research Laboratory, in cooperation with other departments and units in Oregon State University’s College of Forestry, offers an extensive array of continuing higher education and technology-transfer events, training workshops, short courses, and conferences each year through its Outreach Education Office. Participants come from a broad spectrum of the forest community, including mid-career silviculturists and forest professionals, forest technicians and practitioners, mill managers and supervisors, logging specialists, contractors, other natural resource specialists, industry foresters, and private landowners. The mission of the Outreach Education Office is to provide high-quality programs to meet the educational needs of natural resource scientists and professionals and to enhance public understanding of natural resources. During the 1998–1999 and 1999–2000 academic years, 66 courses were offered and attended by a total of 4,537 people. All courses were carefully budgeted to be fully supported by participant fees or outside grants and contracts. Courses offer participants up-to-date forest research information and training and a forum for discussing and evaluating current forestry issues. They also keep open a vital channel of communication about application of the Laboratory’s research findings and future research needs. Many programs are cosponsored by other forestry and natural resource agencies and organizations, providing further links among users of research information. Lumber Quality Leadership Northeast Utility Pole Conference Swiss Needle Cast Cooperative Meeting Forest Business and Tax Series Advanced Variable Probability Sampling Forest Fragmentation Mushrooms & Managers Selling Forest Products How to Dry Lumber For Quality and Profit Native Plants Sawing Technology ORGANON Workshop Integrated Forest & Stream Management Symposium GIS/GPS Fundamentals for Natural Resources Planning Natural Resources Module 2: Decision Making and Systems Thinking for Natural Resource Professionals Skyline Symposium Variable Probability Sampling Forest Assessor Training Plywood Manufacturing Total attendance for 23 events 11 130 60 19 24 190 25 11 40 375 50 18 452 21 21 238 26 20 51 1,913 1999–2000 118 Ecology & Management of Port-Orford-Cedar Introduction to ArcView Applications in Natural Resources Swiss Needle Cast Cooperative Meeting CREP-Pendleton CREP-Springfield Water Issues Oregon Forestry Institute for Teachers SCOPE: Transition Zones Workshop Phytophthoras in Forest and Wildland Ecosystems Oregon’s Forests at the Millenium Silviculture Institute Tour Effective Forest Road Management Lumber Quality & Process Control OFRI Media Tour OFRI Values Video Conference Lumber Quality Leadership Environmental Marketing 69 20 60 59 82 70 24 28 42 324 58 34 32 10 30 13 47 Swiss Needle Cast Cooperative Meeting Advanced Variable Probability Sampling Clearcutting in Western Oregon Selling Forest Products How to Dry Lumber for Quality and Profit Introduction to ArcView GIS Applications in Natural Resources Certified Forest Management Presentation Skills Workshop Introduction to ArcView GIS Applications in Natural Resources Natural Resources Module 2: Decision Making and Systems Thinking for Natural Resource Professionals Forest Road Stewardship Workshop Commercial Thinning & Harvest Planning For Skyline Operations Advanced ArcView GIS Application in Natural Resources Mapping & Orthophotos from Aerial Photography Variable Probability Sampling Newtonian Silviculture OFRI Presentations & Skills for Foresters Plywood Manufacturing Introduction to ArcView GIS Applications in Natural Resources Sustainable Management of Family Forests Fish Passage Workshops (5) OFRI Forest Aesthetics Training 60 22 358 17 48 20 15 15 10 21 125 32 10 23 20 200 15 75 11 100 375 50 Total attendance for 43 events 2,624 Total attendance for 66 events in 1998–2000 4,537 119 FRL ADVISORY COMMITTEE Richard Baldwin President Oak Creek Investments 97 Constantine Place Eugene, OR 97405-9551 Office: (541) 344-8519 FAX: (541) 343-3488 Dave Bowden Senior Vice President Timber Department Longview Fibre Company P.O. Box 667 Longview, WA 98632-7428 Office: (360) 575-5107 FAX: (360) 575-5932 Deborah M. Brosnan President Sustainable Ecosystems Institute 0605 S.W. Taylors Ferry Road Portland, OR 97219-3053 Office: (503) 246-5008 FAX: (503) 246-6905 James E. Brown State Forester Oregon Department of Forestry 2600 State Street Salem, OR 97310-0340 Office: (503) 945-7211 FAX: (503) 945-7212 Barbara Craig Stoel, Rives, Boley, Jones & Grey 900 S.W. 5th Ave., Suite 2300 Portland, OR 97204-1268 Office: (503) 294-9166 FAX: (503) 220-2480 Dan M. Dutton President and CEO Stimson Lumber Company 520 S.W. Yamhill Street, Suite 308 Portland, OR 97204-1326 Office: (503) 222-1676 FAX: (503) 222-2682 Harv Forsgren Regional Forester USDA Forest Service, Region 6 P.O. Box 3623 Portland, OR 97208-3623 Office: (503) 808-2201 FAX: (503) 808-2210 John Foster Managing Partner Oregon Tree Farms, Ltd. P.O. Box 537 Estacada, OR 97023-0537 Office: (503) 630-7333 FAX: (503) 630-7334 Richard E. Hanson Senior Vice President, Timberlands Weyerhaeuser Company CH5F P.O. Box 2999 Tacoma, WA 98477-2999 Office: (253) 924-6012 FAX: (253) 924-2685 Sara Vickerman Director West Coast Office Defenders of Wildlife 1637 Laurel Street Lake Oswego, OR 97034-4755 Office: (503) 697-3222 FAX: (503) 697-3268 Duane C. McDougall President and CEO Willamette Industries, Inc. 3800 First Interstate Tower 1300 S.W. Fifth Avenue Portland, OR 97201-5667 Office: (503) 721-2767 FAX: (503) 273-5604 Elaine Y. Zielinski State Director Bureau of Land Management P.O. Box 2965 Portland, OR 97208-2965 Office: (503) 952-6026 FAX: (503) 952-6390 Robert F. Turner Senior Vice President Jeld-Wen P.O. Box 1329 Klamath Falls, OR 97601-0268 Office: (541) 882-3451 FAX: (541) 885-7454