Mycorrhizal associations of dominant trees influence nitrate leaching responses to N deposition Biogeochemistry Meghan G. Midgley* and Richard P. Phillips Department of Biology, Indiana University *Corresponding author. Tel.: (812) 856-1563; E-mail address: mmidgley@indiana.edu Table S2. Full bibliographic references for publications from which data were extracted for this meta-analysis. Adams MB, Kochenderfer JN, Edwards PJ. 2007. The Fernow Watershed Acidification Study: ecosystem acidification, nitrogen saturation and base cation leaching. Water, Air, and Soil Pollution: Focus 7(2-3): 267-273. Bergkvist B, Folkeson L. 1992. Soil acidification and element fluxes of a Fagus-Sylvatica forest as influenced by simulated nitrogen deposition. Water Air and Soil Pollution 65(1-2): 111-133. Christ M, Zhang YM, Likens GE, Driscoll CT. 1995. Nitrogen-retention capacity of a northern hardwood forest soil under ammonium-sulfate additions. Ecological Applications 5(3): 802-812. Corre MD, Beese FO, Brumme R. 2003. Soil nitrogen cycle in high nitrogen deposition forest: Changes under nitrogen saturation and liming. Ecological Applications 13(2): 287-298. Emmett BA, Brittain SA, Hughes S, Gorres J, Kennedy V, Norris D, Rafarel R, Reynolds B, Stevens PA. 1995. Nitrogen Additions (Nano3 and Nh4no3) at Aber Forest, Wales .1. Response of throughfall and soil-water chemistry. Forest Ecology and Management 71(1-2): 45-59. Emmett BA, Reynolds B, Silgram M, Sparks TH, Woods C. 1998. The consequences of chronic nitrogen additions on N cycling and soilwater chemistry in a Sitka spruce stand, North Wales. Forest Ecology and Management 101(1-3): 165-175. Gilliam FS, Yurish BM, Adams MB. 2001. Temporal and spatial variation of nitrogen transformations in nitrogen-saturated soils of a central Appalachian hardwood forest. Canadian Journal of Forest Research-Revue Canadienne De Recherche Forestiere 31(10): 1768-1785. Hagedorn F, Schleppi P, Bucher J, Fluhler H. 2001. Retention and leaching of elevated N deposition in a forest ecosystem with Gleysols. Water Air and Soil Pollution 129(1-4): 119-142. Houle D, Moore JD. 2008. Soil solution, foliar concentrations and tree growth response to 3year of ammonium-nitrate addition in two boreal forests of Quebec, Canada. Forest Ecology and Management 255(7): 2049-2060. Huntington TG, Ryan DF, Hamburg SP. 1988. Estimating soil-nitrogen and carbon pools in a northern hardwood forest ecosystem. Soil Science Society of America Journal 52(4): 1162-1167. Hutchinson TC, Watmough SA, Sager EPS, Karagatzides JD. 1998. Effects of excess nitrogen deposition and soil acidification on sugar maple (Acer saccharum) in Ontario, Canada: An experimental study. Canadian Journal of Forest Research-Revue Canadienne De Recherche Forestiere 28(2): 299-310. Jefts S, Fernandez IJ, Rustad LE, Dail DB. 2004. Decadal responses in soil N dynamics at the Bear Brook Watershed in Maine, USA. Forest Ecology and Management 189(1-3): 189205. Kothawala DN, Moore TR, Hendershot WH. 2009. Soil properties controlling the adsorption of dissolved organic carbon to mineral soils. Soil Science Society of America Journal 73(6): 1831-1842. Lovett GM, Goodale CL. 2011. A new conceptual model of nitrogen saturation based on experimental nitrogen addition to an oak forest. Ecosystems 14(4): 615-631. Magill AH, Downs MR, Nadelhoffer KJ, Hallett RA, Aber JD. 1996. Forest ecosystem response to four years of chronic nitrate and sulfate additions at Bear Brooks Watershed, Maine, USA. Forest Ecology and Management 84(1-3): 29-37. McDowell WH, Magill AH, Aitkenhead-Peterson JA, Aber JD, Merriam JL, Kaushal SS. 2004. Effects of chronic nitrogen amendment on dissolved organic matter and inorganic nitrogen in soil solution. Forest Ecology and Management 196(1): 29-41. McLaughlin DL, Chiu M, Durigon D, Liljalehto H. 2000. The Ontario hardwood forest health survey: 1986-1998. Forestry Chronicle 76(5): 783-791. Meiwes KJ, Merino A, Beese FO. 1998. Chemical composition of throughfall, soil water, leaves and leaf litter in a beech forest receiving long term application of ammonium sulphate. Plant and Soil 201(2): 217-230. Mitchell MJ, Driscoll CT, Owen JS, Schaefer D, Michener R, Raynal DJ. 2001. Nitrogen biogeochemistry of three hardwood ecosystems in the Adirondack region of New York. Biogeochemistry 56(2): 93-133. Miller DE, Watmough SA. 2009. Soil acidification and foliar nutrient status of Ontario's deciduous forest in 1986 and 2005. Environmental Pollution 157(2): 664-672. Moore JD, Houle D. 2009. Soil solution and sugar maple response to NH4NO3 additions in a base-poor northern hardwood forest of Quebec, Canada. Environmental Monitoring and Assessment 155(1-4): 177-190. Nagakura J, Akama A, Mizoguchi T, Okabe H, Shigenaga H, Yamanaka T. 2006. Effects of chronic nitrogen application on the growth and nutrient status of a Japanese cedar (Cryptomerica japonica) stand. Journal of Forest Research 11(5):299-304. Pregitzer KS, Burton AJ, Zak DR, Talhelm AF. 2008. Simulated chronic nitrogen deposition increases carbon storage in Northern Temperate forests. Global Change Biology 14(1): 142-153. Pregitzer KS, Zak DR, Burton AJ, Ashby JA, MacDonald NW. 2004. Chronic nitrate additions dramatically increase the export of carbon and nitrogen from northern hardwood ecosystems. Biogeochemistry 68(2): 179-197. Rustad LE, Fernandez IJ, Fuller RD, David MB, Nodvin SC, Halteman WA. 1993. Soil solution response to acidic deposition in a northern hardwood forest. Agriculture Ecosystems & Environment 47(2): 117-134. Ste-Marie C, Houle D. 2006. Forest floor gross and net nitrogen mineralization in three forest types in Quebec, Canada. Soil Biology & Biochemistry 38(8): 2135-2143. Szillery JE, Fernandez IJ, Norton SA, Rustad LE, White AS. 2006. Using ion-exchange resins to study soil response to experimental watershed acidification. Environmental Monitoring and Assessment 116(1-3): 383-398. Tyler G, Pahlsson AMB, Bergkvist B, Falkengren-Grerup U, Folkeson L, Nihlgard B, Ruhling A, Stjernquist I. 1992. Chemical and biological effects of artificially increased nitrogen deposition to the ground in a Swedish beech forest. Scandinavian Journal of Forest Research 7(1-4): 515-532. Venterea RT, Groffman PM, Verchot LV, Magill AH, Aber JD, Steudler PA. 2003. Nitrogen oxide gas emissions from temperate forest soils receiving long-term nitrogen inputs. Global Change Biology 9(3): 346-357. Wallace ZP, Lovett GM, Hart JE, Machona B. 2007. Effects of nitrogen saturation on tree growth and death in a mixed-oak forest. Forest Ecology and Management 243(2-3): 210218.