Environmental Science Chapter 14 Test Deforestation – area where land/ecosystems are protected from exploitation Ecosystem services – resources provided by natural or artificial ecosystems Geographic Information System – land-use tool Infrastructure – roads, schools, power lines etc. Environmental Science Chapter 14 Test Overgrazing – excessive use of a grazing area Selective cutting – certain trees removed only Urban area – 2500 people or more (most Americans live here) Urban crisis – rapid growth, cities cannot provide service for all citizens Urban sprawl – rapid expansion into countryside Wilderness area – land/ecosystems protected from exploitation Environmental Science Chapter 14 Test An example of land used as a protected area to preserve the scenery and ecosystems is the Grand Canyon. National Farmland Protection Program - protect farmland from being developed. Cutting only mature or medium-sized trees allows forests to recover from tree harvesting. Range improvement – eliminate invasive plants and replace with native plants. Environmental Science Chapter 14 Test Rural areas - produce the resources Heat islands produce increased precipititation Open spaces in cities -lower summer temperatures -absorb carbon dioxide -filter pollutants from air and water Environmental Science Chapter 14 Test Inadequate urban infrastructures -traffic jams, substandard housing Clear-cutting of forests -advantages – less expensive than selective -disadvantages – destroys habitats, soil erosion Environmental Science Chapter 14 Test Rangeland -well managed = limited grazing animals = watering areas provided = native plants growing -poorly managed = overgrazed, too many animals = grass killed, land becomes bare = erosion occurs = nonnative plants move in = can no longer support grazing Environmental Science Chapter 14 Test Essay – Answer all 3 parts! Consider the statement “National Parks should be closed to motor vehicles.” List both the advantages and disadvantages of this plan. Then give your own opinion – would you support the banning of motor vehicles from National Parks?