. 1980-1990 national program of research for forests and associated rangelands. --. Forests and forestry Research United States; Rangelands Research United States. Various forest uses affect the soil, water, and air. Research is concerned with alleviating pollution from forestry practices and reclaiming of mined forest and rangeland. More information is also being obtained on the effects of intensive silviculture and harvesting on water quality and nutrient cycling within ecosystems having different soil, vegetation, and geologic features. Some research scientists are also determining environ-
. 1980-1990 national program of research for forests and associated rangelands. --. Forests and forestry Research United States; Rangelands Research United States. Various forest uses affect the soil, water, and air. Research is concerned with alleviating pollution from forestry practices and reclaiming of mined forest and rangeland. More information is also being obtained on the effects of intensive silviculture and harvesting on water quality and nutrient cycling within ecosystems having different soil, vegetation, and geologic features. Some research scientists are also determining environ- mentally safe dosages of recycled waste water and sludge to fertilize the forest, while protecting the ground water. Maintaining homes for threatened or endangered animals or plants is an important part of the North Central Region's wildlife habitat research. More infor- mation is needed on how changing vegetation affects habitats and how to predict community changes. Range research includes management of woody and forb plants, rangeland uses of nitrogen-fixing plant materials, and biological management of pests and undesirable plants. Outdoor recreation research provides information for allocating and managing natural resources without destroying the environment recreationists seek. 20. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Forest Service. [Washington, D. C. ?] : U. S. Dept. of Agriculture, Forest Service
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