Erosion, Productivity and Rangeland Watershed Planningby Karl A. Gebhardt, Bur of Land Management, Idaho State, Office, Boise, ID, USA,
Abstract: The Bureau of Land Management is responsible for the management of over 160 million acres of rangeland in the western United States. The principal uses of these rangelands are the grazing of wildlife and domestic livestock, mineral exploration and extraction, and public purposes such as recreation and waste disposal. Domestic livestock grazing is the largest single use of the public lands. A quantifiable approach to watershed management planning is presented using the concepts of existing condition, potential condition, tolerance, vulnerability, and responsiveness. Two models, the Erosion and Productivity Impact Calculator (EPIC) and the Simulation of Production and Utilization of Rangelands (SPUR), are considered to provide an analysis tool for the watershed management planning approach.
Subject Headings: Watersheds | Rangeland | Erosion | Land use | Livestock | Soil analysis | Simulation models | Decision support systems | North America | United States
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