Soil Erosion Assessment Tool - Water Erosion Prediction Project (WEPP)
2008
Kim, M.K. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea), E-mail: [email protected] | Park, S.J. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) | Choi, C.M. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) | Ko, B.G. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) | Lee, J.S. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) | Flanagan, D.C. (USDA-Agricultural Research Service, National Soil Erosion Research Laboratory, West Lafayette, IN, USA)
The Water Erosion Prediction Project (WEPP) was initiated in August 1985 to develop new generation water erosion prediction technology for federal agencies involved in soil and water conservation and environmental planing and assessment. Developed by USDA-ARS as a replacement for empirical erosion prediction technologies, the WEPP model simulates many of the physical processes important in soil erosion, including infiltration, runoff, raindrop detachment, flow detachment, sediment transport, deposition, plant growth and residue decomposition. The WEPP included an extensive filed experimental program conducted on cropland, rangeland, and disturbed forest sites to obtain data required to parameterize and test the model. A large team effort at numerous research locations, ARS laboratories, and cooperating land-grant universities was needed to develop this state-of-the-art simulation model. The WEPP model is used for hillslope applications or on small watersheds. Because it is physically based, the model has been successfully used in the evaluation of important natural resources issues throughout the United State and in several other countries. Recent model enhancements include a graphical Windows interface and integration of WEPP with GIS software. A combined wind and water erosion prediction system with easily accessible databases and a common interface is planned for the future.
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