Abstract
Process-based water (WEPP) and wind (WEPS) erosion models have been recently developed and are designed to replace older models currently in use. Both models simulate weather and field conditions, including biomass growth, biomass decomposition, hydrology, and management practices on a daily basis. The Natural Resource Conservation Service of USDA and other user agencies have requested WEPP and WEPS be combined into a single model that simulates both wind and water erosion. The Agricultural Research Service is undertaking that task. Some of the advantages postulated for a single model, compared to using two independent models include: easier communication of simulation results to clients, less computer code and databases to maintain, and lower training costs for user agencies. A first step towards a single water and wind erosion model can be taken by developing a common plant growth model that meets the needs of WEPP and WEPS. A framework for developing a common WEPP/WEPS plant growth model is presented.
Published Version
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