Modeling Management Practice Effects on Pesticide Movement to Ground Water |
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| Authors: | L L Shoemaker W L Magette A Shirmohammadi |
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| Institution: | Leslie L. Shoemaker is a former USDA National Needs Fellow in the Department of Agricultural Engineering, where she ispursuing a Ph.D. degree (Agricultural Engineering Department, University of Maryland, College Park, MD 207424711). The focus of her research program is on augmentation of the GLEAMS model to describe the hydrologic behavior of the vadose zone. She previously has been extensively involved in model applications for non-point source pollution control both in a graduate degree program at Cornell University and as an engineer with the Interstate Commission on the Potomac River Basin. She is currently employed as a water resources engineer with Greenhorne and 0 'Mara, Greenbelt,Maryland.;William L. Magette is assistant professor of Agricultural Engineering at The University of Maryland, College Park (A griculturalEngineering Department, 1126 Shriver Lab, The University of Maryland, College Park, MD 20742). He received his B.S., M.E. and Ph.D. from Virginia Polytechnic Institute andstate University. Currently,his research and extension programs address water quality impacts of agricultural best management practices.;Adel Shirmohammadi is assistant professor of Agricultural Engineering at The University of Maryland, College Park (Agricultural Engineering Department, 1108 Shriver Lab, The University of Maryland, College Park,MD 20742). He received his B.S. in Iran, and his M.S. and Ph.D. from the University of Nebraska and North Carolina State University, respectively. His current research interests include transport and shallow water table management models to quantify the hydrologic and water quality responses of agricultural watersheds. |
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| Abstract: | The assessment of agricultural impacts on water quality are now being redirected to include both ground water and surface water. Mathematical models have enhanced the ability of scientists'to evaluate these impacts. A variety of public domain models are available that can aid in evaluating the effects of managerial activities on pesticide movement to ground water. However, the ideal non-point source (NPS) pollution management model does not exist. Current models fail to adequately describe the transport of chemicals to ground water and, simultaneously, the effect of managerial practices on transport mechanisms. Much more work is necessary to develop a model that can describe water quality impacts of agricultural practices in a holistic framework that includes ground water and surface water concerns. |
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