RZWQM: Simulating the effects of management on water quality and crop production |
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| Institution: | 1. Department of Geosciences, Middle Tennessee State University, Murfreesboro, TN, USA;2. National Sedimentation Laboratory, U.S. Department of Agriculture, Oxford, MS, USA;1. Department of Control Technology, Wuxi Institute of Technology, Wuxi, Jiangsu 214121, China;2. Department of Bioresource Engineering, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada;3. Department of Computer Science, Jiangnan University, Wuxi, Jiangsu 214122, China;1. Dept. of Biological and Agricultural Engineering, North Carolina State University, Campus Box 7625, Raleigh, NC 27695, USA;2. Dept. of Biosystems & Agricultural Engineering, Michigan State University, 524 S Shaw Ln, East Lansing, MI, 48824, USA;3. Dept. of Crop and Soil Sciences, North Carolina State University, Campus Box 7620, Raleigh, NC, 27695, USA;4. USDA-ARS Soil Drainage Research Unit, 590 Woody Hayes Dr., Columbus, OH, 43210, USA;1. Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC, USA;2. Civil Engineering Dept., Faculty of Engineering, Fayoum University, Egypt;3. Arid-Land Agricultural Research Center, USDA Agricultural Research Service, Maricopa, AZ, USA;4. The National Laboratory for Agriculture and the Environment, USDA Agricultural Research Service, Ames, IA, USA;1. Department of Agronomy, Iowa State University, Agronomy Hall, Ames, IA, 50011-1010, USA;2. CSIRO, PO Box 102, 4350, Toowoomba, Australia;3. USDA-ARS, National Laboratory for Agriculture and the Environment, Ames, IA, 50011, USA;1. College of Water Resources and Civil Engineering, China Agricultural University, Beijing, 100083, PR China;2. Ecological Engineering Laboratory (ECOL), Environmental Engineering Institute (IIE), Faculty of Architecture, Civil and Environmental Engineering (ENAC), Ecole polytechnique fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland |
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| Abstract: | The interactive use of experimentation and modeling is an efficient way to devise and test new agricultural management systems. The Root Zone Water Quality Model (RZWQM) is a comprehensive simulation model designed to predict the hydrologic response, including potential for groundwater contamination, of alternative crop-management systems. The model is one-dimensional (vertical into the soil profile) and integrates physical, biological and chemical processes. It simulates crop development and the movement of water, nutrients and pesticides over and through the root zone for a representative unit area of an agricultural field over multiple years. RZWQM allows for a variety of management practices: tillage; irrigation, fertilizer, manure and pesticide applications; tile drainage and crop rotations. Several significant validation efforts have shown the usefulness of RZWQM for evaluating and developing management scenarios. |
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