Society—a professional society dedicated to promoting the art and science of natural resource conservation.

Richard M.Cruse is a professor of Agronomy at lowa State University and director of the lowa Water Center, focusing research activities on managing soil and water resources. He received his B.S. from lowa State University and his M.S. and Ph.D. from the University of Minnesota. He currently serves on the National Advisory Council for Environmental Policy and Technology in the Energy Work Group. He is a fellow of the Soil Science Society of America and the American Society of Agronomy.

Noel R.Gollehon is an agricultural economist with the Economic Research Service, USDA. His research has examined water quantity and quality issues in agriculture, including national/regional irrigation water use and confined livestock waste. He has led award-winning research teams and is frequently called on as a water-use expert for USDA and other government agencies. With a Ph.D. in agricultural economics from the University of Nebraska, he has been with the Economic Research Service for 20 years in various research and administrative positions. His training for this presentation began years ago moving sprinkler pipe on the farm in Eastern New Mexico.

Wendy D.Graham is the Carl S.Swisher Eminent Scholar in Water Resources in the Department of Agricultural and Biological Engineering at the University of Florida and director of the University of Florida Water Institute. She graduated from the University of Florida with a B.S. in environmental engineering. Her Ph.D. is in civil engineering from the Massachusetts Institute of Technology. She conducts research in the areas of coupled hydrologic-water quality-ecosystem modeling; water resources evaluation and remediation; evaluation of impacts of agricultural production on surface and groundwater quality; and stochastic modeling and data assimilation.

Mark T.Holtzapple is a professor of chemical engineering at Texas A&M University, where he has been teaching for 21 years. He received his Ph.D. from the University of Pennsylvania. His research interests are very broad and include the following: biomass conversion, seawater desalination, engines, air conditioning, jet ejectors, waste processing, and feed production.

Stephen R.Kaffka is director of the Long Term Research on Agricultural Systems Project, part of the Agricultural Sustainability Institute at the University of California-Davis. As director he leads the development of current and

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