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1 Xu, F.; Prato, T.; Ma, J. C.. 1995. A farm-level case study of sustainable agricultural production. Journal of Soil and Water Conservation, 50(1):39-44.

Sustainable agriculture ; Agricultural production ; Erosion ; Computer models ; Environmental effects / USA / Missouri

(Location: IWMI-HQ Call no: P 3971 Record No: H017118)

2 Prato, T.; Ma, J. C.. 1991. Economic evaluation of farming systems to protect surface and ground water quality. In Ritter, W. F. (Ed.), Irrigation and drainage: Proceedings of the 1991 National Conference sponsored by the Irrigation and Drainage Division of the American Society of Civil Engineers and the Hawaii Section, ASCE, Honolulu, Hawaii, July 22-26, 1991. New York, NY, USA: ASCE. pp.597-603.

Water quality ; Surface water ; Groundwater ; Economic evaluation ; Farming systems ; Mathematical models ; Watersheds ; Sedimentation ; Stochastic process ; Environmental effects ; Optimization / USA

(Location: IWMI-HQ Call no: 631.7 G430 RIT Record No: H019917)

Two approaches are discussed for evaluating the economic and environmental effects of farming systems designed to protect water quality. The scenario approach evaluates specific farming system and the optimization approach uses mathematical models to select efficient farming systems for achieving specific improvements in environmental quality. A mathematical programming model is developed which can be used to determine the farming systems which maximize total net farm income in a watershed subject to a limit on annual sediment yield from the watershed. The model allows sediment delivery to be stochastic.