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ACCOUNTING FOR SPATIAL CHARACTERISTICS OF WATERSHEDS IN EVALUATING WATER POLLUTION ABATEMENT POLICIES AgEcon
Qiu, Zeyuan; Prato, Anthony A..
This study evaluates three agricultural nonpoint pollution abatement policies: regulating the spatial pattern of agricultural activities, ambient tax, and abatement tax/subsidy. All three policies incorporate spatial characteristics of agricultural emission loading and movement for an agricultural watershed in the Midwest. The effects of spatial variation in natural conditions and landscape features on agricultural emissions and crop yield are evaluated using a newly developed biophysical simulation model and experimental data. While the policies are equally cost effective in reducing agricultural nonpoint source pollution, their implementation feasibility is quite different.
Tipo: Journal Article Palavras-chave: Atrazine; Environmental policy; Nonpoint pollution; Simulation; Watershed management; Water quality; Environmental Economics and Policy.
Ano: 1999 URL: http://purl.umn.edu/15135
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WATERSHED-SCALE ECONOMIC AND ENVIRONMENTAL TRADEOFFS INCORPORATING RISKS: A TARGET MOTAD APPROACH AgEcon
Qiu, Zeyuan; Prato, Anthony A.; Kaylen, Michael S..
This paper evaluates the economic and environmental tradeoffs at watershed scale by incorporating both economic and environmental risks in agricultural production. The Target MOTAD model is modified by imposing a probability-constrained objective function to capture the yield uncertainty caused by random allocation of farming systems to soil types and by introducing environmental targets to incorporate environmental risk due to random storm events. This framework is used to determine the tradeoffs frontier between watershed net return and sediment yield and nitrogen concentration in runoff in Goodwater Creek watershed, Missouri. The frontier is significantly affected by environmental risk preference.
Tipo: Journal Article Palavras-chave: Environmental Economics and Policy.
Ano: 1998 URL: http://purl.umn.edu/31523
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