文章基本信息

标题：Cost-Effective Targeting for Reducing Soil Erosion in a Large Agricultural Watershed
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作者：Smith, Craig M. ; Williams, Jeffrey R. ; Nejadhashemi, Amirpouyan 等
期刊名称：Journal of Agribusiness
印刷版ISSN：0738-8950
出版年度：2014
页码：509-526
出版社：Journal of Agribusiness
摘要：Erosion of agricultural croplands is a significant contributor of sedimentation to reservoirs. Here, physiographic and economic models for a large agricultural watershed (2377 square miles with 27 subwatersheds) are integrated for the reduction of sedimentation of one Midwestern reservoir. Sediment reduction and the cost-effectiveness of three agricultural best management practices (no-till, filter strip, and permanent vegetation) implementation were considered under three modeling scenarios: random assignment; the globally most cost- effective approach; and a cost-effective targeting approach. This study demonstrates how physiographic and economic data can be harnessed to yield readily comprehendible cost-effective targeting maps. Cost-effective targeting may be preferable to watershed managers for its ‘‘user-friendliness’’ without too great a sacrifice of the globally most cost-efficient solution.
关键词：cost-effective targeting;cropland best management practices;reservoir sedimentation;watershed model