Management of diffuse pollution in agricultural watersheds: lessons from the minnesota river basin

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• 作者：Brezonik ; Patrick L. ; Easter ; K. W. ; Hatch ; Lorin ; Mulla ; David ; Perry ; James
• 关键词：Agro-ecoregions ; ecoregions ; Minnesota River ; scales ; watersheds ; watershed management
• 刊名：Water Science and Technology
• 出版年：1999
• 出版时间：1999
• 年：1999
• 卷：39
• 期：1
• 页码：323-330
• 全文大小：549 K

文摘

The Minnesota River (Minnesota, USA) receives large non-point source pollutant loads. Complex interactions between agricultural, state agency, environmental groups, and issues of scale make watershed management difficult. Subdividing the basin's 12 major watersheds into agro-ecoregions based on soil type, geology, steepness, and climate enhances predictability of stream water quality parameters. An eight-step framework for agricultural watershed management is presented.