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Automated Spatial Allocation of BMPs for Watershed-Scale Nitrogen Management

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  033036,  2003 ASAE Annual Meeting . (doi: 10.13031/2013.14999) @2003
Authors:   Kouroush Sadeghzadeh, Adel Shirmohammadi, Hubert J. Montas, Ali Sadeghi
Keywords:   Decision Support System, Expert System, Critical Areas, Best Management Practices

A Decision Support System centered on the use of ERDAS IMAGINE, and the embedded subsurface flow model Hydrosub, is used to identify critical areas from simulated spatial distributions of relative Nitrogen Export. Diagnosis and prescription Expert Systems are developed and applied to the identification of probable causes of excessive Nitrogen export and selection of appropriate BMPs. The result is a spatially-distributed set of appropriate Best Management Practices ( BMPs) that are feasible economically and environmentally. For the study watershed, using catch crops and Rhizobium-Legume (instead of using conventional commercial fertilizers) were most often recommended as the most appropriate Best Management Practices.

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