Targeting vs. Optimization: Critical Evaluation of BMP Implementation Plan for Watershed Management

Nonpoin source pollution of surfarce and ground waters from agricultural activities is one of the most challenging watershed management issues faced today. A total maximum daily load (TMDL) developed to control nonpoint source pollution requires decision about specific reduction in loads from various land use activities and effectiveness of best management practices in accomplishing those load reduction goals. The objective of this study was to evaluate the efficacy of targeting and optimization BMP implementation strategies in reducing sediment transport from an agricultural watershed located in Arkansas. The results indicated that both approached could be effectively used to reduce sediment transport from agricultural areas. The results can be used to evaluate economic and environmental benefits of various management options within the watershed and to develop management plans for optimizing water quality protection and agricultural production in the watershed.