SWAT Literature Database for Peer-Reviewed Journal Articles

Title:Valuing water quality benefits from adopting best management practices: A spatial approach 
Authors:Choi, D.S., R.C. Ready and J.S. Shortle 
Journal:Journal of Environmental Quality 
Volume (Issue):49 
Article ID: 
URL (non-DOI journals): 
Broad Application Category:pollutant only 
Primary Application Category:BMP and/or cropping system assessment 
Secondary Application Category:economic assessment 
Watershed Description:Spring Creek, Mahantango Creek and Conewago Creek, located respectively in central, east central and southeast Pennsylvania, U.S. 
Calibration Summary: 
Validation Summary: 
General Comments: 
Abstract:We developed a GIS-based tool that values, in a spatially explicit way, the ecosystem services generated by water quality improvements resulting from adoption of agricultural best management practices (BMPs). The tool is calibrated for watersheds in the Chesapeake Bay drainage and includes the benefits from water quality improvements within targeted watersheds, water quality improvements downstream from targeted watersheds, and reductions in pollutant loadings to Chesapeake Bay. The tool is used to investigate specific BMP scenarios adopted within specific watersheds. The results show that (i) BMP adoption generates large positive net benefits to society, with bene- fit/cost ratios ranging from 22 to 276; (ii) by selecting cost effective BMPs and placing them in the most appropriate places, the cost of meeting pollutant reduction targets would be reduced by 34–71%; and (iii) net benefits from BMP adoption are higher when they are implemented close to or upstream from population centers.