SWAT Literature Database for Peer-Reviewed Journal Articles

Title:Application of SWAT in the evaluation of salmon habitat remediation policy 
Authors:Whittaker, G 
Journal:Hydrological Processes 
Volume (Issue):19(3) 
Article ID: 
URL (non-DOI journals): 
Broad Application Category:hydrologic and pollutant 
Primary Application Category:model and/or data interface 
Secondary Application Category:pollutant cycling/loss and transport 
Watershed Description:Columbia Plateua region (U.S. Northwest; Washington, Oregon, Idaho, Montana) 
Calibration Summary:No calibration was performed; SWAT mean water yield estimates were found to adequately reflect observed means, but variance was underestimated (determined using a bootstrap-t method with 1,000 draws) 
Validation Summary: 
General Comments:SWAT 98.2 was interfaced with a type of linear programming model referred to as a data envelope analysis (DEA), which assumes that a farm operator's goal is to maximize profits. Two N fertilizer policies were evalulated: a 25% N rate reduction (gov. command & control) versus a 300% tax on N fertilizer (reflecting inelastic demand for N fert.). The command & control policy resulted in similar results as the tax incentive policy for some of the subwatersheds (USGS 8-digit watersheds), but was more costly in most of the subwatershed regions. The approach of interfacing SWAT with an economic model was stated to provide a much more comprehensive set of both environmental & economic indicators. 
Keywords:SWAT; environmental policy; data envelopment analysis