SWAT Literature Database for Peer-Reviewed Journal Articles

Title:Application of an environmental and economic modeling system for watershed assessments 
Authors:Gassman, P.W., E. Osei, A. Saleh and L.M. Hauck 
Journal:Journal of the American Water Resources Association 
Volume (Issue):38(2) 
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:930 km^2 Upper North Bosque River, located in north central Texas; 1,270 km^2 Lake Fork Reservoir, located in northeast Texas; 162.24 km^2 Upper Maquoketa River, located in northeast Iowa; all in U.S. 
Calibration Summary:Upper N. Bosque reported in Saleh et al. (2000); Lake Fork mean comparisons reported in Osei et al. (2003; J. Range Manage.); 6-month mean comparisons reported for Upper Maquoketa River 
Validation Summary: 
General Comments:SWAT output was generated within an integrated modeling system that included APEX and a Farm Economic Model (FEM), for several different scenarios simulated for the 3 watersheds. Predicted reductions in P losses across the three watersheds ranged from -4 to -59% for two P-based manure application rate scenarios, but the N loss impacts ranged from a decrease of 34% to an increase of 79%. The economic impacts ranged from a decrease of 27% to an increase of 25% in profit. 
Keywords:modeling; water quality; watershed management; nutrient management; crop rotations; tillage systems