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 
Article ID: 
URL (non-DOI journals): 
Broad Application Category:hydrologic & pollutant 
Primary Application Category:model interface 
Secondary Application Category:pollutant cycling/loss and transport 
Watershed Description:93,000 ha Upper North Bosque River (n. c. Texas); 127,000 ha Lake Fork Reservoir (northeat TX); 16,224? ha Upper Maquoketa River (northeast Iowa) 
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