Project Number: 1902-13000-012-20
Start Date: May 01, 2012
End Date: Apr 30, 2013
The general approach will be to conduct computer simulation modeling in select watersheds to compare edge-of-field phosphorus (P) loss estimates with SWAT (Soil Water Assessment Tool) with predictions of phosphorus loss potential with the P Index. Up to four watersheds (WE-38, PA; St. Joe’s, IN; Riesel, TX; Goodwater Creek, MO) will be included. At each watershed, historical monitoring data will be used to calibrate SWAT so that the model accurately represents local processes controlling P loss at field and watershed scales. Where necessary, activities will include measuring and analyzing P transport under different management systems and across a range of conditions. Activities will involve coordination with Lee Norfleet of NRCS, Doug Smith of ARS, Daren Harmel of ARS, and Andrew Sharpley of University of Arkansas (coordinating SERA-17 590 Standard Task Force).