SWAT Literature Database for Peer-Reviewed Journal Articles

Title:A global perspective on phosphorus management decision support in agriculture: Lessons learned and future directions 
Authors:Drohan, P.J., M. Bechmann, A. Buda, F. Djodjic, D. Doody, J.M. Duncan, A. Iho, P. Jordan, P.J. Kleinman, R. McDowell, P.-E. Mellander, I.A. Thomas and P.l.J.A. Withers 
Journal:Journal of Environmental Quality 
Volume (Issue):48 
Article ID: 
URL (non-DOI journals): 
Model:APEX & SWAT 
Broad Application Category:review/history 
Primary Application Category:phosphorus cycling/loss and transport 
Secondary Application Category:model and/or data comparison 
Watershed Description:None 
Calibration Summary: 
Validation Summary: 
General Comments: 
Abstract:to water bodies. In the United States, Western Europe, and New Zealand, combinations of regulatory and voluntary strategies, sometimes backed by economic incentives, have often been driven by reactive legislation to protect water bodies. Farmer specific DSSs, either based on modeling of P transfer source and transport mechanisms, or when coupled with farm-specific information or local knowledge, have typically guided best practices, education, and implementation, yet applying DSSs in data poor catchments and/or where user adoption is poor hampers the effectiveness of these systems. Recent developments focused on integrated digital mapping of hydrologically sensitive areas and critical source areas, sometimes using real-time data and weather forecasting, have rapidly advanced runoff modeling and education. Advances in technology related to monitoring, imaging, sensors, remote sensing, and analytical instrumentation will facilitate the development of DSSs that can predict heterogeneity over wider geographical areas. However, significant challenges remain in developing DSSs that incorporate “big data” in a format that is acceptable to users, and that adequately accounts for catchment variability, farming systems, and farmer behavior. Future efforts will undoubtedly focus on improving efficiency and conserving phosphate rock reserves in the face of future scarcity or prohibitive cost. Most importantly, the principles reviewed here are critical for sustainable agriculture.