chapter  5
26 Pages

Phosphorus Transport in Streams: Processes and Modeling Considerations

Modeling of phosphorus (P) transport from the landscape to aquatic systems represents a number of complex processes, including rainfall-runoff patterns, manure and fertilizer application, soil-water-P interactions, and crop and forage growth. Numerous processbased models are available to accomplish this task, and many of these models are discussed in other chapters of this book. These models integrate large amounts of

information to simulate catchment-scale P transport from the landscape. They have been reasonably successful in predicting catchment-scale to edge-of-field losses of P and how nutrient and land management affects these losses. However, a major gap in predicting the response of receiving water bodies is the simulation of fluvial processes occurring during P transport from landscape (edge of field) to receiving waters.