Evaluating measures to control the impact of agricultural phosphorus on water quality

Heathwaite, A. Louise and Sharpley, A. (1999) Evaluating measures to control the impact of agricultural phosphorus on water quality. Water Science & Technology, 39 (12). pp. 149-155.

Abstract

Current issues in phosphorus loss from non-point sources are reviewed. The need to balance both source and transport control mechanisms in field approaches aimed at controlling P loss from agricultural land is explored. Other control measures such as P source manipulation are evaluated. A case is made for integrating work on P loss at various research scales, from plot to hillslope to catchment, and a simple field-scale model to evaluate the factors controlling P loss in surface runoff is presented.