Skip to content

Export Coefficient Modeling to Assess Phosphorus Loading in an Urban Watershed

by Jennifer G. Winter, Hamish C. Duthie
Journal of the American Water Resources Association ()
Get full text at journal

Abstract

An export coefficient modelling approach was used to assess the influence of land use on phosphorus loading to a Southern Ontario (USA) stream. A model was constructed for the 1995-96 water year and calibrated within+or-3 percent of the observed mean concentration of total phosphorus. It was found that runoff from urban areas contributed most to the loading of phosphorus to the stream. When the model was assessed by running it for the 1977-78 water year, using water quality and land use data collected independently, agreement within+or-7 percent was obtained. The model was then used to forecast the impact of future urban development proposed for the watershed, in terms of phosphorus loading, and to evaluate the reduction in loading resulting from several urban best management practices (BMP). It was determined that phosphorus removal will have to be applied to all the urban runoff from the watershed to appreciably reduce stream phosphorus concentration. Of the BMP designs assessed, an infiltration pond system resulted in the greatest phosphorus load reduction, 50 percent from the 1995-96 baseline.

Cite this document (BETA)

Readership Statistics

22 Readers on Mendeley
by Discipline
 
45% Environmental Science
 
27% Engineering
 
18% Earth and Planetary Sciences
by Academic Status
 
23% Student > Ph. D. Student
 
23% Student > Master
 
23% Researcher
by Country
 
9% Canada
 
5% Australia
 
5% United States

Sign up today - FREE

Mendeley saves you time finding and organizing research. Learn more

  • All your research in one place
  • Add and import papers easily
  • Access it anywhere, anytime

Start using Mendeley in seconds!

Sign up & Download

Already have an account? Sign in