University of Illinois Urbana-Champaign

Applications of GIS databases and water quality modeling for agricultural nonpoint source pollution control

Lee, Ming T.; White, David C.

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https://hdl.handle.net/2142/89766

Description

Title
Applications of GIS databases and water quality modeling for agricultural nonpoint source pollution control
Author(s)
  • Lee, Ming T.
  • White, David C.
Contributor(s)
  • University of Illinois at Urbana-Champaign
  • Illinois State Water Survey
Issue Date
1992
Keyword(s)
  • Water resource development
  • Water resource development--Illinois
  • Agriculture
  • Geographic information systems
  • Water quality modeling
  • Pollution control
Geographic Coverage
Illinois (state)
Abstract
Physical and economic effects of nonpoint source pollution were analyzed by using the Geographic Information System (GIS) and an Agricultural Nonpoint Source Pollution (AGNPS) water quality model. The Highland Silver Lake watershed, a 50-square-mile drainage basin, was used as the test site. The GIS database consists of map layers of soil type, land use, farm boundaries, best management practices (BMPs), stream, scanned aerial photography, and digital elevation models DEMs). Water quality modeling was conducted before and after BMP implementation Soil erosion rate and sediment transport were used as an example of a pollution source and its transport. The pollution potential rating for each cell (10 acres) was assessed by considering both soil erosion rate and sediment delivery ratios to the receiving waters. Then a combination of economic costs and pollution potential were rated based on the model user's own criteria. The method established could be used as a tool for incorporating the on-site water quality sources, their off-site transport capacities, economic costs, and the model user's criteria. The potential of GIs technology for nonpoint source pollution management are discussed. Additional research is also suggested.
Publisher
University of Illinois at Urbana-Champaign. Water Resources Center
Series/Report Name or Number
  • ISWS Contract Report CR 544
  • Water Resource Center Research Report no. 214
Type of Resource
text
Language
en
Permalink
http://hdl.handle.net/2142/89766
Sponsor(s)/Grant Number(s)
  • U.S. Department of the Interior
  • U.S. Geological Survey
Copyright and License Information
Copyright 1992 held by Ming T. Lee, David C. White

Owning Collections

Illinois Water Resources Center - Agriculture PRIMARY
Contract Reports - Illinois State Water Survey
Report series published by the Illinois State Water Survey from 1953 - date (ISSN 0733-3927)