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Soil-Pesticide Grouping for Water Quality Management

by R. A. Leonard, USDA-ARS, Tifton, United States,
C. C. Truman, USDA-ARS, Tifton, United States,
F. M. Davis, USDA-ARS, Tifton, United States,
W. G. Knisel, USDA-ARS, Tifton, United States,



Document Type: Proceeding Paper

Part of: Symposium on Ground Water

Abstract:

Pesticide and soil properties contribute to changes in runoff and groundwater quality. Because pesticides have been found in runoff and ground water, those managing water quality need tools to evaluate surface and groundwater vulnerability to pesticides in complex pesticide/soil/climate/management scenarios. The purpose of this study was to demonstrate an approach to creating databases for use in soil-pesticide vulnerability maps and other management decision aids. The GLEAMS (Groundwater Loading Effects of Agricultural Management Systems) model was used to compare different soil and pesticide properties. Nine soils from the Southeastern Coastal Plain were grouped by series based on 3 surface and 7 subsurface textural classes. The grouping system was tested for potential pesticide loss by runoff, sediment, and percolation.

Subject Headings: Water quality | Groundwater quality | Soil pollution | Soil classification | Pesticides | Groundwater management | Soil water

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