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Journal of Environmental Quality Abstract -

Applications of GIS to the Modeling of NonPoint Source Pollutants in the Vadose Zone: A Conference Overview


This article in JEQ

  1. Vol. 25 No. 3, p. 403-411
    Received: Aug 24, 1995

    * Corresponding author(s):
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  1. D. L. Corwin * and
  2. R. J. Wagenet
  1. USDA-ARS, U.S. Salinity Lab., 450 West Big Springs Road, Riverside, CA 92507-4617;
    Dep. of Soil, Crop and Atmos. Sciences, Emerson Hall, Cornell Univ., Ithaca, NY 14853.



Because of their ubiquitous nature and potential chronic health effects, nonpoint source (NPS) pollutants have become a focal point of attention by the general public, particularly regarding pollution of surface and subsurface drinking water sources. The NPS pollutants pose a technical problem because of the areal extent of their contamination that increases the complexity and sheer volume of data far beyond that of point-source pollutants. The spatial nature of the NPS pollution problem necessitates the use of a geographic information system (GIS) to manipulate, retrieve, and display the large volumes of spatial data. This overview provides a brief introduction and review of the modeling of NPS pollutants with GIS and a brief discussion of some of the papers presented at the ASA-CSSA-SSSA 1995 Bouyoucos Conference entitled Applications of GIS to the Modeling of Nonpoint Source Pollutants in the Vadose Zone.

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