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Nitrate in groundwater of the midwestern United States: A regional investigation on relations to land use and soil properties

IAHS-AISH Publication

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Abstract

The intense application of nitrogen-fertilizer to cropland in the midwestern United States has created concern about nitrate contamination of the region's aquifers. Since 1991, the US Geological Survey has used a network of 303 wells to investigate the regional distribution of nitrate in near-surface aquifers of the midwestern United States. Detailed land use and soil data were compiled within a 2 km radius of 100 unconsolidated wells in the regional network to determine relations to nitrate concentrations in groundwater. For land use, the amount of irrigated land was directly related to nitrate concentrations in groundwater. For soils, the general water table depth and soil factors associated with rates of water movement were directly related to nitrate concentrations in groundwater.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Nitrate in groundwater of the midwestern United States: A regional investigation on relations to land use and soil properties
Series title:
IAHS-AISH Publication
Issue:
257
Year Published:
1999
Language:
English
Publisher:
IAHS
Publisher location:
Houston, TX, United States
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
IAHS-AISH Publication
First page:
111
Last page:
116
Conference Title:
Proceedings of the 1999 IUGG 99, the XXII General Assembly of the International Union of Geodesy and Geophysics
Conference Location:
Birmingham, UK
Conference Date:
18 July 1999 through 30 July 1999