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NATIONAL WATER-QUALITY ASSESSMENT PROGRAM

Water and Agricultural-Chemical Transport in a Midwestern, Tile-Drained Watershed: Implications for Conservation Practices

U.S. Geological Survey Fact Sheet 2007–3084 (Published November 2007)

By Nancy T. Baker, Wesley W. Stone, Jeffrey W. Frey, and John T. Wilson


This report is available below as a 6-page PDF for viewing and printing.


Introduction

An understanding of water movement and chemical properties is necessary for understanding how agricultural chemicals (nutrients and pesticides) move from the field surface to streams and ground water. Effective conservation practices should account for the interdependent influences between water movement and chemical properties to reduce agricultural-chemical transport to streams and ground water. Environmental managers need to understand that conservation practices designed to control agricultural-chemical transport along one pathway, for example in runoff, may have an undesirable effect in controlling transport along another pathway, for example through soils.

Contents

Introduction

Study Area

Water-Transport Pathways

Nutrient-Transport Pathways

Understanding Nutrients

Pesticide-Transport Pathways

Understanding Pesticides

What are the Implications for Conservation Practices?

Examples of Typical Conservation Practices in Midwestern Watersheds

Implications

Conclusions

Acknowledgments

References

Figures

  1. Location of Leary Weber Ditch Watershed, Hancock County, Ind.
  2. Water-transport pathways in Leary Weber Ditch Watershed, Hancock County, Ind.
  3. Nutrient transport pathways in Leary Weber Ditch Watershed, Hancock County, Ind.
  4. Pesticide transport pathways in Leary Weber Ditch Watershed, Hancock County, Ind.


Availability

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Whole report (5.58 MB) - 6 pages (8.5" by 11" paper)


Suggested Citation:


Baker, Nancy T., Stone, Wesley W., Frey, Jeffrey W., and Wilson, John T., 2007, Water and Agricultural-Chemical Transport in a Midwestern,
Tile-Drained Watershed—Implications for Conservation Practices: U.S. Geological Survey Fact Sheet 2007–5035, 6 p.




For more information about activities of the USGS National Water-Quality Assessment (NAWQA) Program, visit the NAWQA home page.




U.S. Department of the Interior, U.S. Geological Survey
Persistent URL: https://pubs.usgs.gov/fs/2007/3084
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Page Last Modified: Tuesday, 29-Nov-2016 18:07:59 EST

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