Impact of controlled drainage structures on tile drainage water quality

J. K. Zuercher, Richard A C Cooke, J. K. Mitchell, M. C. Hirschi

Research output: Contribution to conferencePaper

Abstract

This paper examines six retrofitted tile drainage systems and the effect of Water Table Management (WTM) on nitrates in tile line effluent. These sites are from two different watersheds and include four irregular and two gridded tile drainage systems. One of the gridded sites has shown nitrate-loading reductions of up to 60% while under WTM, and the four irregular sites had statistically significant changes. Reductions at the gridded site were highly correlated to the time when the site was under WTM, and after release of the water table reduction percentages dropped significantly. Results are preliminary and suggestions for further research are provided.

Original languageEnglish (US)
Pages3007-3029
Number of pages23
StatePublished - Dec 1 2000
Event2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century - Milwaukee, WI., United States
Duration: Jul 9 2000Jul 12 2000

Other

Other2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century
CountryUnited States
CityMilwaukee, WI.
Period7/9/007/12/00

Keywords

  • BMP
  • Controlled Drainage
  • Nitrates
  • Water Table Management

ASJC Scopus subject areas

  • Engineering(all)

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