Watershed Models for Predicting Nitrogen Loads from Artificially Drained Lands

  • Authors: Skaggs, R. Wayne; Chescheir, George M.; Fernandez, Glenn; Amatya, Devendra M.
  • Publication Year: 2003
  • Publication Series: Miscellaneous Publication
  • Source: Pp. 442-452 in Total Maximum Daily Load (TMDL) Environmental Regulations­II, Proceedings of the 8-2012 November 2003 Conference (Albuquerque, New Mexico USA), Publication Date 8 November 2003., ASAE Publication Number 701P1503, ed. A. Saleh.

Abstract

Non-point sources of pollutants originate at the field scale but water quality problems usually occur at the watershed or basin scale. This paper describes a series of models developed for poorly drained watersheds. The models use DRAINMOD to predict hydrology at the field scale and a range of methods to predict channel hydraulics and nitrogen transport. In-stream changes of N load are estimated with a lumped parameter exponential decay function. The models were tested using data from a 10,000 ha eastern NC watershed. The models can be used in TMDL development and implementation procedures to target application of field scale management practices to maximize reduction in nitrogen load at the watershed scale.

  • Citation: Skaggs, R. Wayne; Chescheir, George M.; Fernandez, Glenn; Amatya, Devendra M. 2003. Watershed Models for Predicting Nitrogen Loads from Artificially Drained Lands. Pp. 442-452 in Total Maximum Daily Load (TMDL) Environmental Regulations­II, Proceedings of the 8-2012 November 2003 Conference (Albuquerque, New Mexico USA), Publication Date 8 November 2003., ASAE Publication Number 701P1503, ed. A. Saleh.
  • Keywords: Drainage, BMP, Nitrogen, Watershed, DRAINMOD, Water Quality
  • Posted Date: April 1, 1980
  • Modified Date: August 22, 2006
  • Print Publications Are No Longer Available

    In an ongoing effort to be fiscally responsible, the Southern Research Station (SRS) will no longer produce and distribute hard copies of our publications. Many SRS publications are available at cost via the Government Printing Office (GPO). Electronic versions of publications may be downloaded, printed, and distributed.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
    • To view this article, download the latest version of Adobe Acrobat Reader.