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Research Articles

Numerical modeling of groundwater contamination from non-point sources of nitrogen in agricultural ecosystems

  • YU Zi-Jing ,
  • WANG Ming-Yu ,
  • WANG Hui-Min
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  • 1. Center for Water System Security & College of Resources and Environment, Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;
    2. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China

Received date: 2009-04-09

  Revised date: 2009-05-04

  Online published: 2009-11-15

Abstract

A numerical model is presented for simulating groundwater contamination from the non-point sources of nitrogen in an agricultural ecosystem. We successfully established a model based on only the short-term and limited observed field data and field tests through the reasonable conceptualizations, stepwise parameter calibrations, and process integrations, which made the calibrated model more reliable. The recharge rates and nitrogen loading into groundwater were obtained by the inverse modeling approach. The results obtained would be informative for quantitative understanding of groundwater contamination from the non-point sources of nitrogen in agricultural ecosystems, especially for effective monitoring and model parameter estimations.

Cite this article

YU Zi-Jing , WANG Ming-Yu , WANG Hui-Min . Numerical modeling of groundwater contamination from non-point sources of nitrogen in agricultural ecosystems[J]. Journal of University of Chinese Academy of Sciences, 2009 , 26(6) : 774 -780 . DOI: 10.7523/j.issn.2095-6134.2009.6.007

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