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

doi:10.7523/j.issn.2095-6134.2009.6.007

Abstract

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.

Key words: groundwater, agricultural non-point source contamination, numerical modeling, inverse approach

CLC Number:

X523
P641.69

YU Zi-Jing, WANG Ming-Yu, WANG Hui-Min. Numerical modeling of groundwater contamination from non-point sources of nitrogen in agricultural ecosystems[J]. , 2009, 26(6): 774-780.

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