Process-based Model of Nitrate fate in Terrestrial Ecosystems: A Review
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Abstract:
In this paper, development and applications of the nitrate behavior simulation of six models, SWAT, AnnAGNPS, HSPF, RZWQM, BASINS and GLEAMS, as examples, were described in the terrestrial ecosystem. The theory and problems of nitrate process in models were analyzed, pointing out that the methods of nitrogen transformation process involved in the microorganisms, the process of nitrogen, crop coupling mechanism and quantitative methods that require in-depth experimental study to explore their mechanisms and to improve the performance of model simulation and prediction. The article also pointed out that the vast majority of one-dimensional scale model in the fields should draw on regional biogeochemical cycle simulation or a distributed hydrological model coupling scale expansion. Watershed scale model should further enhance the coupling of a number of environmental process simulation studies. And the development directions of the SWAT, AnnAGNPS model also were pointed out in detail.
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