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首页> 外文期刊>Canadian Agricultural Engineering >The development of models simulating nitrogen transport in soil and manure.
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The development of models simulating nitrogen transport in soil and manure.

机译：模拟土壤和肥料中氮运移的模型的发展。

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Three submodels were developed for simulating the transport of N in a manure-amended soil. RUNOFF and LEACH are the submodels for simulating N losses by runoff after a rainfall and for leaching into the subsoil. The effects of soil adsorption and the presence of both micro and macropores were considered in the development of LEACH. The simulation of adsorption was accomplished by a third model called ADSORP which was coupled with LEACH. The consideration of macropores in addition to micropores contributed towards a more realistic simulation of leaching and adsorption in the soil. The three submodels were integrated into a model called MANIMEA (Manurial Nitrogen Management: Environmental Aspects). The MANIMEA model simulated the transformation andtransport processes affecting N in a manure-soil system for a specified soil and meteorological conditions so as to predict the fate and distribution of N in this system. Such a model is a useful tool in the management of manure application so as to lessen the environmental impact of this manure. The integration of RUNOFF, LEACH, and ADSORP into MANIMEA was successfully realized. The simulation results indicated that the submodels were able to generate results that fell within reasonable limits.
机译：开发了三个子模型来模拟氮在肥料改良土壤中的迁移。 RUNOFF和LEACH是子模型，用于模拟降雨后径流造成的N损失并淋溶到地下土壤中。在LEACH的开发过程中考虑了土壤吸附的影响以及微孔和大孔的存在。吸附的模拟是通过称为ADSORP的第三个模型与LEACH耦合完成的。除微孔外，还考虑了大孔，这有助于更真实地模拟土壤中的浸出和吸附。这三个子模型被集成到称为MANIMEA（人工氮管理：环境方面）的模型中。 MANIMEA模型针对特定的土壤和气象条件，模拟了肥料-土壤系统中影响氮的转化和运输过程，从而预测了该系统中氮的命运和分布。这样的模型在粪便施用管理中是有用的工具，以减轻这种粪便对环境的影响。成功地将RUNOFF，LEACH和ADSORP集成到MANIMEA中。仿真结果表明，子模型能够生成落在合理范围内的结果。

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