| 田间一维饱和─非饱和土壤中氮素运移与转化的动力学模式研究 |
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| 引用本文： | 刘培斌,丁跃元,张瑜芳.田间一维饱和─非饱和土壤中氮素运移与转化的动力学模式研究[J].土壤学报,2000,37(4):490-498. |
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| 作者姓名： | 刘培斌 丁跃元 张瑜芳 |
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| 作者单位： | 1. 北京市水利科学研究所，北京 100044
2. 武汉水利电力大学，武昌 430072 |
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| 基金项目： | 河南省科技攻关资助项目和国家自然科学基金项目(59679028)的部分内容 |
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| 摘 要： | 建立并验证了一个排水条件下田间－维饱和－非饱和土壤中ＮＨ４＾＋－Ｎ和ＮＯ３＾－运移与转化的耦合模型，模型中考虑了有机质的矿化、氮素的吸附、硝化、反硝化、氮气挥发及作物根系吸氮等氮素转化作用过程，同时也考虑了土壤温度和湿度对氮素转化的影响。该模型可用于描述田间土壤中氮素的行为，所得结论可供农业生产实际和环境保护参考。
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| 关 键 词： | 田间饱和－非饱和土壤 氮素运移 动力学模式 一维耦合模型 化肥利用率 氮素转化 环境保护 |
| 收稿时间： | 1999/7/14 0:00:00 |
| 修稿时间： | 1999年7月14日 |
THE STUDY OF 1-DIMENSION SATURATED-UNSATURATED MATHEMATICAL MODEL OF NITROGEN TRANSPORT AND TRANSFORMATION FOR THE FIELD CONDITIONS |
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| Liu Pei-bin,Ding Yue-yuan and Zhang Yu-fang.THE STUDY OF 1-DIMENSION SATURATED-UNSATURATED MATHEMATICAL MODEL OF NITROGEN TRANSPORT AND TRANSFORMATION FOR THE FIELD CONDITIONS[J].Acta Pedologica Sinica,2000,37(4):490-498. |
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| Authors: | Liu Pei-bin Ding Yue-yuan and Zhang Yu-fang |
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| Institution: | Beijing Hydraulic Research Institute, Beijing 100044;Beijing Hydraulic Research Institute, Beijing 100044;Wuhan University of Hydraulic and Electrical Engineerning, Wuchang 430072 |
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| Abstract: | 1-dimension saturated-unsaturated mathematical model of nitrogen transport and transformation is established for the field conditions, in which important conditions, such as ion adsorption, nitrogen transformation and plant uptake are considered. It is shown by the calculation that the model is well agreed with experiment results, therefore the model
could be used for nitrogen behaviour in soil of drained fields. |
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| Keywords: | Saturated-unsaturated flow Nitrogen transport and transformation 1-dimeusion mathematical model |
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