| 农业区氨氮流失模型 |
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| 引用本文： | 徐向阳 刘俊. 农业区氨氮流失模型[J]. 环境污染与防治, 1999, 21(4): 34-37 |
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| 作者姓名： | 徐向阳 刘俊 |
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| 作者单位： | 河海大学水文水资源及环境学院!南京210098 |
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| 基金项目： | 国家自然科学基金!（59379391） |
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| 摘 要： | 定量分析了农田降水、产流，下渗，排水，蒸散发，灌溉之间的关系并提出相应的数学方程式，采用Ｌａｎｇｍｕｉｒ等温线动态描述土壤中氨氮吸附与两相平衡状态，在此基础上，建立了一个模拟随农业排水和产沙的充失数学模型，并以江苏省锡澄农业区为例说明了这一模型的应用。
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| 关 键 词： | 氨氮 排水 流失模型 农业区 农业排水 |
A mathematical model of ammonium nitrogen loss from farmland |
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| Xu Xiangyang,Liu Jun. A mathematical model of ammonium nitrogen loss from farmland[J]. Environmental Pollution & Control, 1999, 21(4): 34-37 |
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| Authors: | Xu Xiangyang Liu Jun |
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| Abstract: | The relations among precipitation, runoff, infiltration, drainage, evaporation and irrigation were analyzed and corresponding mathematical equations were proposed. The Langmuir isothermohyps were used to describe the balance relationship between absorption and dissolution of ammonium nitrogen in soil. On the basis, a mathematical model was established to simulate ammonium nitrogen loss from farmland and it was demonstrated by an example of Xicheng Region in Jiangsu Province. |
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| Keywords: | Ammonium nitrogen Drainage Loss Model |
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