| 区域尺度农田氮磷非点源污染与模型应用分析 |
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| 引用本文： | 王姗娜,梁涛.区域尺度农田氮磷非点源污染与模型应用分析[J].地球信息科学,2005,7(4):107-112. |
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| 作者姓名： | 王姗娜 梁涛 |
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| 作者单位： | 中国科学院地理科学与资源研究所,北京,100101;中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);中国科学院知识创新工程项目 |
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| 摘 要： | 分析了农田非点源污染对生态环境的危害性,并阐述农田氮、磷非点源污染的机理及其在不同自然条件下的影响因素和监测方法。同时,对农田非点源污染的定量化、应用效应等进行了对比分析。此外,结合农田非点源污染与相关模型作了应用实例分析。
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| 关 键 词： | 农田非点源污染 迁移机理 非点源模型 |
| 收稿时间： | 2005-01-15 |
| 修稿时间： | 2005-08-20 |
Analysis of Agricultural Non-point Pollution and Its Models Application |
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| WANG Shanna,LIANG Tao.Analysis of Agricultural Non-point Pollution and Its Models Application[J].Geo-information Science,2005,7(4):107-112. |
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| Authors: | WANG Shanna LIANG Tao |
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| Institution: | Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China |
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| Abstract: | Discussing the harmfulness of agricultural non-point pollution to the ecological environment. We introduce the mechanism and the inspecting method in agricultural non-point pollution. As one of the most important research fields of non-point pollution, the agricultural non-point pollution research has been accentuated and developed rapidly. This article introduces and analyzes several representative agricultural non-point pollution models and predicts the development trend of this research. So it is in possession of certain significance for the management and study. There is a very close relationship between non-point source pollution and land use in watershed. On the basis of this fact, the export coefficient modeling approach has got substantially developed. An improved export coefficient method for estimating polluting load of non-point source pollution is proposed. |
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| Keywords: | agricultural non-point pollution transferring mechanism non-point model |
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