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| 辽河流域上游农田水土流失非点源污染生态拦截控制技术与效果 | |
| 引用本文： | 马建,鲁彩艳,史奕,牛明芬,陈欣. 辽河流域上游农田水土流失非点源污染生态拦截控制技术与效果[J]. 农业系统科学与综合研究, 2009, 25(3): 299-301,306 |
| 作者姓名： | 马建 鲁彩艳 史奕 牛明芬 陈欣 |
| 作者单位： | 1. 中国科学院,沈阳应用生态研究所陆地生态过程重点实验室,辽宁,沈阳,110016;沈阳农业大学,辽宁,沈阳110061 2. 中国科学院,沈阳应用生态研究所陆地生态过程重点实验室,辽宁,沈阳,110016;中国科学院研究生院,北京,100049 3. 中国科学院,沈阳应用生态研究所陆地生态过程重点实验室,辽宁,沈阳,110016 4. 沈阳建筑大学,市政与环境工程学院,辽宁,沈阳,110168 |
| 基金项目： | 中国科学院知识创新工程重大项目，国家重大水专项资助 |
| 摘 要： | 针对辽河流域上游水土流失所导致的农业非点源污染,结合当地实际情况,构建植被生态拦截带和前置库组成的非点源污染生态拦截工程.初步试验结果表明:植被生态拦截带能有效地减少农田生态系统中氮、磷等营养元素的流失,能使农田土壤水土流失中的氮素向水体中的流失损失减少50%以上,磷素损失减少70%左右,但存在一吸收固定阈值;前置库能有效汇集上游水体中氮、磷等营养元素.表4,参10. |
| 关 键 词： | 农业非点源污染 生态拦截带 辽河流域 |
The Ecological Interception Technology and Effects on Controlling Farmland Non-point Source Pollution in the Upriver Area of Liaohe River Rasin |
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| MA Jian,LU Cai-yan,SHI Yi,NIU Ming-fen,CHEN Xin. The Ecological Interception Technology and Effects on Controlling Farmland Non-point Source Pollution in the Upriver Area of Liaohe River Rasin[J]. System Sciemces and Comprehensive Studies In Agriculture, 2009, 25(3): 299-301,306 | |
| Authors: | MA Jian LU Cai-yan SHI Yi NIU Ming-fen CHEN Xin |
| Abstract: | Considering the local fact, an ecological project which includes vegetative filter strips and pre-dam was built in the upriver area of Haohe River basin to reduce and control the non-point source pollution (NSP) of agriculture which results from the loss of water and soil.Based on the pilot study result, though there was a threshold of absorbing and fixing nitrogen and plmsphorus from the farmland the vegetative filter trip could at least reduce the loss of nittogen by 50 percent and phosphorus by 70 percent. The pre-dam could congregate the nitrogen and phospho-rus of water from upriver area effectivdy. |
| Keywords: | non-point pollution of agriculture vegetative filter strips Liaohe River basin |
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