不同河岸带修复策略对氮磷非点源污染的净化作用

被引：10

作者：

赵鹏 ^{[1
]}

胡艳芳 ^{[1
]}

林峻宇 ^{[2
]}

机构：

[1] 不详

[2] 环境保护部华南环境科学研究所

[3] 不详

[4] 中山大学环境科学与工程学院

[5] 不详

来源：

中国环境科学 | 2015年 / 07期

关键词：

非点源污染; 河岸带; 情景模拟; 流溪河;

D O I：

暂无

中图分类号：

X52 [水体污染及其防治];

学科分类号：

0815 ;

摘要：

选择北江的重要支流流溪河流域为研究对象,基于现有河岸带对非点源污染削减作用的模拟结果,采用情景分析法,预测不同河岸带修复策略对非点源污染的削减作用,使用效益-成本指数表征TN和TP削减率提高幅度与增加河岸带面积的关系,比较不同河岸带修复策略的效率.结果表明:河岸带对TN和TP的削减能力具有较大的空间差异性.各修复情景都在不同程度上提高了河岸带对TN和TP的削减率（TN:23.36%30.72%;TP:27.19%39.86%）,河岸带增加总面积与削减率呈现对数增长关系（P<0.05）.选择综合考虑了流域非点源负荷量以及河岸带状况的优先修复子流域进行河岸带修复时,效益-成本指数达最高为1.19%.

引用

页码：2160 / 2170

页数：11

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