北江飞来峡库区流域非点源污染现状评价
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TV697.2;X824

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广东省水利科技创新项目(2016-22);广东省水资源节约与保护专项(201711031);广东省科技计划(2016A020223007)


Evaluation on non-point source pollution in Feilaixia Reservoir Area of Beijiang River
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    摘要:

    为深入了解北江飞来峡库区流域非点源污染现状,采用等标污染负荷法和聚类分析法对库区流域非点源污染进行了分析。结果表明:飞来峡库区流域57.79%的污染来源于生活污水,38.13%来源于畜禽养殖,应针对这两类污染源中的COD、TN、TP等污染物进行重点防治;库区10个镇区中,位于流域中上游的石灰铺镇和大站镇污染负荷占比分别为19.24%和18.80%,应着重关注这两个镇区的非点源污染情况;10个镇区可聚类为4类,位于流域中上游的石灰铺镇和大站镇属特重污染区,区域单位面积等标污染负荷平均值为218.21 mm/a;位于流域上游的望埠镇和英红区属较重度污染区,单位面积等标污染负荷平均值为163.80mm/a;另两类区域污染程度则相对较低;需对两类位于流域中上游的高污染镇区的生活污水及畜禽养殖污染进行重点防控。

    Abstract:

    To better understand the non-point source pollution status of Feilaixia Reservoir Area(FRA), equal standard pollution load method and cluster analysis method were applied to analyze the non-point source pollution of FRA. The results show that 57.79% of the pollution in the FRA comes from domestic sewage and 38.13% comes from livestock and poultry breeding, which tells that we should focus on the prevention and control of COD, TN, TP and other pollutants in these two types of pollution sources. Among the 10 townships in the reservoir area, the ratios of pollution loads in Shihuipu and Dazhan were 19.24% and 18.80% respectively. Therefore, attention should be paid to the non-point source pollution in these two townships. The 10 townships can be clustered into 4 categories: Shihuipu and Dazhan located in the middle and upper reaches of the river basin are extremely polluted areas with an average unit area pollution load of 218.21mm/a, while Wangbu and Yinghong located in the upper reaches of the river basin were heavily polluted areas with an average unit area load of 163.80mm/a. The other two types of areas have relatively low pollution levels. It is necessary to focus on the prevention and control of domestic sewage and livestock and poultry breeding pollution in two types of high pollution townships located in the middle and upper reaches of the river basin.

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陈晓丽,雷勇,黄国如.北江飞来峡库区流域非点源污染现状评价[J].水资源保护,2019,35(2):44-48.(CHEN Xiaoli, LEI Yong, HUANG Guoru. Evaluation on non-point source pollution in Feilaixia Reservoir Area of Beijiang River[J]. Water Resources Protection,2019,35(2):44-48.(in Chinese))

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  • 收稿日期:2018-06-28
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  • 在线发布日期: 2019-03-28
  • 出版日期: 2019-03-20