| 洋河水库流域面源污染负荷空间分布特征 |
| Spatial Distribution of Non-point Source Pollution Loading in Yanghe Reservoir Watershed |
| 投稿时间：2017-02-28 修订日期：2018-11-21 |
| DOI：10.15928/j.1674-3075.2018.06.009 |
| 中文关键词:洋河水库 污染负荷 空间分布：面源污染 |
| 英文关键词:Yanghe Reservoir pollutant loading GIS analysis spatial distribution nonpoint source pollution |
| 基金项目:博士后科研项目择优资助（B2016005007）。 |
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| 中文摘要: |
| 为探究洋河水库流域面源污染的空间分布特征，基于气象、土地利用、农业管理等数据资料，计算2013年洋河水库流域农村生活污水、固体废弃物、畜禽养殖流失、化肥流失、水土流失污染和城镇地表径流污染6种污染来源中总氮（TN）、总磷（TP）、氨氮（NH3-N）、化学耗氧量（COD）4个污染物指标排放负荷，并通过GIS空间分析反映流域内的污染分布情况。结果表明，畜禽养殖污染物排泄量对研究区污染负荷贡献最大，年产生量约51621.34 t，入河量2961.52 t，占比分别为92%和85%；从总量上看，洋河水库流域的面源污染负荷分布在西洋河支流区域范围；单位面积负荷量最大的区域是迷雾河支流区域范围。据此确定了西洋河和迷雾河流域为今后洋河水库流域面源污染重点治理的区域，此研究结果可为洋河水库流域面源污染防治及消减提供理论依据。 |
| 英文摘要: |
| Yanghe Reservoir is one of the primary drinking water sources for Qinhuangdao City. The four largest reservoir tributaries are Dongyang River, Xiyang River, Miwu River and Maguying River. The aim of this study was to characterize the spatial distribution of non-point source (NPS) pollution in the Yanghe Reservoir watershed and provide a theoretical basis for controlling NPS loading to the reservoir. Data on weather, land use and agricultural management in the basin for 2013 was used to calculate the load of four pollutants (TN, TP, NH3-N and COD). Pollutant sources included domestic wastewater, solid waste, livestock and poultry breeding, chemical fertilizer loss, soil erosion and urban runoff. The spatial distribution of sources was analyzed using ArcGIS. Release of the four pollutants to the watershed amounted to 55900.55 t and river loading totaled 3476.70 t. The main pollutants reaching the rivers were COD (2519.53 t) and TN (567.43 t), with breeding of poultry and livestock identified as the primary source. Pollutant production at breeding facilities was 51621.34 t/a and the amount carried into Yanghe River was 2961.52 t/a, accounting for 92% and 85% of the calculated totals. The pollutant load from the Xiyang River watershed was the largest, followed by the Miwu River watershed. The Miwu watershed had the highest pollutant production per unit area and priority areas identified for NPS pollution control were the watersheds of the Xiyang and Miwu Rivers. |
| 陈 平,傅长锋,及晓光,李大鸣.2018.洋河水库流域面源污染负荷空间分布特征[J].水生态学杂志,39(6):58-64. |
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