| 岗南-黄壁庄水库分区污染贡献率分析 |
| Regional Contribution Rates of Nonpoint Source Pollution to Gangnan-Huangbizhuang Reservoirs |
| 投稿时间：2020-10-23 修订日期：2021-01-26 |
| DOI：10.15928/j.1674-3075.202010230306 |
| 中文关键词:输出系数法 浓度传递系数矩阵 岗南-黄壁庄水库 面源污染 分区贡献率 串联水库 |
| 英文关键词:export coefficient method concentration transfer coefficient matrix Gangnan-Huangbizhuang reservoirs non-point source pollution NPS regional contribution cascaded reservoirs |
| 基金项目:国家水体污染控制与治理科技重大专项（2018ZX07110-006） |
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| 中文摘要: |
| 开展岗南-黄壁庄水库产汇区面源污染分区贡献率计算与分析，为具有复杂干支流特征的串联水库产汇区面源污染防治及消减提供参考。采用输出系数法与浓度传递系数矩阵相结合的方法，在子流域划分的基础上，计算各子流域面源污染对入库污染负荷贡献率，并分析入库污染空间格局。结果表明，对岗南水库入库CODCr和氨氮贡献率最大的是滹沱河干流入境水，为89.56%和76.31%；对黄壁庄水库入库CODCr和氨氮贡献率最大的是岗南水库下泄水和绵河、甘陶河入境水，二者合计贡献率占74.26%和66.58%，即上游山西来水对岗南-黄壁庄水库入库污染负荷的贡献最大。河北省境内各子流域对岗南水库贡献率均较小，大多在1%左右，郭苏河、险溢河相对较高也不超过4%；黄壁庄水库以冶河井陉-平山汇水区、南甸河和滹沱河干流岗南-黄壁庄水库区间最大，这3个子流域对入库CODCr和氨氮贡献率分别为7.12%和9.51%、4.69%和6.29%、3.53%和4.78%，应将这些区域作为岗南-黄壁庄水库产汇区面源污染优先控制区域。污染源类型上以农田径流贡献最大，占比高达70%，其次为农村生活和畜禽养殖，分别占比23%和7%，应将农田径流作为优先控制污染源。 |
| 英文摘要: |
| The Gangnan-Huangbizhuang reservoirs are cascaded reservoirs located in the Hutuo River of Hebei Province. Inflow tributaries to Gangnan reservoir include Guosu River, Wendu River and Xianyi River, and the primary inflow rivers to Huangbizhuang reservoir are Hutuo River, Yehe River and their tributaries (Nandian River, Mianhe River and Gantao River). In this study, regional contributions of non-point source pollution to the Gangnan-Huangbizhuang reservoirs were calculated and the spatial pollution patterns of the inflow rivers were then analyzed using export coefficients with a concentration transfer coefficient matrix. The aim was to provide a reference for targeting areas of high non-point source (NPS) pollution to support reduction and prevention efforts in the catchment area of cascaded reservoirs with complex tributary and sub-basin characteristics. From July to September of 2019, water quality monitoring was carried out at 26 transects according to methods included in the National Surface Water Environmental Quality Standard (GB3838-2002). Results show that the largest contribution to CODCr and ammonia nitrogen loading to Gangnan reservoir was inflow from Hutuo River, accounting respectively for 89.56% and 76.31% of the total loads. The largest contribution to CODCr and ammonia nitrogen loading to Huangbizhuang reservoir was the outflow of Gangnan reservoir and inflows from the Gantao and Mianhe Rivers, accounting respectively for 74.26% and 66.58% of the total load. These results indicate that water flowing from Shanxi Province contributes most of the pollution load to Gangnan-Huangbizhuang reservoirs. The contribution rate of each sub-basin in Hebei Province to the total pollution load of Gangnan reservoir was relatively small (~ 1%), while the contribution rates of Guosu River and Xianyi River were higher but not more than 4%. For Huangbizhuang reservoir, the largest contribution to CODCr and ammonia nitrogen loading was from the Jingxing-Pingshan section of Yehe River (7.12% and 9.51%), Nandian River (4.69% and 6.29%), and the Gangnan-Huangbizhuang section of Hutuo River (3.53% and 4.78%). These sections were designated as priority control areas for non-point source pollution reduction to protect water sources to the Gangnan-Huangbizhuang reservoirs. In terms of the pollution source types, farmland runoff contributed the most, up to 70%, followed by livestock and poultry breeding，accounting for 23% and 7%, respectively. Therefore, farmland runoff should be taken as the priority of pollution source control. |
| 聂睿,李国强,诸葛亦斯,余晓,李双双,石浩洋.2022.岗南-黄壁庄水库分区污染贡献率分析[J].水生态学杂志,43(4):71-77. |
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