College of Water Resources, North China University of Water Resources and Electric Power, No. 136, Jinshui East Road, Zhengzhou, 450046, People's Republic of China.
School of Foreign Studies, North China University of Water Resources and Electric Power, Zhengzhou, 450045, China.
Environ Sci Pollut Res Int. 2022 Sep;29(43):65128-65143. doi: 10.1007/s11356-022-20252-8. Epub 2022 Apr 28.
The aquatic ecological health status was focused on the Huai River Basin (HRB) from the aspects of water quantity, water quality, water ecology, river connectivity, and riparian habitat environment. Ten monitoring sections were set up in the middle and upper reaches of HRB, and 5 experiments of each section were conducted in July and December from 2012 to 2014. Thus, relevant data on the species, the density of phytoplankton, zooplankton and benthic animals, the concentration of water physicochemical variables, and riparian habitat quality were obtained. Eleven key impact factors were chosen using frequency statistics, theoretical analysis, and correlation analysis methods, forming the evaluation index system of aquatic ecological health. Then, the indicator weight value was determined by the combined weight method, and the health degree was evaluated by the comprehensive index method. On the whole, the aquatic ecological health degree of the upper sections (D1 ~ D3) of the Shaying River ranges from 0.334 to 0.927, which is generally in a "sub-healthy" state. The aquatic ecological health degree of the main section of the Huai River (D8 ~ D10) ranges from 0.362 to 0.777, which is in the "critical" or "sub-healthy" state. The Huaidian Sluice (D5) and Fuyang Sluice (D6) in the middle and lower reaches of the Shaying River had the worst aquatic ecological health. Its water ecological health range is 0.283-0.523, and most of them are under "sub-pathologic." The research results have important theoretical and practical significance. They can enrich the evaluation theories and methods of river aquatic ecological health, help to grasp the aquatic ecological health status in HRB, and provide basic support for aquatic ecological protection and water pollution control in sluice-controlled rivers.
本研究聚焦淮河流域，从水量、水质、水生态、河流连通性和河岸带生境环境等方面，对其进行了水生生态健康评价。在淮河流域中游和上游共设置了 10 个监测断面，于 2012 年至 2014 年 7 月和 12 月，在每个断面开展了 5 个实验，获取了浮游植物、浮游动物和底栖动物的种类和密度、水质理化指标和河岸带生境质量等相关数据。采用频率统计、理论分析和相关分析方法，筛选出 11 个关键影响因子，构建了水生生态健康评价指标体系。然后，采用组合赋权法确定指标权重值，采用综合指数法评价健康程度。结果表明，沙颍河上游段（D1-D3）的水生生态健康程度在 0.334-0.927 之间，整体处于“亚健康”状态。淮河干流段（D8-D10）的水生生态健康程度在 0.362-0.777 之间，处于“临界”或“亚健康”状态。沙颍河中、下游的槐店闸（D5）和阜阳闸（D6）的水生生态健康状况最差，其水生态健康范围为 0.283-0.523，均处于“亚病态”。研究结果丰富了河流型水生生态健康评价理论和方法，有助于掌握淮河流域的水生生态健康状况，为闸控河流的水生态保护和水污染控制提供了基础支撑，具有重要的理论和实践意义。
