| 长江流域典型区河-库水文网络连通综合评估 |
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| 引用本文： | 卜久贺,李春晖,王烜,杨薇,邵飞燕.长江流域典型区河-库水文网络连通综合评估[J].水生态学杂志,2020,41(5):55-62. |
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| 作者姓名： | 卜久贺 李春晖 王烜 杨薇 邵飞燕 |
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| 作者单位： | 北京师范大学环境学院 水沙科学教育部重点实验室 北京 100875,北京师范大学环境学院 水沙科学教育部重点实验室 北京 100875,北京师范大学环境学院 水沙科学教育部重点实验室 北京 100875,北京师范大学环境学院 水沙科学教育部重点实验室 北京 100875 |
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| 基金项目： | 国家重点研发计划项目（2017YFC0404505）；国家自然科学基金项目（52070023） |
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| 摘 要： | 长江具备丰富的水资源和电力资源，近年来河网闸坝、水电等水利设施被大量建设，导致了连通性下降，从而带来一系列的生态环境问题，评估长江流域河-库连通性具有重要意义。本研究选择长江流域高坝大库（金沙江下游）、低坝枢纽（汉江中下游）和山区小水电（景谷）三种河-库连通类型进行研究。首先概化典型研究区河-库连通的水文网络模型，并将水电站、过渡区、河流汇聚点、闸坝作为重要的网络节点。然后基于网络的水文连通功能、生态环境功能和社会贡献功能构建水文网络连通评估指标体系，利用熵权模糊综合评估方法对典型河-库进行分析。结果表明，高坝大库和低坝枢纽连通性为四级（差），山区小水电连通性为五级（极差）。并基于评估结果，对不同类型的河-库系统给出改善连通性的针对性建议。
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| 关 键 词： | 河库 过渡区 水文网络 连通性 长江流域 |
| 收稿时间： | 2020/5/25 0:00:00 |
| 修稿时间： | 2020/9/23 0:00:00 |
Comprehensive Evaluation of the Hydrologic Connectivity of River-Reservoir Systems in the Yangtze River Basin |
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| BU Jiu-he,LI Chun-hui,WANG Xuan,YANG Wei,SHAO Fei-yan.Comprehensive Evaluation of the Hydrologic Connectivity of River-Reservoir Systems in the Yangtze River Basin[J].Journal of Hydroecology,2020,41(5):55-62. |
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| Authors: | BU Jiu-he LI Chun-hui WANG Xuan YANG Wei SHAO Fei-yan |
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| Affiliation: | Key Laboratory for Water and Sediment Science of the Ministry of Education,School of Environment,Beijing Normal University,Key Laboratory for Water and Sediment Science of the Ministry of Education,School of Environment,Beijing Normal University,Key Laboratory for Water and Sediment Science of the Ministry of Education,School of Environment,Beijing Normal University,Key Laboratory for Water and Sediment Science of the Ministry of Education,School of Environment,Beijing Normal University |
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| Abstract: | The Yangtze River is rich in water resources and electric power resources. In recent years, a large number of river network sluice DAMS, hydropower stations and other water conservancy facilities have been built, leading to a decline in connectivity, which had brought about a series of ecological and environmental problems. Therefore, it is great significance to evaluate the connectivity of the river reservoir in the Yangtze River Basin. In this study, three types of river reservoir connectivity were selected in the Yangtze River basin: high dam reservoirs (lower reaches of Jinsha River), low dam reservoirs (middle and lower reaches of the Han River) and small hydropower stations of mountain area (Jinggu station). Firstly, the hydrologic network model of river reservoir connection in typical study area was generalized, and hydropower stations, transition areas, river convergence points, gates and dams were taken as important network nodes. Then the evaluation index system of hydrological network connectivity was constructed based on the hydrological connectivity function, ecological environment function and social contribution function, meanwhlie the entropy weight fuzzy comprehensive evaluation method was used to analyze the typical river-reservoir system. The results showed that the connectivity of high dams and low dams was level 4, and connectivity of small hydropower station in mountainous area was level 5. Based on the results, some suggestions for improving the connectivity of different river-reservoir systems were given. |
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| Keywords: | Reservoir Transition zone Hydrological network connectivity the Yangtze river basin |
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