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白洋淀水系结构连通性评价
引用本文:高婷,尹心安,何 山,赵彦伟.白洋淀水系结构连通性评价[J].水生态学杂志,2020,41(5):63-69.
作者姓名:高婷  尹心安  何 山  赵彦伟
作者单位:北京师范大学 环境学院,水环境模拟国家重点实验室,北京师范大学 环境学院,水环境模拟国家重点实验室,北京师范大学 环境学院,水环境模拟国家重点实验室,北京师范大学 环境学院,水环境模拟国家重点实验室
基金项目:国家重点研发计划项目(2017YFC0404504),国家自然科学基金创新研究群体项目(51721093) 水污染控制与治理科技重大专项(2018ZX07110001)
摘    要:水系结构连通性评价是实现河湖连通的基础,为构建生态水网,提升水体连续性提供决策依据。现有评价方法多集中于连通概率及强度方面,忽略了结构稳定性的评估。有效探究水系在外界干扰下的连通稳定程度,可为水资源开发利用提供科学指导。以白洋淀为例,基于复杂网络分析法,考虑水网稳定性,建立包括水面率、水系连通度及水系结构稳定性三大要素,共七个指标的评价体系,采用熵权法与层次分析法耦合赋权及综合指数评价法,评估淀区水系结构连通性。结果表明,较之2007年,2017年淀区综合连通指数由0.7524下降至0.4235,区域孤立湖泊增多,连通强度及结构稳定性皆有所降低。

关 键 词:白洋淀  水系结构连通性  稳定性  评价
收稿时间:2020/5/26 0:00:00
修稿时间:2020/9/24 0:00:00

Structural Connectivity Evaluation of the Baiyangdian Lake Water System
GAO Ting,YIN Xin-an,HE Shan,ZHAO Yan-wei.Structural Connectivity Evaluation of the Baiyangdian Lake Water System[J].Journal of Hydroecology,2020,41(5):63-69.
Authors:GAO Ting  YIN Xin-an  HE Shan  ZHAO Yan-wei
Institution:School of Environment,State Key Laboratory of Water Environmental Simulation,Beijing Normal University,School of Environment,State Key Laboratory of Water Environmental Simulation,Beijing Normal University,School of Environment,State Key Laboratory of Water Environmental Simulation,Beijing Normal University,School of Environment,State Key Laboratory of Water Environmental Simulation,Beijing Normal University
Abstract:The evaluation of structural connectivity for water system is the basis for connecting rivers and lakes, which will provide suggestions for decision-making to build an ecological water network and improve the continuity of water bodies. Previous studies always focused on connected probability and strength, and ignored the evaluation of structural stability. Exploring the connected stability of the water system under external interference effectively can provide scientific guidance for the development and utilization of water resources. Based on the complex network analysis method, taking Baiyangdian Lake as an example and considering the stability of the water network, an evaluation system with a total of seven indicators was established, which includes the three elements: water surface ratio, water system connectivity and water system structural stability. Entropy weight method and analytic hierarchy process are used to couple weighting, and combine with comprehensive index evaluation method to evaluate the structural connectivity of the water system. The results show, compared with 2007, the comprehensive connectivity index of Baiyangdian Lake dropped from 0.7524 to 0.4235 in 2017. The number of isolated lakes in the region were increased, and the strength and stability of connectivity were all weakening.
Keywords:Baiyangdian Lake  Connectivity of water system structure  Stability    Evaluation
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