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The complex ecological network's resilience of the Wuhan metropolitan area
发布时间:2021-12-08 编辑: 点击次数:546

英文标题:The complex ecological network's resilience of the Wuhan metropolitan area

作者:王韬,李红波*,黄悦

来源:Ecological Indicators Volume 130, 2021. DOI: 10.1016/j.ecolind.2021.108101

英文摘要:With rapid urbanization and frequent disasters, regional ecosystem resilience decreased continuously. Strengthening the resilience of the ecological network is conducive to improving the ecological benefits and the quality of ecological products. The research on the resilience of ecological networks is increasingly concerned, and it is necessary to construct a comprehensive research framework to evaluate the resilience of ecological networks. Taking Wuhan metropolitan area as a case, this research aimed to constructs an ecological network and evaluates network resilience from the perspective of complex networks. Firstly, we construct the evaluation Index of network resilience from the structure and function dimensions. Secondly, regions with high importance are selected as ecological sources according to the evaluation of landscape connectivity. Thirdly, the MCR model is used to establish the ecological network. Finally, we analyzed the resilience characteristics of the network under different node failure scenarios. The results show that: (1) Ecological nodes correspond to a wide variety of land types, including forest, water bodies, croplands, and urban and build-up; (2) The overall ecological connection of the ecological corridor is relatively high and the main components of the landscape are croplands, forest and water bodies; (3) The trend of structural and functional resilience does not always show convergence under different shock simulation which is related to the redundancy of networks. The research results will help to analyze the network and regional resilience and provide references for the optimization of ecological networks and the improvement of sustainable ecosystem management and restoration.

中文简介:文章以武汉都市圈为例,运用复杂网络方法探讨城市群生态网络应对外界冲击下韧性的变化特征,并分析影响其韧性水平的关键机制,进而对生态网络结构优化和功能强化提出建议。论文的主要贡献在于两个方面:理论框架与韧性评估方法。从理论的角度来看,基于生态网络“点-线-面”的三个层次,从结构和功能两个维度解读了生态网络韧性的概念与内涵。从方法论的角度来看,通过冲击模拟下的网络韧性变化判断了节点的重要性,揭示了结构韧性和功能韧性之间的非趋同性。