长江经济带民航城市网络的空间复杂性与结构韧性

Spatial Complexity and Structural Resilience of the Civil Aviation Cities Network in the Yangtze River Economic Belt

以长江经济带71个机场城市为节点,构建有向加权的民航城市网络,从网络连接性、连通性、接续性和集聚性入手分析其空间复杂性,利用中断模拟的方式对其结构韧性进行评价。结果表明:(1)网络联系存在“马太效应”,少数城市承担了主要航空联系,并表现出东西两大空间阵营的“鞍”形格局,“轴-辐”伺服结构尚未完全形成。(2)边缘城市航空连通性强于中部城市,并在云南形成局部航空网络,具有显著的超平面特征。(3)网络韧性总体较强,在节点遭受中断时表现出接续替代效应,存在级联失效风险,少数区域性机场城市具有较强的局部控制力。

Taking 71 airport cities in the Yangtze River Economic Belt as nodes to construct a directional weighted civil aviation network.Its spatial complexity was analyzed from the linkage connectivity,continuity and agglomeration,and its structure resilience was analyzed by interruption simulation.The following conclusions were obtained:(1)The civil aviation cities network has the characteristics of“Matthew effect”,connections are concentrated in a few cities,and shows the“saddle-shaped”pattern with east and west space camps,and the“axis-spoke”structure has not formed yet.(2)The aviation connectivity of edge cities is stronger than that of central cities,and a local aviation network with Kunming City as the core is formed in Yunnan Province,which has significant hyperplane characteristics.(3)The aviation network resilience is relatively strong.When the node is interrupted,it shows a continuous substitution effect,there is a risk of cascading failure,and there are a few regional airport cities with strong local control.