地理学报 ›› 2021, Vol. 76 ›› Issue (6): 1394-1407.doi: 10.11821/dlxb202106006
收稿日期:
2020-05-03
修回日期:
2021-04-14
出版日期:
2021-06-25
发布日期:
2021-08-25
通讯作者:
潘竟虎(1974-), 男, 甘肃嘉峪关人, 教授, 博士生导师, 中国地理学会会员(S110011899M), 研究方向为空间分析与感知。E-mail: panjh_nwnu@nwnu.edu.cn作者简介:
魏石梅(1993-), 女, 宁夏固原人, 博士生, 研究方向为空间分析与感知。E-mail: nwnuweism@126.com
基金资助:
Received:
2020-05-03
Revised:
2021-04-14
Published:
2021-06-25
Online:
2021-08-25
Supported by:
摘要:
随着城市间关系趋向于网络化发展以及外部急性冲击和慢性压力的增加,城市网络结构韧性作为衡量区域韧性的重要手段,致力于评估城市网络系统在面对突发故障或扰动时,能够抵御、吸收和恢复原有网络特征和重要功能的能力。以中国346个地级及以上城市为研究对象,采用2017年百度指数、腾讯人口迁徙大数据等,在构建信息、交通、经济和综合城市联系网络的基础上,从城市节点和网络层面对其层级性和匹配性进行测度,并对中断场景下网络的传输性和多样性进行分析,进而针对各网络从不同视角提出网络结构优化策略和建议。结果表明:① 2017年中国346个地级及以上城市的信息、交通、经济和综合联系网络整体上呈现以“胡焕庸线”为界的“东密西疏”的分布格局,但空间结构各有特点。② 信息、交通和经济三大网络的层级性排名依次为经济>信息>交通网络。大城市及省会城市因其信息技术的快速创新与传播、产业经济的高度发展与集聚及交通基础设施的快速配备与完善在网络中具有更高的层级。③ 信息、交通、经济三大网络均具有异配性特征。信息网络中高权重节点与低权重节点间的跨区域交流机会更多,因而具有最高的异配韧性。④ 信息网络的传输与多样韧性稍高于经济网络,远高于交通网络。同一城市节点的故障或中断在影响网络传输性的同时,也会累及网络的多样性。
魏石梅, 潘竟虎. 中国地级及以上城市网络结构韧性测度[J]. 地理学报, 2021, 76(6): 1394-1407.
WEI Shimei, PAN Jinghu. Network structure resilience of cities at the prefecture level and above in China[J]. Acta Geographica Sinica, 2021, 76(6): 1394-1407.
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