The spatiotemporal evolution and influencing factors of resilience of county-level cities in the East China Sea coastal zone based on"background-operation-efficiency"
As the frontier of China's land and sea economic development,the coastal zone of the East China Sea(ECS)has witnessed a significant escalation of urban risks against a backdrop of high-intensity utilization.Research on urban resilience provides a basis for mitigating the impact of human activities and natural disasters,holding crucial significance for the sustainable socioeconomic development of coastal cities.Taking into account both resilience capabilities and resource environmental costs,we established a"background-operation-efficiency"evaluation system to analyze the spatiotemporal evolution characteristics of urban resilience at the county scale in the ECS coastal zone.Additionally,geographic detectors and GTWR models were employed to investigate the influencing factors of resilience operation capacity.The results show that:(1)The resilience background capacity of county-level cities in the study area continues to increase,and the spatial pattern is relatively stable.It exhibits a distribution trend with a higher level in Shanghai,a higher level in northern Zhejiang but a lower level in southern Zhejiang,a higher level in the middle of Fujian while a.lower level in the north and south of Fujian.Generally,cities tend to cluster homogeneously,mainly forming low-low agglomerations.(2)The resilience operation capacity of county-level cities has steadily improved,showing a positional pattern of Shanghai＞Zhejiang＞Fujian.High value areas are concentrated in urban areas,presenting a spatial evolution pattern of resilience operation in two stages of polarization and diffusion.Cities in the ECS coastal zone generally exhibit low-low agglomerations.(3)The resilience efficiency of county-level cities initially decreases,then slowly increases before rapidly increasing.High value areas are mostly distributed in urban areas and island cities.The most common city type is"low background-low operation-medium efficiency",and there are many cities of the"low background-low operation-low efficiency"and"medium background-medium operation-low efficiency"types;(4)The level of economic development is the primary factor influencing the resilience operation capabilities of county-level cities in the ECS coastal zone,but its impact tends to weaken.The influence of urban openness and infrastructure level is increasing,while that of urbanization level and urban agglomeration level is gradually diminishing.
urban resiliencespatiotemporal evolutioninfluencing factorsEast China Sea coastal zone
万方数据
维普
