立足我国正适度超前部署新型基础设施建设的时代背景，构建“生态-经济-社会-设施”四维城市韧性分析框架，采用时空极差熵权-TOPSIS法测算2011—2022年长江中游经济区31个城市的韧性水平，运用核密度估计法、自然断点法分析区域城市韧性的时空演进，并借助障碍度模型进一步识别主要障碍因子。研究结果表明：2011—2022年长江中游经济区的总体韧性水平呈现上升趋势，但2015年、2020年出现两次拐点；城市间韧性水平出现分化、等级差距明显，形成了以武汉、长沙和南昌为核心的三大分区，并呈现东南高西北低的分布格局；制约长江中游经济区城市韧性提升的主要障碍因子集中在社会韧性和设施韧性两个维度。因此，从强化区域合作、社会保障、数智赋能等方面提出对策建议，以助力长江中游经济区高质量发展与高水平安全。

Against the backdrop of China’s proactive deployment of new infrastructure, this study constructs a four- dimensional analytical framework of urban resilience-ecological, economic, social, and infrastructural. The resilience levels of 31 cities in Middle Reaches of the Yangtze River Economic Zone from 2011 to 2022 is measured by using the spatio-temporal entropy weighted-TOPSIS model. Kernel density estimation and natural breaks classification are employed to examine the spatio-temporal evolution of resilience, while the obstacle degree model is applied to identify the major hindering factors. The results show that the overall resilience in the region showed an upward trend from 2011 to 2022 with two inflection points in 2015 and 2020. Significant disparities emerged among cities, forming a hierarchical pattern with three sub-regional cores centered on Wuhan, Changsha, and Nanchang, and a spatial distribution characterized by higher resilience in the southeast and lower resilience in the northwest. The main obstacles to resilience improvement are concentrated in the dimensions of social resilience and infrastructural resilience. Accordingly, policy recommendations are proposed in terms of strengthening regional cooperation, enhancing social security, and promoting digital-intelligent empowerment, with a view to advancing high-quality development and high-level security in Middle Reaches of the Yangtze River Economic Zone.

TU984.2

湖南省自然科学基金项目（2021JJ30368）；长沙市自然科学基金项目（kq2502029）；湖南省教育厅科学研究重点项目（23A0166）