[Spatial Characteristics of Ecological Resilience and Its Influencing Factors in Mountainous Cities：Taking Chongqing...

Urban ecological resilience is fundamental for an ability to withstand natural disasters and climate change impacts， maintain ecological functions， promote sustainable development， and ensure residents well-being， which is crucial for long-term urban stability. This study uses Chongqing， a mega-city in a mountainous region， as a case study. It constructs an ecological resilience evaluation framework based on scale-density-morphology and employs the entropy method and Geodetector to explore the spatial characteristics and influencing factors of ecological resilience in 38 administrative units. The findings reveal： ① The spatial distribution of scale， density， and morphological resilience showed higher values in the eastern regions and lower values in the western regions， closely related to Chongqing's spatial functional structure as a typical mountainous city. ② The ecological resilience level in Chongqing gradually increased from the central urban area outwards， exhibiting a polarization-diffusion phenomenon， with the lowest level in the central urban area and higher levels in the southeast and northeast regions， which was highly correlated with the spatial heterogeneity of the mountainous city's ecological foundation and economic level. ③ In terms of single-factor influence， topographic factors and population density had the greatest explanatory power for Chongqing's urban ecological resilience， while industrial structure had the least. In terms of interaction effects， the interaction between vegetation cover and consumption level had the most significant impact on urban ecological resilience. The study suggests that ecological protection measures should be strengthened， urban spatial structure should be optimized， and investment in scientific research and education should be increased， considering the ecological foundation and social-economic activities of mountainous cities to enhance ecological resilience. This research provides a scientific basis and decision-making reference for ecological protection and sustainable development in Chongqing and other mountainous cities.