Abstract:

The improvement of urban ecological resilience in the cold and arid regions of northwest China is not only related to the hydrological balance and sustainable development of the northwest region， but also to China's ecological security pattern and the implementation of major strategies. This article takes urban ecological resilience in the cold and arid region of northwest China as the research object and constructs a measurement framework for urban ecological resilience in the cold and arid region of northwest China based on the three-dimensional dynamic perspective of "resistance-adaptation-recovery". On this basis， the entropy weight method was used to measure urban ecological resilience in the cold and arid regions of northwest China from 2014 to 2024， and the kernel density estimation function and fuzzy set qualitative comparative analysis were used to describe its dynamic evolution and configuration path. The results show that： （1） The overall level of urban ecological resilience in the cold and arid regions of northwest China is low， and uneven development in various dimensions has become a key bottleneck that restricts the improvement of ecological resilience in cities in the cold and arid regions of northwest China. （2） The current ecological resilience of cities in the cold and arid regions of northwest China is showing an uneven evolution trend with increasing polarization， and the differences in resilience between different sunshine hours continue to expand. Among them， the internal imbalance problem in cities in areas with strong sunshine is particularly prominent. （3） Ecological resilience does not rely on the linear superposition of a single factor， but there are four configuration paths： fiscal easing leading model， technological innovation empowerment model， social demand-driven model and coupling improvement model.

Key words: cities in the cold and arid regions of northwest China, ecological resilience, spatiotemporal evolution, kernel density estimation, fuzzy set qualitative comparative analysis