黄河流域城市生态韧性时空分异及收敛研究OACSTPCD

The scientific measurement of the development status and convergence trend of urban ecological resil-ience in the Yellow River Basin urban agglomeration is of great significance for the ecological protection and high-quality development of Yellow River Basin.This study selects the panel data of 61 prefecture-level cities in the seven major urban agglomerations in the Yellow River Basin from 2011 to 2020,takes evolutionary resilience as the research perspective,constructs an urban ecological resilience evaluation index system from the dimen-sions of resistance-response-innovation,examines the spatial differentiation of urban ecological resilience using kernel density estimation and the natural break method,and analyzes the urban ecological resilience using differ-ent types of convergence models.This study shows the following:(1)The overall mean value of urban ecological resilience in the Yellow River Basin is 0.093,and the trend is slow.(2)The urban ecological resilience exhibits a spatial pattern of"strong downstream city clusters and weak upstream and midstream city clusters",and a de-creasing spatial distribution of"core and provincial capital cities-peripheral and marginal cities"within the city clusters.(3)Absolute β convergence exists in the Yellow River Basin and city clusters,among which the Jinzhong City cluster converges the fastest.After adding control variables,the Yellow River Basin and city clusters exhibit a significant conditional β convergence trend,and the speed of convergence increases.In addition,the effects of economic development level,population density,and other variables on the convergence of urban ecological resil-ience are significantly heterogeneous.