Spatio-temporal evolution and adaptation relationship between urban scale and urban livability in the Yangtze River Economic Belt
The scientific diagnosis of the multi-dimensional adaptation relationship between urban scale and urban livability is of great significance for promoting regional high-quality development and optimizing the urban living environment.Based on the panel data sets encompassing 108 cities above the prefecture level in the Yangtze River Economic Belt(YREB)spanning from 2010 to 2020,this paper delves into the mechanism and the process underpinning the adaptation relationship between urban scale and urban livability,constructs a comprehensive evaluation index system for both systems,utilizes the methods such as kernel density estimation and spatial variability function to characterize the spatial and temporal evolution of these systems,and analyses the multi-dimensional adaptation relationship between urban scale and urban livability by using the spatial gravity model,and the integrated adaptation model.The results show that:(1)Throughout the study period,both the urban scale index and the urban livability index in the YREB exhibit a fluctuating upward trend,cities in the lower reaches of the Yangtze River consistently maintain a leading position in terms of expansion,and cities in the upper reaches are found to be more livable.(2)The spatial structure difference between urban scale and urban livability in the YREB has narrowed.The spatial self-organization of two systems is becoming more and more prominent,and there is a notable imbalanced structure within the cities.Cities such as Shanghai,Nanjing and Suzhou merge as the polarization centers of urban scale,and Chongqing and Chengdu have obvious advantages in terms of urban livability.(3)In the YREB,the distance between the center of gravity of urban scale and urban livability gradually decreased.This convergence is reflected in the decreasing absolute disparities among two systems,indicating a more balanced and sustainable development pattern in the region.The type of adaptation has gradually changed from extreme inadaptation and less adaptation at the beginning of the study to basic adaptation and moderate adaptation,and the lower reaches of the Yangtze River have achieved the transition from"less adaptation-basic adaptation-moderate adaptation",while the adaptation level of some cities in the upper reaches and the middle reaches of the Yangtze River has yet to be improved.
urban scaleurban livabilityadaptation relationshipspatial variability functionYangtze River Economic Belt
NETL
NSTL
万方数据
