Quantitative analysis of the driving force of spatio-temporal evolution of land urbanization can provide scientific basis for sustainable urban development.This paper combines earth observation data with population and economic data,takes 8 cities along the Yangtze River economic belt(Jiangsu section)as examples,and based on 5 Landsat images from 2000 to 2020,night light images,total population and GDP.GeDetector is used to discuss the evolution of spatial,population and economic dimensions and the process of multi-scale differentiation in the past 20 years,and analyze the spatial-temporal evolution law and driving factors of land urbanization.The results show that:①The urbanization process directly drives the change of land surface type,and the population and GDP can be used as quantitative indicators of the urbanization process intensity.②NTL data coupled with population or economic statistics can better explain the spatio-temporal differences in the process of regional urbanization.③The urbanization process of 8 cities along the Yangtze River economic belt(Jiangsu section)has experienced a change from quantity to quality.The research results provide scientific basis for guiding the rational allocation of urban construction land,and provide decision-making reference for urban sustainable development.
关键词
长江经济带/城镇化/地理探测器/时空演变/驱动因子
Key words
Yangtze River economic belt/urbanization/geographical detector/space-time evolution/driving factor
维普
万方数据