Spatio-temporal evolution and driving factors of land urbanization in the Yangtze River economic belt (Jiangsu section) using geographical detector

doi:10.13474/j.cnki.11-2246.2024.0423

Abstract

Abstract: 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.

Key words: Yangtze River economic belt, urbanization, geographical detector, space-time evolution, driving factor

CLC Number:

LI Yin, ZHAN Yating, ZHAO Lihong, ZHAO Like, CUI Yanmei. Spatio-temporal evolution and driving factors of land urbanization in the Yangtze River economic belt (Jiangsu section) using geographical detector[J]. Bulletin of Surveying and Mapping, 2024, 0(4): 135-139.

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