Research on Comprehensive Measurement and Spatiotemporal Differentiation of Urban Shrinkage in Kaifeng City

In order to research the spatiotemporal evolution characteristics of urban shrinkage in Kaifeng city, a shrinkage degree model was established to quantitatively analyze the shrinkage degree of Kaifeng city in two periods from 2010 to 2015 and from 2015 to 2020 from three dimensions of population, economy and space, and a comprehensive evaluation index system of urban shrinkage in Kaifeng city was established by using the entropy method. A comprehensive measurement of urban shrinkage is carried out.