Urban construction land expansion and population growth relative coordination degree evaluation method and system

Abstract

The invention provides a urban construction land expansion and population growth relative coordination degree evaluation method and system. The method comprises the following steps: acquiring basic data, preprocessing the basic data, unifying a coordinate system through ArcGIS, and extracting the urban construction land; obtaining a standard per capita construction land value of the city; obtaining the absolute coordination degree through the ratio of the construction land to the population growth rate; calculating an ideal construction land growth rate, and quantitatively analyzing an ideal relationship between the construction land and population growth to obtain an ideal coordination degree; taking the distance between the absolute coordination degree and the ideal coordination degree as a relative coordination degree; grading the relative coordination degree numerical results by using a quantile grading method; and determining the coordination type according to the positive and negative values of the relative coordination degree, integrating the coordination degree and the coordination type result, and qualitatively determining the coordination relationship between the construction land and the population. According to the method, comprehensive consideration of the ideal coordination degree and the absolute coordination degree is added on the basis of the existing coordination degree, and more space-time evolution details are provided for evaluating whether the construction land and the population are coordinated or not.

Description

technical field [0001] The invention belongs to the technical field of evaluating and analyzing the coordination degree of land use and population, and in particular relates to a method and system for evaluating the relative coordination degree of urban construction land expansion and population growth. Background technique [0002] At present, China's urbanization is in a period of transformation and adjustment to high-quality development. Under the background of the country's advocacy of promoting economical and intensive land use and rationally guiding population distribution, it is necessary to explore the spatiotemporal changes in urban agglomeration construction land growth and population growth, and quantify urban agglomeration construction land. The coordinated relationship with the population and the promotion of the coordinated development of regional construction land investment have become an important issue at present. Construction land expansion and population ...

AI Technical Summary

Problems solved by technology

[0005] This ideal state only considers the absolute coordination relationship between the growth rates of the two in the process of urban development, and lacks consideration of whether the initial construction land and the total population match.

However, the initial state and process state of the two affect the coordination result together, and ignoring the initial state may cause the coordination result to be inconsistent with the actual situation

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