Exploration on the Development Boundary Delimitation Method of Small and Medium-sized Cities under Multi-scenario Simulation

Abstract

Research purposes: In order to solve the problem that the development boundary of small and medium-sized cities is "inaccurate" and it is difficult to coordinate with the current land and space planning, the purpose is to form a set of universal development boundary demarcation process of small and medium-sized cities. Methods: Optimize the existing practice of demarcation research methods, fully connect with the pattern of land development and protection, combine the artificial neural network model (GEOSOS model) and use Model Builder to design a land use simulation model with "double evaluation" results and "reverse" protection red line module, and consider the policy-oriented influence, and comprehensively consider the above aspects to explore a method of boundary demarcation of urban development that is coordinated and unified with development and protection. Research: The simulated land use results of the model based on "positive development guidelines" and "reverse scale control" are in line with the law of urban spatial expansion of small and medium-sized cities represented by dangyang city. The research results can not only provide reference for the future urban development of dangyang city and the spatial planning of dangyang city, but also provide technical support for the demarcation of urban development boundaries in China.