RESEARCH ON ECOLOGICAL PLANNING METHODOF URBAN CONSTRUCTION LAND BASED ON COMPREHENSIVE BENEFITS

摘要

When carrying out ecological planning for urban construction land in accordance with current methods,comprehensive benefits such as social, ecological,and environmental benefits are not considered.There are problems in comprehensive benefits,poor ecological protection efficiency,and low planning rationality.This study proposes a comprehensive benefit-based ecological planning method for urban construction land.According to the principle of ecological priority and on the basis of McHague's evaluation theory,we establish a comprehensive ecological benefit evaluation index system for urban construction land.We use network analysis method to calculate the weight of comprehensive benefit indicators.We calculate the results, construct a comprehensive benefit evaluation model for urban construction land,obtain the comprehensive benefit value of urban construction land,construct a cellular automata model,introduce random variables,calculate neighborhood action values,determine weight parameters corresponding to spatial variables,and combine system dynamics to establish an ecological planning model for urban construction land and realize the planning of urban construction land.The experimental results show that the proposed method has good comprehensive benefits and ecological protection efficiency,and can effectively improve the rationality of urban construction land ecological planning.