The optimization of territorial spatial resources allocation based on the balance of supply and demand of ecosystem services
Under the background of vigorously promoting the territorial spatial planning in the New Era,the efficient,sustainable and fair allocation of territorial spatial resources have become the basic research topic that must be carried out.Taking Guangxi,which is located in the core area of ecological barrier in Southern China,as the study subject,this study used the quantitative supply and demand matching process under the accounting of ecosystem service value and the analytical method of PLE-ES supply and demand quadrant matrix.The objective was to analyze the quantitative relationship and spatial matching characteristics of supply and demand for ecosystem services under the process of territorial spatial resource allocation.This study aimed to construct an optimization method for territorial spatial resource allocation cen-tered on the balance of supply and demand for ecosystem services.The results showed that:(1)In 2000,2010 and 2020,the mean difference between supply and demand of Guangxi's territorial spatial resources support services(Q)was 0.30,the mean difference between sup-ply and demand of regulating services(Q)was 0.33,the mean difference between supply and demand of supply services(Q)was 0.06,and the mean difference between supply and demand of cultural services(Q)was 0.03.The overall performance was that the demand of support services and cultural services exceeded supply,and the supply of regulating services and supply services exceeded demand.In terms of allocation quality,except for the regulat-ing services coordination degree(C),which was 0.16,the other three types of services coor-dination degree(C)were greater than 0.60,indicating fair and efficient allocation.(2)The supply and demand matching relationship of productive resources in the study area were mainly in the"high-supply low-demand"area,the living resources were mainly in the"low-supply low-demand"area,and the ecological resources were mainly in the"low-supply low-demand"and"high-supply low-demand"areas.(3)Taking the supply and demand balance of ecosystem services as the value orientation,Guangxi was divided into three primary units for resources allocation optimization,namely the resources-rich area in Western Guangxi,the integrated development area in Eastern Guangxi,and the Beibu Gulf Economic area.Identi-fied the supply source and demand destination of territorial spatial resources,and then con-structed a"one map"of territorial spatial resources circulation that can promote regional col-laboration and rational resources utilization.
territorial spatial resourcesallocationsupply and demand balanceecosystem ser-vices(ES)
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NSTL
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