What is the relationship between ecosystem services and urbanization? A case study of the mountainous areas in Southwest China

作     者：PENG Li WANG Xu-xi 

作者机构：Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China College of Land and ResourceChina West Normal UniversityNanchong 637009China Institute of Jialing River BasinChina West Normal UniversityNanchong 637009China 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2019年第16卷第12期

页      面：2867-2881页

核心收录：

学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 

基　　金：supported by the 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS (NO.SDS-135-1703) the Science and Technology Service Network Initiative (No. KFJ-STS-QYZD-060) Doctor Startup Foundation of China West Normal University (N0. 412650) the Sichuan Center for Rural Development Research Project (No. CR1811) Scientific Research Innovation Team Projects of China West Normal University (N0. CXTD2018-10) 

主　　题：Ecosystem services Urbanization Spatial clustering pattern Trade-offs/synergies Southwestern China 

摘      要：China is undergoing a rapid urbanization process,and urbanization will have a direct impact on regional ecosystems and affect regional ecosystem *** the mountainous counties in Southwestern China as the research object,this study reveals the spatial clustering characteristics of four typical ecosystem services(food production,soil conservation,water yield and carbon sequestration)as well as the trade-offs and synergies among ecosystem services in different urbanized *** the same time,piecewise linear regression is used to determine the threshold of the influence of urbanization on ecosystem *** results indicate that:1)There are spatial autocorrelations among the four typical ecosystem services;with strong clustering characteristics,the positive correlation types areclusteredlocally;and with significant spatial heterogeneity,the negative correlation types are scattered and mainly appear in the highly urbanized area.2)There are also remarkable differences in the relationship among various ecosystem services in different urbanized areas,and in particular,there are marked trade-offs between food production and carbon sequestration in the moderately urbanized area and the highly urbanized ***,there are synergies between them in the lowly urbanized area.3)With an increase in the compounded night light index(CNLI),water yield,carbon sequestration,food production and overall ecosystem services values present an increasing-decreasing trend,the soil conservation function value shows a decreasing-increasing *** response of water yield,carbon sequestration,food production,and overall ecosystem services to the compounded night light index(CNLI)has a threshold of 1.2642,1.4833,1.3388,1.5146 and 1.2237,*** on the detected relationships between urbanization and ecosystem services,this study provides a theoretical reference for the selection of urbanization development models in key ecological functional areas.