Quantitative assessment of the supply,demand and flows of ecosystem services in the Yangtze River Basin,China
作者机构：School of Smart City InstituteChongqing Jiaotong UniversityChongqing 400074China
出 版 物：《Frontiers of Earth Science》 (地球科学前沿（英文版）)
年 卷 期：2024年第18卷第2期
页 面：422-445页
核心收录：
学科分类：08[工学] 0708[理学-地球物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）]
基 金：supported by the National Natural Science Foundation of China(Grant Nos.42171298 and 42201333) Late Project of the National Social Science Foundation in China(No.20FJYB035) Natural Science Foundation of Chongqing,China(No.cstc2020jcyj-jqX0004)
主 题：Yangtze River Basin ecosystem services supply and demand service flow quantitative assessment spatial matching
摘 要：Ecosystem service flow is essential for transporting,transforming,and maintaining ecosystem services and connecting supply and *** study attempted to quantitatively assess the supply and demand flows of ecosystem services in the Yangtze River Basin in 2000,2010,and 2020;assess the evolution of the spatial patterns of ecosystem service flow at the provincial,watershed and urban agglomeration scales;and design a zoning standard for ecosystem service *** results showed as follows.1)Between 2000 and 2020,the Yangtze River had a progressive drop in its freshwater supply,water conservation service and carbon sequestration service *** decline rates for these services were measured at 10.90%,11.11%,and 5.17%,*** climate regulation service flow exhibited a pattern of initial fall followed by a subsequent increase,characterized by a decline rate of 35.53%.2)The lowest was the ecosystem service flow in the lower reaches of the Yangtze River and the Yangtze River Delta urban *** supply service flow and water conservation service flow were the highest in the upper reaches of the Yangtze River and the Chengdu-Chongqing urban *** sequestration service flow and climate regulation service flow were the highest in the middle reaches of the Yangtze River Basin and the urban agglomeration in the middle reaches of the Yangtze River.3)From 2000 to 2020,the change ratios of the area proportion of the confluence,flow,and outflow areas in the Yangtze River Basin were 1.06,3.17,and 0.86,*** results of this research could offer decision support for regulating ecosystem services in the Yangtze River Basin,promoting sustainable regional development and achieving rational use of the basin resources.
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