摘要
Abstract
It is of great value to analyze the eco-environmental problems of the provinces in the Yellow River Basin,and to discuss the spatiotemporal evolution characteristics of the ecosystem service value and its coordinated development with energy,economy and environment,so as to promote the high-quality coordinated development of the Yellow River Basin.A 4E system evaluation index system was constructed.Based on the land use data and energy,economy and environment related statistical data of nine provinces in the Yellow River Basin in 2000,2010 and 2020,the spatiotemporal characteristics of ecosystem service value in the Yellow River Basin and their coupling and coordinated development level with energy,economy,and environment binary and quaternary systems were analyzed,respectively.The results showed that:From 2000 to 2020,the area of cultivated land and unused land in the Yellow River Basin decreased continuously,the area of forest land,water area and construction land increased continuously,and the area of grassland decreased first and then increased.From the perspective of time,the ecosystem service value of the nine provinces increased from 1,838,552 billion yuan in 2000 to 8,024.206 billion yuan in 2020.From the perspective of spatial dimension,the ecosystem service value of the upper reaches of the Yellow River Basin is higher.During the study period,the comprehensive development index of the complex system composed of ecological,energy,economic and environmental systems in the provinces of the Yellow River Basin,as well as the coupling coordination level of the binary system and the quaternary system all showed a slow rising trend.However,the range of coupling coordination degree of quaternary system in Gansu and Ningxia is low,especially in Ningxia Hui Autonomous Region,where the coupling coordination level of eco-energy-environment-economy system is still in a mild imbalance state.Therefore,it is proposed to improve the regional docking mechanism and optimize the layout of territorial space;Optimize the industrial structure,foster and strengthen emerging industries;Strict control of industrial waste discharge,promote industrial green transformation and other development proposals.关键词
生态系统服务价值/土地利用变化/耦合协调/黄河流域Key words
ecosystem service value/land use change/coupling coordination/the Yellow River Basin分类
资源环境
