Study on Spatiotemporal Changes of Ecosystem Services and Trade-off/Synergy Relationships in the Yangtze River Economic Belt
The Yangtze River Economic Belt is the leading demonstration belt for ecological civilization building.It is of great significance for the sustainable development of regional ecological environment to explore the temporal and spatial changes of ecosystem services and the trade-off/synergy relationships.Based on methods such as land use transfer matrix,modified equivalent factor method,sensitivity index,spa-tial autocorrelation and Pearson correlation coefficient,this paper quantitatively analyzed the land use situation and its spatial-temporal re-sponse to ecosystem services in the Yangtze River Economic Belt from 2000 to 2020,and explored the trade-off/synergistic relationship be-tween various ecosystem services.The results show that during the study period,the land use types in the Yangtze River Economic Belt are mainly forest land,cultivated land and grassland,and the largest area transferred out and transferred into area are cultivated land and forest land respectively.The ecosystem service value of the Yangtze River Economic Belt increases from 7 019.501 billion Yuan in 2000 to 7 042.623 billion Yuan in 2020,with a growth rate of 0.33%.Ecosystem services are mainly hydrological regulation,climate regulation,soil conservation and gas regulation services.The spatial distribution pattern of ecosystem service value in the Yangtze River Economic Belt is as follows:upstream＞middle reaches＞downstream.The agglomeration effect of the spatial distribution of ecosystem service value in the study area is significant,with high-high agglomeration areas concentrated in upstream areas,low-low agglomeration areas concentrated in down-stream Jiangsu Province and Anhui Province,and low-high agglomeration areas concentrated in Panzhihua City,Sichuan Province.The syn-ergy relationship is the dominant relationship of ecosystem services in the Yangtze River Economic Belt,with a synergy rate of 63.64%.
land useecosystem service valuetrade-off/synergy relationshipYangtze River Economic Belt
国家科技期刊平台
NSTL
万方数据
