Spatial and temporal variability of supply and demand for ecosystem services and spatial interaction with human activities in the Yellow River basin
[Objective]With the increasing human interference on the ecosystem,revealing the changing characteristics of ecosys-tem service supply-demand and the interactions with human activities in the Yellow River basin to provide theoretical basis for the formulation of ecological protection and sustainable development strategies.[Methods]The equivalence factor method was used to account for ecosystem service supply from 1980 to 2020,and ecosystem service demand was calculated based on the degree of land use development,population density and economic density.Then,based on the quantitative result of supply-demand analy-sis and human activity intensity,the interaction between them was revealed by bivariate spatial autocorrelation analysis.[Results]The result showed that from 1980 to 2020,the ecosystem service supply in the Yellow River basin showed a trend of first decreasing and then increasing,with an overall decrease of 14.43×108 yuan.The ecosystem service demand increased,especially after 2000,and showed a spatial pattern of increasing from west to east in 2020.The prefecture-level cities with low-supply and high-demand in the Yellow River basin were mainly located in the eastern part of the study area,while the prefecture-level cities with low-supply and low-demand were mainly located in the central part,and surrounded by the prefecture-level cities with high-supply and low-demand.The human activity intensity was higher in the eastern region and lower in the western region,and was increasing over time.There was a significant negative spatial correlation between ecosystem service supply-demand and the human activity intensity in the Yellow River basin,and three clustering patterns of High-Low,Low-High and Low-Low cluste-ring were observed at the local scale.[Conclusion]The result visualize the spatial trade-offs between ecosystem services and hu-man activities in the Yellow River basin,which can provide scientific guidance for coordinating ecological protection and human activities in policy making.
ecosystem servicessupply and demandhuman activity intensityspatial interactionsYellow River basin
万方数据
维普
