Ecosystem Service Value Accounting and Ecological Management Zoning in the Yellow River Basin
In order to provide a reference for the implementation of fine ecological environment management and differentiated management and control of ecological governance in the Yellow River Basin,the value of 11 ecosystem services(ESVs)in 4 categories in the Yellow Riv-er Basin from 1995 to 2020 was calculated by using the"equivalent factor method of value per unit area",the trade-offs and synergies be-tween various ecosystem services in the Yellow River Basin in six periods were measured by Pearson correlation analysis,and the spatial au-tocorrelation was used to delineate the ecological management zones of the Yellow River Basin in 2020.The results show that:during the study period,the ESV in the Yellow River Basin show an increasing trend.However,in terms of land types,the proportion of ESV in farm-land,wetlands,and deserts decrease,while the trend of ESV changes in forests,grasslands,and water bodies is opposite.The proportion of supply services,support services and cultural services all show a downward trend,while regulatory services and support services constitute the main body of regional ecosystem service value.Spatially,the unit ecosystem service value is concave in the east-west direction and convex in the north-south direction.Correlation analysis shows that there is a significant positive correlation between the various ecosystem services in the Yellow River Basin,and the strong synergistic relationship accounted for 47.27%,indicating that there is a synergistic relationship be-tween ecosystem services in the Yellow River Basin during the study period.The 410 research units of the Yellow River Basin in 2020 are di-vided into 4 first level divisions and 13 second level divisions,and the corresponding ecological management measures are proposed.
ecosystem service valuetrade-offsynergiesspatial autocorrelationecological management zoningYellow River Basin
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