黄河流域生态系统服务价值核算及生态管理分区.

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 River 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 autocorrelation 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. [ABSTRACT FROM AUTHOR]