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      基于生态系统服务价值的湘江流域生态补偿标准研究

      Research on ecological compensation standards in Xiangjiang River Basin based on ecosystem service value

      • 摘要: 为科学量化湘江流域生态服务价值并优化区域生态补偿机制, 基于2013~2022年中国土地覆盖数据集(CLCD), 应用Arc-GIS软件, 结合当量因子法和主体功能法, 对湘江流域生态系统服务价值进行评估。通过水足迹法剔除区域内自身消费的生态系统服务价值后, 计算出各市生态补偿标准及补偿优先级。结果显示:修正后的湘江流域生态系统服务价值呈波动上升趋势, 增长约18.5%。生态补偿标准从2013年的378.23亿元升至2022年的681.90亿元, 期间波动显著, 2018年最低为156.42亿元, 而2019年升至最高为791.95亿元。各市生态补偿标准均呈增长趋势, 其中永州市和岳阳市增加显著;衡阳市、长沙市和株洲市增长稳步, 而湘潭市增长温和且占比较低。2022年生态补偿优先级由高到低排列依次为:永州市、岳阳市、株洲市、衡阳市、湘潭市、长沙市。该研究可为湘江流域生态保护政策和资源管理决策提供参考。

         

        Abstract: To scientifically quantify the Ecosystem Service Values (ESV) of Xiangjiang River Basin and optimize its regional ecological compensation mechanisms, based on the China Land Cover Dataset (CLCD) from 2013 to 2022, Arc-GIS software was used to evaluate the ecosystem service value of Xiangjiang River Basin by combining the equivalent factor method and the main function method, and the ecological compensation standard and compensation priority of each city were calculated after excluding the ecosystem service value consumed by the region through the water footprint method. The results showed that the ecological compensation standard rose from 37.823 billion yuan in 2013 to 68.190 billion yuan in 2022, with significant fluctuations during the period, and a minimum of 15.642 billion yuan in 2018 and a maximum of 79.195 billion yuan in 2019. The ecological compensation standards of all cities showed an increasing trend, and Yongzhou City and Yueyang City increased significantly. Hengyang City, Changsha City and Zhuzhou City grew steadily, while Xiangtan City grew moderately and accounted for a relatively low proportion. In 2022, the priority of ecological compensation in descending order is Yongzhou City, Yueyang City, Zhuzhou City, Hengyang City, Xiangtan City and Changsha City. The study can provide a reference for making ecological protection policies and resource management decisions in Xiangjiang River Basin.

         

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