珊溪水库生态系统服务物质量和价值量评估

The ecosystem services quality and value evaluation of Shanxi Reservoir

生态系统服务具有区域性特征。水库生态系统服务功能由陆域、水域生态系统服务功能构成。开展水库特别是水库所在流域的自然资源实物量核算与生态系统服务价值量评估,对于有效开展生态系统服务评估具有重要意义。根据珊溪水库所在流域生态系统特点及生态系统服务特征,构建水生态物质量和价值量评估指标体系,借助静态的流域生态产品价值核算方法对统计及调研数据进行分析,按照功能类别开展珊溪水库生态系统服务评估。以流域水生态服务价值种类及计算方法为依据,结合流域景观特性,开展珊溪水库水生态服务价值测算,分类给出测算结果。珊溪水库水生态服务价值为117.75亿元/a,其中,产品生产、调节功能、文化功能、支持功能价值分别为23.84亿元/a、89.28亿元/a、1.62亿元/a、3.00亿元/a。测算方法为进行流域生态系统服务价值测算提供参考,有助于完善生态产品服务价值测算体系。

Ecosystem services have regional characteristics.Reservoir ecosystem service functions are composed of land area and water ecosystem service functions.Carrying out the physical quantity accounting of natural resources and the evaluation of ecosystem service value of reservoirs,especially in the watershed where the reservoir is located,which is of great significance for the effective development of ecosystem service evaluation.Based on the ecological system characteristics and ecosystem service characteristics of the watershed where Shanxi Reservoir is located,a water ecological product quality and value evaluation index system was constructed.We analyzed the statistics and survey data with the help of static watershed ecological product value accounting methods,to calculate the ecosystem service value of Shanxi Reservoir.Based on the types and calculation methods of watershed ecological service value,combining with the characteristics of the watershed landscape,the method for measuring the water ecological service value of Shanxi Reservoir was given.By the comprehensive calculations,the watershed ecological service value of Shanxi Reservoir is 11.775 billion Yuan Per year,of which the value of product production,regulation function,cultural function,and support function were 23.84 million Yuan Per year,89.28 million Yuan Per year,1.62 million Yuan Per year,3.00 million Yuan Per year,respectively.The calculation method provided a reference for the evaluation of the ecosystem service value of the watershed and was helpful to the improvement of the ecological product and service value calculation system.