水环境治理项目生态价值评估体系构建与实证分析

Construction and empirical analysis of ecological value assessment system for water environment management projects

生态价值评估对生态文明建设具有重要意义。为完善水环境治理项目的生态价值评估,将水环境治理项目分为河湖、绿地两大生态系统,从土壤保护、水源养护、固碳释氧、净化气体环境、物种保育5个角度出发,建立了水环境治理项目生态价值评估体系,并用其评估了河南省平舆县水环境治理项目的生态价值。结果表明:2020年,平舆县水环境治理项目总生态价值为1.01亿元。定量评估生态价值可为项目经济评价提供依据,为以后水环境治理项目生态价值评估提供参考。

Ecological value assessment is of great significance to the construction of ecological civilization.To improve the ecological value assessment of water environment management project,we divide water environment treatment projects into two ecosystems,namely river and lake program and green space program,and establish an ecological value assessment system for water environment treatment projects from five perspectives:soil protection,water conservation,carbon sequestration and oxygen release,air purification,and species conservation.Then we use the system to assess the ecological value of the water environment management project in Pingyu County,Henan Province.The results showed that the total ecological value of the water environment treatment project in Pingyu County in 2020 was 101 million CNY.The quantitative assessment of the ecological value can provide a basis for the economic evaluation of the project and provide a reference for the ecological value assessment of water environment management projects in the future.