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根据国家林业局发布的《森林生态系统服务功能评估规范》(LY/T 1721—2008),从涵养水源、保育土壤、固碳释氧和积累营养物质功能4个方面进行评价,研究小水电代燃料工程的实施对贵州省麻江县项目区森林生态服务功能的物质量及其价值的影响.结果表明:小水电代燃料工程对森林生态系统服务功能物质量的增加有显著作用.马尾松和柏木人工林在项目区内涵养水源功能的物质量达20662.04 m~3·hm~(-2)·a~(-1),比项目区外增加20.5%,保育土壤量为119.1 t·hm~(-2)·a~(-1),比项目区外增加29.7%,固碳释氧量为220.49 t·hm~(-2)·a~(-1),比项目区外增加40.2%,林木营养积累量达3.49 t·hm~(-2)·a~(-1),比项目区外增加48.5%.小水电代燃料工程对项目区森林生态系统服务功能价值增加额度表现为:固碳释氧功能(7.14万元·hm~(-2)·a~(-1))>涵养水源功能(6.01万元·hm~(-2)·a~(-1))>林木营养积累功能(1.38万元·hm~(-2)·a~(-1))>保育土壤功能(0.81万元·hm~(-2)·a~(-1)).小水电代燃料工程对提高森林生态服务功能价值和实现林区的可持续发展具有重要作用.
According to the “Forest Ecosystem Services Evaluation Norms” (LY / T 1721-2008) issued by the State Forestry Administration, four aspects of water conservation, soil conservation, carbon fixation and oxygen release, and accumulation of nutrients are evaluated. Effects of Fuel Engineering on the Quantity and Value of Forest Ecosystem Services in the Project Area of Majiang County, Guizhou Province. The results show that the project of replacing fuel with small hydropower has a significant effect on the increase of forest ecosystem services, The plantation of water conservation function of Cedarwood plantation in the project area reached 20662.04 m ~ 3 · hm -2 · a -1, increased by 20.5% than that of the project area and the soil conservation was 119.1 t · hm ~ (-2) · a -1, 29.7% more than that of the project area and 220.49 t · hm -2 · a -1 of carbon sequestration, which increased by 40.2% , And the nutrient accumulation of forest was 3.49 t · hm -2 · a -1, increased by 48.5% than that of the project area.The increase amount of the value of forest ecosystem services functioned by the SHP project in the project area is: Carbon sequestration and oxygen releasing function> Water conservation function (60,100 yuan · hm -2 · a -1)> Forest nutrition Accumulate function (13,800 yuan · hm ~ (-2) · a -1)> conservation of soil function (8100 yuan · hm -2 · a -1). The project of substituting fuel with small hydropower for improving the value of forest ecosystem services and To achieve the sustainable development of forest area has an important role.