五马河流域森林生态系统服务价值评估

Assessment on forest ecosystem service value in Wuma river basin

森林生态系统是最大的陆地生态系统,明确森林生态系统服务功能价值对其管理和发展有重要意义。运用影子工程法、市场价值法、费用分析法等价值评估方法,对2015年五马河流域森林生态系统涵养水源、保育土壤、固碳释氧、积累营养物质、净化大气环境和生物多样性保护6项服务进行价值评估。结果显示:2015年五马河流域森林生态系统服务总价值为1.32×109元/a,其中涵养水源价值最高,为5.54×108元/a,积累营养物质的价值最低,为2.06×107元/a。6项服务的价值排序:涵养水源价值>固碳释氧价值>生物多样性保护价值>净化大气环境价值>保育土壤价值>积累营养物质价值。建议加强对森林生态系统的管理与调控,促进五马河流域整体生态系统服务总价值的增加。

Forest ecosystem is the largest terrestrial ecosystem.It is of great significance to define the service value of forest ecosystem for its management and development.Using shadow projection approach,market value approach,cost analysis approach and other value assessment approaches,the forest ecosystem service value of water conservation,soil conservation,carbon sequestration and oxygen release,nutrient accumulation,air purification,and biodiversity conservation in Wuma river basin in 2015 were assessed.The results showed that the total value of the above six forest ecosystem services in Wuma river basin was 1.32×10 9 yuan/a,of which water conservation value was the highest (5.54×10 8 yuan/a),and nutrient accumulation value was the lowest (2.06×10 7 yuan/a).The six services values rank as follows: water conservation value,carbon sequestration and oxygen release value,biodiversity conservation value,air purification value,soil conservation value and nutrient accumulation value.It is suggested to strengthen the management and regulation of the forest ecosystem and promote the increase of the value of the overall ecosystem services in Wuma river basin.