【摘要】 依据《森林生态系统服务功能评估规范》理论和方法，将广西苍梧县森林资源优势树种划分为松树、杉木、桉树、大叶栎等4个生态服务功能评估单元，并结合2019年广西苍梧县森林资源监测数据，分别进行涵养水源、保育土壤、固碳释氧、林木营养积累、净化大气、生物多样性保护和森林游憩等价值评估。结果表明，苍梧县森林资源年生态环境总价值约为122.77亿元·a^-1,单位面积森林生态价值均约为7.54万元·km^-2·a^-1。森林游憩价值挖潜空间巨大，作为乡土树种的松树和大叶栎因种植面积相对较大而获得价值总量上的绝对优势；而单位面积的生态环境价值构成中，作为外来树种的桉树在涵养水源、固碳释氧及林木养分积累方面优势明显，而乡土树种松树、大叶栎和杉木较桉树在生物多样性保护方面优势明显。更多还原

【Abstract】 Strengthening forest resource assessment is of great significance for promoting the construction of regional ecological civilization. Based on the theory and method of Forest Ecosystem Service Assessment Standard, the dominant tree species in Cangwu County, Guangxi was divided into four ecological service assessment units: pine, Cunninghamia lanceolata, eucalyptus, and quercus macrophylla, which were evaluated to water conservation, soil conservation, carbon fixation and oxygen release, forest nutrient accumulation, air purification, biodiversity protection and forest recreation with monitoring data from the forest resource in Cangwu County in 2019. The results showed that the annual eco-environment value of forest resources in Cangwu County was about 12.277 billion yuan·a^-1,and the ecological value of forest resources per unit area was about 75,400 yuan ·km^-2·a^-1,among which the seven ecological and environmental values（100 million yuan）of forest resources were: Water conservation value > carbon sequetioning and oxygen releasing value > biodiversity value > forest nutrition accumulation value > soil conservation value > atmospheric environment purification value > forest recreation value, forest recreation value has a huge potential. Pine and Quercus macrophallus, as native tree species, gain absolute superiority in total value because of the relatively large planting area. In terms of ecological environment value per unit area, eucalyptus, as an alien species, has obvious advantages in water conservation, carbon fixation and oxygen release and forest nutrient accumulation, while pine, oak and Chinese fir, as native species, have obvious advantages in biodiversity conservation. The results of accounting evaluation can optimize the forest resource structure of Cangwu County and boost the regional ecological civilization construction to achieve sustainable development.更多还原