浙江乌岩岭国家级自然保护区森林生态系统服务价值评估

  目的  乌岩岭国家级自然保护区能够提供多功能的生态服务，对保护和改善泰顺县和温州市的生态环境起着至关重要的作用。  方法  以乌岩岭国家级自然保护区为研究区，通过实地调查，参照LY/T 1721?2008《森林生态系统评估规范》的方法，定量评估了乌岩岭国家级自然保护区森林生态系统生态服务的物质量和价值量。  结果  2017年乌岩岭国家级自然保护区森林生态系统生态服务的总价值量为100.24×108元·a?1，单位面积森林生态服务价值为3.92×105元·hm?2·a?1。乌岩岭国家级自然保护区森林生态系统服务价值所占比例从大到小依次为保育土壤、涵养水源、积累营养物质、固碳释氧、生物多样性保护、净化大气环境。可见，保育土壤、涵养水源和积累营养物质是乌岩岭森林生态系统主要的服务，三者比例之和高达91.92%，占有重要地位。乌岩岭国家级自然保护区不同森林类型生态系统服务价值从大到小依次为常绿阔叶林、杉木Cunninghamia lanceolata林、竹林、马尾松Pinus massoniana林、针阔混交林、柳杉Cryptomeria fortunei林、经济林。常绿阔叶林对乌岩岭森林生态系统服务价值贡献在50%以上，占据绝对地位。  结论  乌岩岭国家级自然保护区常绿阔叶林的单位面积生态服务价值远远高于其他林分，因此通过把针叶林改造成阔叶林等林相改造技术，提高林分质量，优化生态系统结构，进而增加生态系统服务的产出和价值。表5参27

Evaluation of forest ecosystem service value in Wuyanling National Nature Reserve of Zhejiang Province

  Objective  The multi-functional ecological services provided by Wuyanling National Nature Reserve play a vital role in protecting and improving the ecological environment of Taishun and Wenzhou.  Method  Taking Wuyanling National Nature Reserve as the research area, the quality and value of the ecological services of the forest ecosystem in Wuyanling National Nature Reserve were quantitatively evaluated with reference to the Forest Ecosystem Assessment Standard (LY/T 1721?2008).  Result  The total value of forest ecosystem ecological services in Wuyanling National Nature Reserve in 2017 was 100.24 ×108 yuan·a?1, and the value of forest ecological service per unit area was 3.92×105 yuan·hm?2·a?1. The proportion of forest ecosystem service value from large to small in Wuyanling National Nature Reserve was soil conservation, water conservation, accumulation of nutrients, carbon fixation and oxygen release, biodiversity protection, and purification of the atmospheric environment. It could be seen that conservation soil, water conservation and accumulation of nutrients were the main services of Wuyanling forest ecosystem, and the sum of the three accounted for 91.92%, occupying a dominant position. The service value of different forest types in Wuyanling National Nature Reserve ranging from large to small was evergreen broad-leaved forest, Chinese fir forest, bamboo forest, Masson pine forest, coniferous and broad-leaved mixed forest, cedar forest, and economic forest. The evergreen broad-leaved forest contributed more than 50% to Wuyanling forest ecosystem service value, occupying an absolute position.  Conclusion  The ecological service value per unit area of evergreen broad-leaved forest in Wuyanling National Nature Reserve is much higher than that of other forest types. Therefore, through forest facies transformation technologies such as transforming coniferous forest into broad-leaved forest, the quality of forest stands can be improved, the structure of ecosystems can be optimized, and the output and value of ecosystem services can be increased. Ch, 5 tab. 27 ref.]