小陇山森林生态系统服务功能价值评估

基于二类森林资源调查数据,评价小陇山林区27种不同林分生态系统服务功能的价值量。结果表明:1)小陇山林区森林生态系统服务功能总价值为301.25亿元·a^-1,其中涵养水源、生物多样性保护、固碳释氧、保育土壤、净化大气、积累营养物质、森林防护、森林游憩的价值分别为102.48、62.74、54.86、35.76、24.28、11.71、9.21亿元·a^-1与1 960万元·a^-1。2)27种林分中阔叶混、灌木林及栎类价值量位于前3位,分别为145.36、44.98亿元·a^-1和28.04亿元·a^-1; 水曲柳和胡桃楸价值量最小,分别为31.42万元·a^-1与17.16万元·a^-1。

Assessment on Forest Ecosystem Services Value of Xiaolongshan Region

This paper evaluated the main services of forest ecosystem of Xiaolongshan region based on the second forest resources inventory data. 1)The total value of forest ecosystem services was 30.125 billon yuan·a^-1, in which service values of water storage, biodiversity conservation, C fixation and O₂ release, soil conservation, environment purification, nutrients accumulation, forest shelterbelt and forest recreation were 10.248, 6.274, 5.486, 3.576, 2.428, 1.171, 0.921 billon yuan·a^-1 and 19.60 million yuan·a^-1, respectively. 2)The values of shrub forest, broadleaf mixed forest and Quercus were in the top three of 27 tree species with the values of 14.536, 4.498, and 2.804 billion yuan·a^-1, respectively. The values of Fraxinus mandshurica and Juglans mandshurica were the least with the values of 0.314 2 and 0.171 6 million yuan·a^-1, respectively.