小陇山生态站森林生态系统服务功能及其价值评估

根据森林生态系统结构与功能特征,探讨森林资源二类调查资料与定位观测资料相结合的森林生态系统服务功能评价方法。以小陇山生态站5种典型林分类型为研究对象,对小陇山生态站森林生态系统服务功能进行评估与分析。研究结果表明:1)森林生态系统服务功能总价值为9 564.53万元/a,单位面积价值量为4.61万元/(hm2.a);2)6项森林生态系统服务功能价值量大小顺序为:生物多样性保护>固碳制氧>涵养水源>净化大气>保育土壤>林木营养积累,变化在4 150.40～12.72万元之间。生物多样性保护、固碳制氧、涵养水源这3项的价值量占总价值量的92.9%;3)不同林分森林生态系统服务功能价值量表现为:阔叶混交林>落叶松>栎类>油松>针叶混交林。阔叶混交林和落叶松林在单位面积服务功能价值量依然排在前2位。

Assessment on Value of Forest Ecosystem Services in Xiaolongshan Ecological Research Station

According to the characteristics of structures and functions of ecosystem,evaluating methods of the ecosystem services based on the combination of the class Ⅱ investigation to forest resource and long-term fixed observation data were discussed.Five typical forest stands in Xiaolongshan Ecological Research Station were studied.Economic values of forest ecosystem services were assessed and analyzed.The results were as follow: 1) The total value of forest ecosystem services was 9 564.53×104yuan·a-1,and about 4.61×104yuan·hm-1·a-1;2)The value of the six service functions of forest ecosystem was in an order of biodiversity protection>carbon fixation and oxygen generation>water conservation>air purification>soil conservation>forest nutrition storage varied from 4 150.40×104yuan·a-1 to 12.72×104yuan·a-1.The value of biodiversity protection,carbon fixation and oxygen generation and water conservation was 92.9% of the total.3) The order of forest type was broadleaved forest>Larix spp.>Quercus>P.tabuliformis>coniferous forest.The per unit area value of broadleaved forest and Larix spp.was in the top two.