云南省针叶林碳储量及固碳潜力分析

Carbon Storage and Sequestration Potential of Coniferous Forest in Yunnan Province

以森林资源规划设计调查数据为基础,采用IPCC提供的方法对云南省针叶林的碳储量进行估算,并以成熟林或过熟林的平均碳密度为基准水平对固碳潜力进行分析.结果表明:云南省针叶林碳储量389.247Tg,以中龄林的碳储量为主,以天然林的碳储量为主,优势树种云南松、 思茅松、 冷杉、 华山松、 高山松和铁杉的碳储量之和占针叶林碳储量的91.02%.云南省针叶林平均碳密度38.9t/hm2,人工林平均碳密度仅为天然林平均碳密度的68.71%.全省针叶林固碳潜力为287.631Tg,相当于现有针叶林碳储量的73.89%,有很大的固碳潜力.

Based on the forest resource planning and design survey data,the Intergovernmental Panel on Climate Change(IPCC)recommended method was used to estimate the carbon storage of coniferous forest in Yunnan province,and then taking the average carbon density of mature or over-ripe forest as reference level to analyze the carbon sequestration potential.The results showed that the carbon storage of coniferous forest in Yunnan province was 389.24Tg,which was dominated by the middle-aged forest and natural forest.The dominant tree species are Pinus yunnanensis,Pinus kesiya var.langbianensis,Abies fabri,Pinus armandii,Pinus densata and Tsuga chinensis,and the sum of their carbon storage accounted for 91.02%of the coniferous forest.The average carbon density of coniferous forest in Yunnan province is 38.9t/hm2,and the average carbon density of plantation is only 68.71%of the natural forest.The carbon sequestration potential of coniferous forest in the province is 287.631Tg,which is equivalent to 73.89%of the existing coniferous forest carbon storage,which means there is a large carbon sequestration potential.