观光木人工林生态系统碳储量及其分布格局  

Carbon storage and its allocation in an artificial Tsoongiodendron odorum ecosystem in southern subtropical region of China

作　　者：黄松殿 吴庆标[2] 廖克波 莫德祥[2] 覃静[2] 

机构地区：[1]南宁良凤江国家森林公园,南宁530031 [2]广西大学林学院,南宁530005

出　　处：《生态学杂志》2011年第11期2400-2404,共5页Chinese Journal of Ecology

基　　金：桂林科字[2009]第22号;中国科学院战略性先导科技专项(XDA05050205)资助

摘　　要：在生物量调查的基础上,对南亚热带27年生观光木(Tsoongiodendron odorum)人工林生态系统的碳储量及分配格局进行了研究。结果表明:观光木人工林生态系统植被层生物量为101.26t·hm-2,乔木层生物量占86.90%;观光木的各器官碳素含量在426.5～496.9g·kg-1,大小排序为:树干>枝条>枯枝>根兜>粗根>树叶>中根>树皮>细根。观光木人工林生态系统总碳储量为180.49t·hm-2,其中0～80cm土壤层碳储量是植被层的2.67倍;乔木层年净固碳量为3.07t·hm-2·a-1,并主要以地上部分为主。Based on the biomass investigation, this paper evaluated the carbon storage and its allocation in a 27-year-old Tsoongiodendron odorum plantation ecosystem in southern subtropical region of China. In the ecosystem, the total biomass of vegetation layer was 101.26 t . hm-2, and the biomass of tree layer occupied 86.90%. The carbon storage in various organs of the trees ranged from 426.5 to 496.9 g . kg-1, with the order of trunk 〉 branch 〉 dead branch 〉 root tip 〉 coarse root 〉 leaf 〉 middle root 〉 bark 〉 fine root. The total carbon storage of the ecosystem was 180.49 t . hm-2, and the carbon storage in 0-80 cm soil layer was 2.67 times of that in vegetation layer. The annual net carbon sequestration of the tree layer was 3.07 t . hm-2 . a-1 , mostly in aboveground part.

关 键 词：观光木 生物量 碳储量 碳素分配 

分 类 号：S718.5[农业科学—林学]