【作者】 郑羡； 梁宏温； 温远光； 杨瑶青； 杨健基； 马多；

【Author】 Zheng Xian1,Liang Hongwen1,Wen Yuanguang1,Yang Yaoqing2,Yang Jianji2,Ma Duo1 (1.Forestry College,Guangxi University Nanning 530005;2.Guangxi Jin Gui Forestry Limited Company,Nanning,530006)

【机构】 广西大学林学院； 广西金桂林业有限公司；

【摘要】 以广西钦州市钦南区10年生巨尾桉人工林为研究对象,采用相对生长法和收获法测定生物量,分别用组分和器官采集样品,用重铬酸钾-水合加热法测定碳含量,以探讨巨尾桉人工林生态系统不同组分、不同器官和不同层次的碳贮量及其分配规律。结果表明:巨尾桉人工林植被层各组分碳含量的变化范围在40.96%～48.41之间,在总体上表现为巨尾桉>林下木本植物>草本植物;10年生巨尾桉人工林生态系统总碳贮量123.110t·hm–2,其组成层次所占的比率分别为乔木层39.60%、林下植物层1.03%、落物层3.02%、土壤层56.35%。更多还原

【Abstract】 Ten years old in Eucalyptus grandis ×E.urophylla plantation were studied in qinzhou city,biomass was determined by relative growth method and harvest method,carbon content was determined by components,collection of organ samples and postassium dichromate-hydration heating method,then the carbon storage and distribution of various components,organs and layers were investigated.The results showed that:the carbon content of Eucalyptus plantation was changed at 40.96%～48.41%,and the manifestations were Eucalyptus grandis×E.urophylla >understory woody plant>herbaceous plant,the total carbon storage of ten years old in Eucalyptus grandis×E.urophylla plantation was 123.110t·hm–2,and which among the tree layer,undergrowth layer,litter layer and soil layer was 39.60%,1.03%,3.02% and 56.35%,respectively.更多还原