擎天树人工林生态系统碳贮量及分布格局  

Storage and Distrobution Pattern of Carbon in the Ecological System of Man-made Forest of Parashorea chinensis

作　　者：苏勇 吴庆标[2] 施福军 梁机[2] 段文雯[2] 

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

出　　处：《安徽农业科学》2011年第9期5271-5273,共3页Journal of Anhui Agricultural Sciences

基　　金：广西"十一五"林业科技研究项目(桂林科字2010-19)

摘　　要：对32年生擎天树人工林生态系统的碳素含量、碳贮量及其空间分配特征进行了研究。结果表明,擎天树不同器官碳素平均含量的变化范围为465.1～493.5 g/kg,各器官碳素含量依次为:细根>树干>树叶>根兜>中根>粗根>树枝>干皮;32年生擎天树人工林生态系统的碳贮量为300.70 t/hm2,其中植被层碳储量为169.71 t/hm2,乔木层地上部分碳储量占整个植被层的84.22%。经估算,擎天树人工林乔木层净固碳量和碳素净积累量分别为11.30和5.20 t/(hm2.a)。The content,storage and spatial distribution of carbon in the ecological system of man-made forest of 32-years old Parashorea chinensis were studied.The results showed that the average carbon contents in different organs of Parashorea chinensis varied in the range of 465.1-493.5 g/kg;the carbon contents in its organs were as follows： thin root tree trunk leaves root pocket middle root thick root branches trunk bark;the carbon storage of the ecological system of man-made forest of 32-years old Parashorea chinensis was 300.70 t/hm2,that of vegetable layer was 169.71 t/hm2 and that of aerial part of tree layer accounted for 84.22% in the carbon storage of whole vegetable layer.It was estimated that the net carbon capacity and carbon accumulation of tree layer in the man-made forest of P.chinensis were 11.30 and 5.20 t/（hm2·a）.

关 键 词：擎天树 生物量 碳贮量 碳素分配 

分 类 号：X174[环境科学与工程—环境科学]