文献类型：期刊文献

中文题名：南亚热带不同树种人工林碳素密度

英文题名：Distribution patterns of carbon density in different tree species plantations in a subtropical area of China

作者：郑路[1,2] 蔡道雄[1,2] 卢立华[1,2] 明安刚[1,2] 李朝英[1] 李丽利[1]

第一作者：郑路

机构：[1]中国林业科学研究院热带林业实验中心;[2]广西友谊关森林生态系统定位观测研究站

年份：2013

卷号：32

期号：10

起止页码：2654-2658

中文期刊名：生态学杂志

外文期刊名：Chinese Journal of Ecology

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：林业公益性行业科研专项(201104006)资助

语种：中文

中文关键词：南亚热带;人工林;碳素密度;林分组分

外文关键词：south subtropical area; plantation; carbon density; stand component.

分类号：S963

摘要：采用干烧法对南亚热带6个树种人工林不同器官及生物组分进行碳素密度测定。结果表明:树木不同器官之间碳素密度不同,所测6个树种中以树叶和树干最高,其次为树枝,树根和干皮最低;树种之间以马尾松碳素密度最高,米老排、红椎等阔叶树种较低。林下灌木不同器官间碳素密度差异显著,其规律与乔木类似,以叶和枝碳素密度最高,根最低;林分间随着林分密度增加,林下灌木碳素密度呈下降趋势。林下草本碳素密度的分布规律是地上部分大于地下部分;不同林分间碳素密度变化规律与灌木相似。由未分解、半分解到完全分解,地表凋落物碳素密度快速下降。林分内不同生物组分之间,碳素密度从高到低依次为乔木>灌木>草本>地表凋落物。
By using combustion method, this paper measured the carbon density in the tree, shrub, herb, and litter layers of six tree species plantations in a subtropical area of China. For the six plantations, the carbon density in different parts of trees varied, being the highest in leaf and trunk, followed by in branch, and the lowest in root and bark. Among the tree species, Pinus massoniana had the highest carbon density, while Mytilaria laosensis and Castanopsis hystrix had the lower one. The carbon density in different parts of understory shrubs had significant difference, with a similar pattern to that in different parts of trees, i.e., being the highest in leaf and branch, and the lowest in root. With the increasing density of the stands, the carbon density of understory shrubs presented a decreasing trend. In herb layer, the carbon density was higher in aboveground part than in belowground part, and had a similar distribution pattern to that in different parts of understory shrubs. In litter layer, the carbon density decreased rapidly from un-decomposed layer to semi-decomposed layer to humus layer. In the stand components, the carbon density was in the order of tree layer 〉 shrub layer 〉 herb layer 〉 litter layer.