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Carbon concentrations of components of trees in 10-year-old Populus davidiana stands within the Desertification Combating Program of Northern China

文献类型： 外文期刊

作者： Shen, Huitao 1 ; Zhang, Wanjun 2 ; Cao, Jiansheng 2 ; Zhang, Xiang 3 ; Xu, Quanhong 1 ; Yang, Xue 4 ; Xiao, Dengpan 1 ; Zhao, Yanxia 1 ;

作者机构： 1.Hebei Acad Sci, Inst Geog Sci, Shijiazhuang 050011, Peoples R China

2.Chinese Acad Sci, Key Lab Agr Water Resources, Hebei Key Lab Agr Water Saving, Ctr Agr Resources Res,Inst Genet & Dev Biol, Shijiazhuang 050021, Peoples R China

3.Shandong Acad Agr Sci, Inst Agrofood Sci & Technol, Jinan 250100, Peoples R China

4.Kunming Univ, Coll Agr, Kunming 650214, Peoples R China

关键词： biomass carbon equation; carbon content; destructive sampling; diameter at breast height; poplar

期刊名称：FRONTIERS OF EARTH SCIENCE （ 影响因子：2.031； 五年影响因子：1.836 ）

ISSN： 2095-0195

年卷期： 2016 年 10 卷 4 期

页码：

收录情况： SCI

摘要： Most studies do not consider the potential variation in carbon concentration among the different tree components of the same species in regional scale. This study examined the carbon concentrations of the components (i.e., foliage, branch, stem, and root) in a 10-year-old poplar species (Populus davidiana Dode) from the Desertification Combating Program of Northern China. The highest and lowest carbon concentrations were found in the stem and foliage, respectively. There was a significant difference in carbon concentrations among the different tree components. All of the observed carbon concentrations of tree components were lower than those predicted using the conversion factor of 0.5 applied to component biomass. Stem carbon made up 59.7% of the total tree biomass carbon. The power equation estimating proportion of tree biomass carbon against the independent variable of diameter at breast height explained more than 90% of the variability in allocation of carbon among tree components. Tree height, as a second independent variable is also discussed. Our results suggest that the difference in organic carbon concentration among tree components should be incorporated into accurately develop forest carbon budget. Moreover, further investigations on how the diameter at breast height equation developed in the present study performs across broader scales are required.

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