文献类型：期刊文献

英文题名：Above- and Below-Ground Carbon Stocks in an Indigenous Tree (Mytilaria laosensis) Plantation Chronosequence in Subtropical China

作者：Ming, Angang[1,2,3] Jia, Hongyan[1,3] Zhao, Jinlong[4] Tao, Yi[1] Li, Yuanfa[5]

第一作者：明安刚;Ming, Angang

通信作者：Li, YF[1]

机构：[1]Chinese Acad Forestry, Expt Ctr Trop Forestry, Pingxiang, Guangxi, Peoples R China;[2]Chinese Acad Forestry, Inst Forest Ecol Environm & Protect, Beijing, Peoples R China;[3]Guangxi Youyiguan Forest Ecosyst Res Stn, Pingxiang, Guangxi, Peoples R China;[4]Beijing Forestry Univ, Coll Forestry, Beijing, Peoples R China;[5]Guangxi Univ, Coll Forestry, Nanning 530004, Guangxi, Peoples R China

年份：2014

卷号：9

期号：10

外文期刊名：PLOS ONE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000343943500022)】；

基金：Our research was financially supported by the Fundamental Research Funds for the Central Non-profit Research Institution of CAF (No. CAFYBB2014QA033), Nature Science Foundation of Guangxi (No 2014jjBA30073), The Ministry of Science and Technology (2012BAD22B01), National Science Foundation of China (No 31400542), and the Director Foundation Project of the Experimental Centre of Tropical Forestry, Chinese Academy of Forestry (No. RL2011-02). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

语种：英文

摘要：More than 60% of the total area of tree plantations in China is in subtropical, and over 70% of subtropical plantations consist of pure stands of coniferous species. Because of the poor ecosystem services provided by pure coniferous plantations and the ecological instability of these stands, a movement is under way to promote indigenous broadleaf plantation cultivation as a promising alternative. However, little is known about the carbon (C) stocks in indigenous broadleaf plantations and their dependence on stand age. Thus, we studied above-and below-ground biomass and C stocks in a chronosequence of Mytilaria laosensis plantations in subtropical China; stands were 7, 10, 18, 23, 29 and 33 years old. Our assessments included tree, shrub, herb and litter layers. We used plot-level inventories and destructive tree sampling to determine vegetation C stocks. We also measured soil C stocks by analyses of soil profiles to 100 cm depth. C stocks in the tree layer dominated the above-ground ecosystem C pool across the chronosequence. C stocks increased with age from 7 to 29 years and plateaued thereafter due to a reduction in tree growth rates. Minor C stocks were found in the shrub and herb layers of all six plantations and their temporal fluctuations were relatively small. C stocks in the litter and soil layers increased with stand age. Total above-ground ecosystem C also increased with stand age. Most increases in C stocks in below-ground and total ecosystems were attributable to increases in soil C content and tree biomass. Therefore, considerations of C sequestration potential in indigenous broadleaf plantations must take stand age into account.