文献类型：期刊文献

英文题名：Mixed-species plantation with Pinus massoniana and Castanopsis hystrix accelerates C loss in recalcitrant coniferous litter but slows C loss in labile broadleaf litter in southern China

作者：Wang, Hui[1] Liu, Shirong[1] Wang, Jingxin[2] You, Yeming[3] Yang, Yujing[1] Shi, Zuomin[1] Huang, Xueman[3] Zheng, Lu[4] Li, Zhaoying[4] Ming, Angang[4] Lu, Lihua[4] Cai, Daoxiong[4]

通信作者：Liu, SR[1]

机构：[1]Chinese Acad Forestry, Inst Forest Ecol Environm & Protect, Key Lab Forest Ecol & Environm, Chinas State Forestry Adm, 2 Dongxiaofu, Beijing 100091, Peoples R China;[2]West Virginia Univ, Div Forestry & Nat Resources, POB 6215, Morgantown, WV 26506 USA;[3]Guangxi Univ, Coll Forestry, Nanning 530004, Guangxi, Peoples R China;[4]Chinese Acad Forestry, Expt Ctr Trop Forestry, Guangxi Youyiguan Forest Ecosyst Res Stn, Pingxiang 532600, Guangxi, Peoples R China

年份：2018

卷号：422

起止页码：207-213

外文期刊名：FOREST ECOLOGY AND MANAGEMENT

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000433653900022)】；

基金：We would like to thank the Guangxi Youyiguan Forest Ecosystem Research Station for experimental and logistical support, and RM He and H Chen for assistance in field work. This work was supported by grants from the National Natural Science Foundation of China (31470627, 31100380), the Fundamental Research Funds of Chinese Academy of Forestry (CAFYBB2017QB004, CAFYBB2018SZ005), Ministry of Science and Technology (2015DFA31440), and CFERN & BEIJING TECHNO SOLUTIONS Award Funds on excellent academic achievements.

语种：英文

外文关键词：Carbon chemical composition; Close-to-nature forest; Litter decomposition; Mixed-species plantation; Subtropical China

摘要：Litter decomposition varies with forest type in complex ways and is significantly dependent on tree species diversity. A field litterbag experiment was conducted in monospecific and mixed-species plantations of Pinus massoniana and Castanopsis hystrix in subtropical China, to examine the effects of litter mixing and changing stand environment on the litter decomposition rate and the composition-specific litter organic C loss rate of P. massoniana and C. hystrix. Admixing with the lower-quality P. massoniana litter slowed C. hystrix litter decomposition and recalcitrant C loss, whereas admixing with the higher-quality C. hystrix litter hastened P. massoniana litter decomposition in the mixed-species plantation. The P. massoniana litter exhibited a faster decomposition rate in the mixed-species plantation than in the P. massoniana monospecific plantation. The same trend was found in the loss rates of aromatic C and carbonyl C from P. massoniana litter. The greater soil organic matter content and nitrogen availability in the mixed-species plantation than in the P. massoniana monospecific plantation could have resulted in the increased rates of decomposition and organic C loss in P. massoniana litter. This study highlights that maintaining mixed conifer-broadleaf forests and/or adopting close-to-nature forest management could accelerate the decomposition of recalcitrant coniferous litter, facilitating C sequestration and mitigating the C emissions derived from the labile broadleaf litter.