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, Shirong

机构：[1] Key Laboratory of Forest Ecology and Environment, China's State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, No. 2 Dongxiaofu, Haidian District, Beijing, 100091, China; [2] Division of Forestry and Natural Resources, West Virginia University, P.O. Box 6215, Morgantown, WV, 26506, United States; [3] College of Forestry, Guangxi University, Nanning, Guangxi, 530004, China; [4] Experimental Center of Tropical Forestry, Chinese Academy of Forestry, Guangxi Youyiguan Forest Ecosystem Research Station, Pingxiang, Guangxi, 532600, China

年份：2018

卷号：422

起止页码：207-213

外文期刊名：Forest Ecology and Management

收录：EI(收录号：20181705042767);Scopus(收录号：2-s2.0-85045692780)

语种：英文

外文关键词：Decomposition - Tropics

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. ? 2018 Elsevier B.V.