文献类型：期刊文献

英文题名：Differential effects of conifer and broadleaf litter inputs on soil organic carbon chemical composition through altered soil microbial community composition

作者：Wang, Hui[1] Liu, Shi-Rong[1] Wang, Jing-Xin[2] Shi, Zuo-Min[1] Xu, Jia[1] Hong, Pi-Zheng[1] Ming, An-Gang[3] Yu, Hao-Long[3] Chen, Lin[3] Lu, Li-Hua[3] Cai, Dao-Xiong[3]

通信作者：Liu, SR[1]

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

年份：2016

卷号：6

外文期刊名：SCIENTIFIC REPORTS

收录：;Scopus(收录号：2-s2.0-84973311504);WOS:【SCI-EXPANDED(收录号:WOS:000376981000003)】；

基金：We would like to thank the Guangxi Youyiguan Forest Ecosystem Research Station for experimental stand maintenance and logistical support; RM He, H Chen, Y Wang, D Luo, X Tang, X Zhang and CY Li for assistance in field work and laboratory analysis; YT Fang and XH Wei for reviewing earlier drafts of this manuscript. Grants from the China National Natural Science Foundation (31100380, 31290223), the Ministry of Science and Technology (2015DFA31440, 2012BAD22B01), and the Lecture and Study Program for Outstanding Scholars from Home and Abroad (CAFYBB2011007) supported this work. This paper was also supported by CFERN & GENE Award Funds on Ecological Paper.

语种：英文

摘要：A strategic selection of tree species will shift the type and quality of litter input, and subsequently magnitude and composition of the soil organic carbon (SOC) through soil microbial community. We conducted a manipulative experiment in randomized block design with leaf litter inputs of four native subtropical tree species in a Pinus massoniana plantation in southern China and found that the chemical composition of SOC did not differ significantly among treatments until after 28 months of the experiment. Contrasting leaf litter inputs had significant impacts on the amounts of total microbial, Gram-positive bacterial, and actinomycic PLFAs, but not on the amounts of total bacterial, Gram-negative bacterial, and fungal PLFAs. There were significant differences in alkyl/O-alkyl C in soils among the leaf litter input treatments, but no apparent differences in the proportions of chemical compositions (alkyl, O-alkyl, aromatic, and carbonyl C) in SOC. Soil alkyl/O-alkyl C was significantly related to the amounts of total microbial, and Gram-positive bacterial PLFAs, but not to the chemical compositions of leaf litter. Our findings suggest that changes in forest leaf litter inputs could result in changes in chemical stability of SOC through the altered microbial community composition.