Tree species mixture inhibits soil organic carbon mineralization accompanied by decreased r-selected bacteria

doi:10.1007/s11104-018-3755-x

CORC > 成都生物研究所 > 中国科学院成都生物研究所 > 食品安全与环境治理领域 > 应用与环境微生物研究

	Tree species mixture inhibits soil organic carbon mineralization accompanied by decreased r-selected bacteria
	Zhang, Xiao 1,6; Liu, Shirong 1; Huang, Yongtao 6; Fu, Shenglei 6; Wang, Jingxin 2; Ming, Angang 3,4; Li, Xiangzhen 5; Yao, Minjie 5; Li, Huan 5
刊名	PLANT AND SOIL
	2018-10-01
卷号	431 期号:1-2 页码:203-216
关键词	Mixed-species plantation r-selected bacteria K-selected bacteria Soil C mineralization LMW compounds
ISSN号	0032-079X
DOI	10.1007/s11104-018-3755-x
产权排序	6
文献子类	Article
英文摘要	Mixed-tree species plantations demonstrate higher productivity, soil carbon sequestration capacity, and various soil nutrient contents relative to single-species plantations. Despite the critical role of soil microbes in mediating soil various biogeochemical processes, the effects of tree species mixtures on bacterial community structure and ecological function remain unclear. High-throughput 16S rRNA gene sequencing was used to examine the composition of soil bacterial communities in five single-species plantations and three corresponding mixed plantations. The plantations were established on the same initial substrate, and sampling was conducted in 68 relatively spatially-independent sites. Our results showed tree species mixture significantly altered the soil bacterial community composition and structure, compared with single-species plantations. Especially, Tree species mixture increased the relative abundance of K-strategists (Acidobacteria) and decreased the relative abundance of r-strategists (Proteobacteria and Bacteroidetes). The changes on soil bacterial community composition were largely explained by low molecular weight (LMW; < 250 Da) compounds of dissolved organic C (DOC). Tree species mixture significantly decreased soil C mineralization rates, and there was a negative relationship between soil C mineralization rates and the abundance of K-strategists and a positive relationship for r-strategists. Our results provide preliminary evidence that tree species mixture can significantly alter soil bacterial community composition and their implications on soil organic matter mineralization. This study represents an important step forward in understanding the underlying mechanisms by which plant-microbe interactions influence functions of belowground ecosystems.
学科主题	Environment ; Ecology
URL标识	查看原文
WOS关键词	MICROBIAL COMMUNITIES ; ROOT EXUDATION ; NITROGEN TRANSFORMATIONS ; TEMPERATURE SENSITIVITY ; MAIZE RHIZOSPHERE ; N AVAILABILITY ; ELEVATED CO2 ; DECOMPOSITION ; PLANTATIONS ; DIVERSITY
WOS研究方向	Agriculture ; Plant Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000444759900014
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/30145]
专题	环境治理与食品安全领域_应用与环境微生物研究
作者单位	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.West Virginia Univ, Div Forestry & Nat Resources, POB 6215, Morgantown, WV 26506 USA; 3.Guangxi Youyiguan Forest Ecosyst Res Stn, Pingxiang 532600, Peoples R China; 4.CAF, Expt Ctr Trop Forestry, Pingxiang 532600, Peoples R China; 5.Chinese Acad Sci & Environm Microbiol, Key Lab Environm & Appl Microbiol, Chengdu 610041, Sichuan, Peoples R China 6.Henan Univ, Coll Environm & Planning, Key Lab Geospatial Technol Middle & Lower Yellow, Jinming Ave, Kaifeng 475004, Peoples R China;
推荐引用方式 GB/T 7714	Zhang, Xiao,Liu, Shirong,Huang, Yongtao,et al. Tree species mixture inhibits soil organic carbon mineralization accompanied by decreased r-selected bacteria[J]. PLANT AND SOIL,2018,431(1-2):203-216.
APA	Zhang, Xiao.,Liu, Shirong.,Huang, Yongtao.,Fu, Shenglei.,Wang, Jingxin.,...&Li, Huan.(2018).Tree species mixture inhibits soil organic carbon mineralization accompanied by decreased r-selected bacteria.PLANT AND SOIL,431(1-2),203-216.
MLA	Zhang, Xiao,et al."Tree species mixture inhibits soil organic carbon mineralization accompanied by decreased r-selected bacteria".PLANT AND SOIL 431.1-2(2018):203-216.