干旱区生态环境知识资源中心(Arid): Increasing aridity affects soil archaeal communities by mediating soil niches in semi-arid regions

Arid

DOI	10.1016/j.scitotenv.2018.07.305
	Increasing aridity affects soil archaeal communities by mediating soil niches in semi-arid regions
	Huang, Muke 1; Chai, Liwei 1; Jiang, Dalin 2; Zhang, Mengjun 1; Zhao, Yanran 1; Huang, Yi 1
通讯作者	Huang, Yi
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	647 页码:699-707
英文摘要	Soil archaea plays a vital role in the functioning of dryland ecosystems, which are expected to expand and get drier in the future as a result of climate change. However, compared with bacteria and fungi, the impacts of increasing aridity on archaea in these ecosystems remain largely unknown. Here, soil samples were collected along a typical aridity gradient in semi-arid regions in Inner Mongolia, China, to investigate whether and how the increasing aridity affects archaeal communities. The results showed that archaeal richness linearly decreased with increasing aridity. After partialling out the effects of soil properties based on partial least squares regression, the significant aridity-richness relationship vanished. The composition of archaeal communities was distributed according to the aridity gradient. These variations were largely driven by the changes in the relative abundance of Thaumarchaeota, Euryarchaeota and unclassified phyla. Niche-based processes were predominant in structuring the observed archaeal aridity-related pattern. The structural equation models further showed that aridity indirectly reduced archaeal richness through improving soil electrical conductivity (EC) and structured community composition by changing soil total nitrogen (TN). These results suggested that soil salinization and N-losses might be important mechanisms underlying the increasing aridity-induced alterations in archaeal communities, and highlighted the importance of soil niches in mediating the indirect impacts of increasing aridity on archaea. (c) 2018 Elsevier B.V. All rights reserved.
英文关键词	Archaea Aridity Soil niches Semi-arid regions
类型	Article
语种	英语
国家	Peoples R China ; Japan
收录类别	SCI-E
WOS记录号	WOS:000447090400071
WOS关键词	AMMONIA-OXIDIZING BACTERIA ; MICROBIAL COMMUNITY ; INNER-MONGOLIA ; DIVERSITY ; GRADIENT ; GRASSLANDS ; NITROGEN ; IMPACTS ; PRECIPITATION ; SEQUENCES
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218580
作者单位	1.Peking Univ, Coll Environm Sci & Engn, Beijing 100871, Peoples R China; 2.Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki 3058572, Japan
推荐引用方式 GB/T 7714	Huang, Muke,Chai, Liwei,Jiang, Dalin,et al. Increasing aridity affects soil archaeal communities by mediating soil niches in semi-arid regions[J]. 北京大学,2019,647:699-707.
APA	Huang, Muke,Chai, Liwei,Jiang, Dalin,Zhang, Mengjun,Zhao, Yanran,&Huang, Yi.(2019).Increasing aridity affects soil archaeal communities by mediating soil niches in semi-arid regions.SCIENCE OF THE TOTAL ENVIRONMENT,647,699-707.
MLA	Huang, Muke,et al."Increasing aridity affects soil archaeal communities by mediating soil niches in semi-arid regions".SCIENCE OF THE TOTAL ENVIRONMENT 647(2019):699-707.