Soil Bacterial Communities Respond to Mowing and Nutrient Addition in a Steppe Ecosystem

doi:10.1371/journal.pone.0084210

	Soil Bacterial Communities Respond to Mowing and Nutrient Addition in a Steppe Ecosystem
	Zhang, Ximei ; Chen, Quansheng 1; Han, Xingguo1
	2013
发表期刊	PLOS ONE
ISSN	1932-6203
卷号	8 期号:12
摘要	In many grassland ecosystems, nitrogen (N) and phosphorus (P) are added to improve plant productivity, and the aboveground plant biomass is mowed and stored as hay for the bullamacow. Nutrient addition and mowing affect the biodiversity and ecosystem functioning, and most of the previous studies have primarily focused on their effects on macro-organisms, neglecting the responses of soil microbial communities. In this study, we examined the changes in three community attributes (abundance, richness, and composition) of the entire bacterial kingdom and 16 dominant bacterial phyla/classes in response to mowing, N addition, P addition, and their combinations, by conducting a 5-year experiment in a steppe ecosystem in Inner Mongolia, China. Overall, N addition had a greater effect than mowing and P addition on most of these bacterial groups, as indicated by changes in the abundance, richness and composition in response to these treatments. N addition affected these soil bacterial groups primarily through reducing soil pH and increasing available N content. Meanwhile, the 16 bacterial phyla/classes responded differentially to these experimental treatments, with Acidobacteria, Acidimicrobidae, Deltaproteobacteria, and Gammaproteobacteria being the most sensitive. The changes in the abundance, richness, and composition of various bacterial groups could imply some potential shift in their ecosystem functions. Furthermore, the important role of decreased soil pH caused by N addition in affecting soil bacterial communities suggests the importance of restoring acidified soil to maintain soil bacterial diversity.
学科领域	Multidisciplinary Sciences
DOI	10.1371/journal.pone.0084210
收录类别	SCI
语种	英语
WOS关键词	MICROBIAL COMMUNITY ; NITROGEN ADDITION ; SP-NOV ; DEPOSITION ; DIVERSITY ; STABILITY ; DYNAMICS ; RESOURCE
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000329323900058
出版者	PUBLIC LIBRARY SCIENCE
文献子类	Article
出版地	SAN FRANCISCO
资助机构	National Natural Science Foundation(National Natural Science Foundation of China (NSFC)) ; Postdoctoral Science Foundation of China(China Postdoctoral Science Foundation)
作者邮箱	Han, Xingguo/K-7552-2016 ; Chen, Quansheng/AGH-8083-2022
作品OA属性	Green Published, Green Submitted, gold
引用统计	被引频次：34[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27806
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ximei,Chen, Quansheng,Han, Xingguo. Soil Bacterial Communities Respond to Mowing and Nutrient Addition in a Steppe Ecosystem[J]. PLOS ONE,2013,8(12).
APA	Zhang, Ximei,Chen, Quansheng,&Han, Xingguo.(2013).Soil Bacterial Communities Respond to Mowing and Nutrient Addition in a Steppe Ecosystem.PLOS ONE,8(12).
MLA	Zhang, Ximei,et al."Soil Bacterial Communities Respond to Mowing and Nutrient Addition in a Steppe Ecosystem".PLOS ONE 8.12(2013).

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