Contrasting effects of nitrogen forms and soil pH on ammonia oxidizing microorganisms and their responses to long-term nitrogen fertilization in a typical steppe ecosystem

doi:10.1007/s00299-017-2150-z

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	Contrasting effects of nitrogen forms and soil pH on ammonia oxidizing microorganisms and their responses to long-term nitrogen fertilization in a typical steppe ecosystem
	Ying, Jiaoyan ; Li, Xiaoxiao 1,3; Wang, Nana 4; Lan, Zhichun ; He, Jizheng 1; Bai, Yongfei
刊名	SOIL BIOLOGY & BIOCHEMISTRY
	2017
卷号	107 页码:10-18
关键词	Ammonia-oxidizing bacteria Ammonia-oxidizing archaea Soil pH N availability Nitrate
ISSN号	0038-0717
DOI	10.1007/s00299-017-2150-z
文献子类	Article
英文摘要	Ammonia-oxidizing microorganisms, i.e. ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA), are the primary agents responsible for soil nitrification. Few studies, however, have evaluated how AOA and AOB responses to long-term N fertilization are affected by soil pH and different forms of nitrogen (N). We examined the effects of soil acidification and different forms of N (NH4+ and NOD on abundances and community structure of AOA and AOB based on a field acid addition experiment and a short-term microcosm N addition experiment. The field acid addition experiment demonstrated that, with decreasing soil pH, AOB abundance decreased while AOA abtindance mostly increased except for an extremely low pH treatment. Relationships between soil pH and abundance of ammonia oxidizers in the acid addition experiment conflict with those in the long-term N fertilization experiment, indicating a predominant role of N rather than soil pH on responses of AOB and AOA under N inputs. The short-term N addition experiment confirmed the general positive effect of NH4+. on AOB and the negative effect of NOT on AOA which help explain the responses of AOB and AOA abundance to long-term N fertilization. Community structure of ammonia oxidizers, in contrast, showed little response to acid addition and short-term N additions. The positive responses of AOB and not AOA to various N additions revealed a dominant role of AOB in nitrification with broad ranges of soil pH and N availability. We found a negative effect of No-3(-) addition on AOA abundance, which may be a key factor limiting contributions of AOA to nitrification in many soils. (C) 2016 Elsevier Ltd. All rights reserved.
学科主题	Plant Sciences
出版地	OXFORD
WOS关键词	ARCHAEA ; BACTERIA ; DIVERSITY ; OXIDATION ; NITRIFICATION ; ABUNDANCE ; THRESHOLDS ; RATHER
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000405680300005
资助机构	State Key Research and Development Program of China [2016YFC0500801] ; Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31170404] ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDA05050400]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/21971]
专题	植被与环境变化国家重点实验室
作者单位	1.Xian Univ, Sch Biol & Environm Engn, Xian 710065, Peoples R China 2.Jiangxi Agr Univ, Coll Land Resources & Environm, Nanchang 330045, Jiangxi, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Ying, Jiaoyan,Li, Xiaoxiao,Wang, Nana,et al. Contrasting effects of nitrogen forms and soil pH on ammonia oxidizing microorganisms and their responses to long-term nitrogen fertilization in a typical steppe ecosystem[J]. SOIL BIOLOGY & BIOCHEMISTRY,2017,107:10-18.
APA	Ying, Jiaoyan,Li, Xiaoxiao,Wang, Nana,Lan, Zhichun,He, Jizheng,&Bai, Yongfei.(2017).Contrasting effects of nitrogen forms and soil pH on ammonia oxidizing microorganisms and their responses to long-term nitrogen fertilization in a typical steppe ecosystem.SOIL BIOLOGY & BIOCHEMISTRY,107,10-18.
MLA	Ying, Jiaoyan,et al."Contrasting effects of nitrogen forms and soil pH on ammonia oxidizing microorganisms and their responses to long-term nitrogen fertilization in a typical steppe ecosystem".SOIL BIOLOGY & BIOCHEMISTRY 107(2017):10-18.