Vertical distribution of ammonia-oxidizing microorganisms across a soilprofile of the Chinese Loess Plateau and their responses tonitrogen inputs

doi:10.1016/j.scitotenv.2018.04.104

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Vertical distribution of ammonia-oxidizing microorganisms across a soilprofile of the Chinese Loess Plateau and their responses tonitrogen inputs
	Tao,JJ(Tao,Jinjin)1; Bai,TS(Bai,Tongshuo)1; Xiao,R(Xiao,Rui)1; Wang,P(Wang,Peng)1; Wang,FW(Wang,Fuwei)1; Wang,Y(Wang,Yi)3; Zhang,Y(Zhang,Yi)1; Hu,SJ(Hu,Shuijin)1,2; Zhang,Yi
	2018-09-01
发表期刊	Science of the Total Environment
卷号	635 期号:2018 页码:240-248
文章类型	期刊论文
摘要	Ammonia-oxidizing archaea (AOA) and bacteria (AOB) oxidize ammonia into nitrite, the first and rate-limiting step of microbial nitrification, and exert major controls over soil nitrogen transformations. The Loess Plateau in northwest China is characterized with deep soils that are often exposed to the surface and reactive nitrogen (N) inputs due to erosion and human removal of the surface soil. However, few have examined the distribution of AOA and AOB along the profile of Loess Plateau soils and their responses to N inputs. We examined the abundance and diversity of AOA and AOB along the soil profile (0-100cm) and their responses to two levels of N inputs (low at 10, and high at 100μgNg-1 soil) in a 55-d incubation experiment. While AOB were most numerous in the surface soil (0-20cm), AOA were most abundant in the subsoils (20-40 and 40-60cm), suggesting a niche differentiation between AOA and AOB along the soil profile. High N input increased AOB nearly ten-fold in the upper two layers of soils (0-20 and 20-40cm) and sixteen to twenty-five fold in the deeper soil layers (40-60, 60-80 and 80-100cm). However, it only increased AOA by 7% (40-60cm) to 48% (20-40cm). In addition, potential nitrification rate and N2O emissions correlated only with AOB. Finally, high N input significantly increased AOB diversity and led to nitrite accumulation in deep soil layers (60-80 and 80-100cm). Together, our results showed that high N input can significantly alter the diversity and function of ammonia-oxidizing microbes in the deep soil of Loess Plateau, suggesting the need to examine the generality of the observed changes and their potential environmental impacts.
关键词	Soil Erosion Deep Soil Ammonia-oxidizing Archaea Ammonia-oxidizing Bacteria Nitrous Oxide Nitrite Accumulation
DOI	10.1016/j.scitotenv.2018.04.104
收录类别	SCI
所属项目编号	2017YFC0503902 ; 31600383 ; 41671269 ; KJQN201743 ; 2017M611831
语种	英语
项目资助者	National Key R&D Programof China ; National Key R&D Programof China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Fundamental Research Fundsfor the Central Universities ; Fundamental Research Fundsfor the Central Universities ; China PostdoctoralScience Foundation ; China PostdoctoralScience Foundation
引用统计	被引频次：30[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/5371
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Zhang,Yi
作者单位	1.Ecosystem Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China 2.Department of Entomology & Plant Pathology, North Carolina State University, Raleigh, NC 27695, USA 3.State Key Laboratory of Loess and Quaternary, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
推荐引用方式 GB/T 7714	Tao,JJ,Bai,TS,Xiao,R,et al. Vertical distribution of ammonia-oxidizing microorganisms across a soilprofile of the Chinese Loess Plateau and their responses tonitrogen inputs[J]. Science of the Total Environment,2018,635(2018):240-248.
APA	Tao,JJ.,Bai,TS.,Xiao,R.,Wang,P.,Wang,FW.,...&Zhang,Yi.(2018).Vertical distribution of ammonia-oxidizing microorganisms across a soilprofile of the Chinese Loess Plateau and their responses tonitrogen inputs.Science of the Total Environment,635(2018),240-248.
MLA	Tao,JJ,et al."Vertical distribution of ammonia-oxidizing microorganisms across a soilprofile of the Chinese Loess Plateau and their responses tonitrogen inputs".Science of the Total Environment 635.2018(2018):240-248.

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