Soil N2O production and the delta N-15-N2O value: Their relationship with nitrifying/denitrifying bacteria and archaea during a growing season of soybean in northeast China

doi:10.1016/j.ejsobi.2013.05.008

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	Soil N2O production and the delta N-15-N2O value: Their relationship with nitrifying/denitrifying bacteria and archaea during a growing season of soybean in northeast China
	Xia, Zongwei 1,2; Xu, Hui 1; Chen, Guanxiong 1; Dong, Dan 1; Bai, E.1; Luo, Liangguo 3
刊名	EUROPEAN JOURNAL OF SOIL BIOLOGY
	2013
卷号	58 页码:73-80
关键词	Nitrous oxide (N2O) N-15 isotope Ammonia-oxidizing bacteria (AOB) Ammonia-oxidizing archaea (AOA) Denitrification
ISSN号	1164-5563
DOI	10.1016/j.ejsobi.2013.05.008
通讯作者	Xia, Zongwei
英文摘要	Nitrous oxide, one of the principal greenhouse gases that can cause global warming, is mainly produced in soil via a series of microbial enzymatic processes. However, source identification of N2O in soil has been a great challenge. In this study, a laboratory incubation experiment was conducted with soils sampled from a soybean field on six sampling dates to evaluate a new approach for identifying soil N2O production processes. The isotopic signatures of soil-emitted N2O, the copy numbers of nitrification- and denitrification-related genes, and some soil properties were monitored simultaneously. Results showed that the soil N2O flux was related to water-filled pore space (WFPS) during the sampling period (r = 0.73, p < 0.01). The delta N-15 values of soil-emitted N2O on the six sampling dates ranged from -11.3 parts per thousand to + 1.6 parts per thousand., and significant differences among these values were found. The delta N-15-N2O values were significantly correlated with the copy numbers of AOB amoA (r = 0.80, p < 0.01) but not with those of AOA amoA. These results suggested that soil WFPS was a determinative factor of N2O production processes, and AOB played a more important role in N2O production in the tested soil. Therefore, the combination of a stable isotopic signature with abundance of the soil microbial community should be a more effective approach to identify soil microbial processes of N2O production. (C) 2013 Elsevier Masson SAS. All rights reserved.
学科主题	Ecology ; Soil Science ; ECOLOGY ; SOIL SCIENCE
语种	英语
出版者	ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
WOS记录号	WOS:000324901700013
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19841]
专题	农业环境与可持续发展研究所_生态安全研究室
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Minist Agr, Key Lab Agroenvironm & Climate Change, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Xia, Zongwei,Xu, Hui,Chen, Guanxiong,et al. Soil N2O production and the delta N-15-N2O value: Their relationship with nitrifying/denitrifying bacteria and archaea during a growing season of soybean in northeast China[J]. EUROPEAN JOURNAL OF SOIL BIOLOGY,2013,58:73-80.
APA	Xia, Zongwei,Xu, Hui,Chen, Guanxiong,Dong, Dan,Bai, E.,&Luo, Liangguo.(2013).Soil N2O production and the delta N-15-N2O value: Their relationship with nitrifying/denitrifying bacteria and archaea during a growing season of soybean in northeast China.EUROPEAN JOURNAL OF SOIL BIOLOGY,58,73-80.
MLA	Xia, Zongwei,et al."Soil N2O production and the delta N-15-N2O value: Their relationship with nitrifying/denitrifying bacteria and archaea during a growing season of soybean in northeast China".EUROPEAN JOURNAL OF SOIL BIOLOGY 58(2013):73-80.