Substrate-driven microbial response: A novel mechanism contributes significantly to temperature sensitivity of N2O emissions in upland arable soil

doi:10.1016/j.soilbio.2017.11.021

	Substrate-driven microbial response: A novel mechanism contributes significantly to temperature sensitivity of N2O emissions in upland arable soil
	Song, Alin 1; Liang, Yongchao 2; Zeng, Xibai 3; Yin, Huaqun 4; Xu, Duanyang 5; Wang, Boren 1; Wen, Shilin 1; Li, Dongchu 1; Fan, Fenliang 1
刊名	SOIL BIOLOGY & BIOCHEMISTRY
	2018-03-01
卷号	118 页码:18-26
关键词	Nitrous oxide Temperature sensitivity Microbial response Nitrification Denitrification Anaerobic-zone development
ISSN号	0038-0717
DOI	10.1016/j.soilbio.2017.11.021
通讯作者	Fan, Fenliang(fanfenliang@caas.cn)
英文摘要	The mechanism by which temperature sensitivity (TS) of soil N2O emissions is increased by agricultural management with application of nitrogen fertilizer (AMN) is unclear. We hypothesized that a higher TS of N2O emission induced by AMN is the result of the faster growth of specific microorganisms in response to faster nitrogen (N) mineralization at higher temperatures. To test this hypothesis, we used reciprocal transplants to separate the contributions of abiotic and microbial components to the TS of N2O emissions in an arable soil receiving organic and inorganic fertilizers and its neighboring natural grassland soil treated with two levels of N. N2O sources were separated with acetylene, and the abundances of N2O-producing microbes were assessed by quantifying the copy numbers of the associated functional genes. Compared with natural soil, only changes in abiotic properties increased the Q(10) (the factor by which the rate increases with a 10 degrees C rise in temperature) by 105.7%, while changes in both abiotic and the microbiome increased the Q(10) by 225.2%. Higher TS of N2O emission in the arable soil induced by a microbiome shift was associated with faster N mineralization, increased proportion of nitrification-N2O emission, and faster growth of ammonia-oxidizing bacteria at higher temperatures. Addition of ammonium nitrate further enhanced the TS of N2O emissions, the proportion of nitrification N2O emission, and the increased extent of the growth of ammonia-oxidizing bacteria in the soil with AMN compared to the natural grassland soil. Substrate-driven growth of ammonia-oxidizing bacteria with higher substrate preference contributes significantly to the higher TS of N2O emission caused by AMN.
资助项目	National Key Research and Development Program of China[2016YFD0200109] ; National Key Research and Development Program of China[2016YDF0800707] ; National Key Basic Research Program of China[2014CB441001] ; National Natural Science Foundation of China[41571297] ; National Nonprofit Institute Research Grant of CAAS[IARRP-2014-29] ; National Nonprofit Institute Research Grant of CAAS[IARRP-2015-20]
WOS关键词	AMMONIA-OXIDIZING ARCHAEA ; NITROUS-OXIDE N2O ; INORGANIC FERTILIZATION ; CARBON ; COMMUNITY ; DENITRIFICATION ; NITRIFICATION ; DIVERSITY ; BACTERIA ; DECOMPOSITION
WOS研究方向	Agriculture
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000428490500003
资助机构	National Key Research and Development Program of China ; National Key Basic Research Program of China ; National Natural Science Foundation of China ; National Nonprofit Institute Research Grant of CAAS
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/57330]
专题	中国科学院地理科学与资源研究所
通讯作者	Fan, Fenliang
作者单位	1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Plant Nutr & Fertilizer, Beijing 100081, Peoples R China 2.Zhejiang Univ, Key Lab Environm Remediat & Ecol Hlth, Coll Environm & Resource Sci, Minist Educ, Hangzhou 310058, Zhejiang, Peoples R China 3.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China 4.Cent S Univ, Sch Minerals Proc & Bioengn, Minist Educ, Key Lab Biomet, Changsha 410083, Hunan, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Song, Alin,Liang, Yongchao,Zeng, Xibai,et al. Substrate-driven microbial response: A novel mechanism contributes significantly to temperature sensitivity of N2O emissions in upland arable soil[J]. SOIL BIOLOGY & BIOCHEMISTRY,2018,118:18-26.
APA	Song, Alin.,Liang, Yongchao.,Zeng, Xibai.,Yin, Huaqun.,Xu, Duanyang.,...&Fan, Fenliang.(2018).Substrate-driven microbial response: A novel mechanism contributes significantly to temperature sensitivity of N2O emissions in upland arable soil.SOIL BIOLOGY & BIOCHEMISTRY,118,18-26.
MLA	Song, Alin,et al."Substrate-driven microbial response: A novel mechanism contributes significantly to temperature sensitivity of N2O emissions in upland arable soil".SOIL BIOLOGY & BIOCHEMISTRY 118(2018):18-26.