气候变化领域集成服务门户(CCPortal): The driving effect of nitrogen-related functional microorganisms under water and nitrogen addition on N2O emission in a temperate desert

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DOI	10.1016/j.scitotenv.2021.145470
	The driving effect of nitrogen-related functional microorganisms under water and nitrogen addition on N2O emission in a temperate desert
	Yue, Ping; Zuo, Xiaoan; Li, Kaihui; Cui, Xiaoqing; Wang, Shaokun; Misselbrook, Tom; Liu, Xuejun
通讯作者	Liu, XJ (通讯作者)，China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China.
发表日期	2021
ISSN	0048-9697
EISSN	1879-1026
卷号	772
英文摘要	Nitrous oxide (N2O) is an important greenhouse gas and a precursor of ozone depletion in the upper atmosphere, thus contributing to climate change and biological safety. The mechanisms and response characteristics of N2O emission in desert soils to precipitation and nitrogen (N) deposition are still unclear. To further elucidate this, an in-situ experiment was conducted in the Gurbantunggut Desert, a temperate desert in China, between June and September 2015 and 2016. The response in N2O flux to water addition (equivalent to 5 mm precipitation) was very transient in summer, only lasting one to two days.This was attributed to the rapid decrease in soil moisture following the water addition, due to the high temperature and drought conditions, and there was no significant change in N2O emission or in the abundance of N-related key functional genes. In contrast, N2O emissions increased significantly in response to N addition. This was associated with an increase in functional gene abundances of amoA (ammonia oxidizing bacteria (AOB)) and ammonia-oxidizing archaea (AOA), which responded positively to increasing soil NH4+-N content, but were inhibited by increasing soil NO3--N content. The abundance of the nirS (nitrate reductase) gene was significantly increased by increasing soil NO3--N content. Interestingly, the indirect effect of increased soil moisture in enhancing N2O emission by increasing the abundance of AOA was offset by a direct effect of soil moisture in inhibiting soil N2O emission. Overall, N2O emissions were mainly controlled by AOA rather than AOB in summer, and were more sensitive to soil available N than to soil moisture in this temperate desert. (C) 2021 Elsevier B.V. All rights reserved.
关键词	AMMONIA-OXIDIZING BACTERIA SOIL RESPIRATION INNER-MONGOLIA PRECIPITATION ARCHAEA FLUXES DEPOSITION RESPONSES DIVERSITY OXIDATION
英文关键词	N2O flux; Functional genes; Increasing precipitation; Nitrogen deposition
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000628753700093
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254274
作者单位	[Yue, Ping; Zuo, Xiaoan; Wang, Shaokun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou 730000, Peoples R China; [Yue, Ping; Zuo, Xiaoan; Wang, Shaokun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou 730000, Peoples R China; [Yue, Ping; Li, Kaihui] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Cui, Xiaoqing; Liu, Xuejun] China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China; [Misselbrook, Tom] Rothamsted Res, North Wyke, Okehampton EX20 2SB, Devon, England
推荐引用方式 GB/T 7714	Yue, Ping,Zuo, Xiaoan,Li, Kaihui,et al. The driving effect of nitrogen-related functional microorganisms under water and nitrogen addition on N2O emission in a temperate desert[J]. 中国科学院西北生态环境资源研究院,2021,772.
APA	Yue, Ping.,Zuo, Xiaoan.,Li, Kaihui.,Cui, Xiaoqing.,Wang, Shaokun.,...&Liu, Xuejun.(2021).The driving effect of nitrogen-related functional microorganisms under water and nitrogen addition on N2O emission in a temperate desert.SCIENCE OF THE TOTAL ENVIRONMENT,772.
MLA	Yue, Ping,et al."The driving effect of nitrogen-related functional microorganisms under water and nitrogen addition on N2O emission in a temperate desert".SCIENCE OF THE TOTAL ENVIRONMENT 772(2021).