气候变化领域集成服务门户(CCPortal): Nitrogen loss process in hypoxic seawater based on the culture experiment

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DOI	10.1016/j.marpolbul.2020.110912
	Nitrogen loss process in hypoxic seawater based on the culture experiment
	Tian D.; Wang Y.; Xing J.; Sun Q.; Song J.; Li X.
发表日期	2020
ISSN	0025326X
卷号	152
英文摘要	The oxygen minimum zones (OMZs) and other hypoxic seawaters are considered as the main areas of oceanic nitrogen loss. The laboratory simulation culture was conducted to study the main reactions, rates and proportions of dissolved inorganic nitrogen (DIN) in different dissolved oxygen concentrations seawater, with aim of clarifying the process of nitrogen loss in hypoxic seawater. The results showed that the change of DIN in hypoxic water could be divided into three stages. In the first stage, the main reactions were the dissimilatory nitrate reduction to ammonium (DNRA) and denitrification. In the second stage, anammox and denitrification were main reactions. In the last stage, anammox was the most important nitrogen loss reaction; nitrogen loss eventually reached a relative balance with the input from sediment mineralization. Based on the data obtained from the last stage, the annual nitrogen loss could be estimated to be about 240–260 Tg in the global OMZs. © 2020 Elsevier Ltd
英文关键词	Dissolved inorganic nitrogen; Hypoxic; Simulated culture experiment; Transformation
语种	英语
scopus关键词	Denitrification; Dissolution; Nitrogen; Nitrogen removal; Seawater; Wastewater treatment; Dissimilatory nitrate reduction; Dissolved inorganic nitrogens; Dissolved oxygen concentrations; Hypoxic; Laboratory simulation; Oceanic nitrogen; Oxygen minimum zone; Transformation; Dissolved oxygen; ammonia; nitrogen; sea water; ammonium derivative; nitric acid derivative; nitrogen; oxygen; sea water; concentration (composition); dissolved inorganic nitrogen; experimental study; hypoxic conditions; laboratory method; seawater; Article; chemical parameters; chemical phenomena; concentration (parameter); controlled study; denitrification; mineralization; nitrogen loss; oxygen minimum zone; reaction analysis; sediment; oxidation reduction reaction; sea; Ammonium Compounds; Denitrification; Nitrates; Nitrogen; Oceans and Seas; Oxidation-Reduction; Oxygen; Seawater
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149192
作者单位	CAS Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; Function Laboratory of Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
推荐引用方式 GB/T 7714	Tian D.,Wang Y.,Xing J.,et al. Nitrogen loss process in hypoxic seawater based on the culture experiment[J],2020,152.
APA	Tian D.,Wang Y.,Xing J.,Sun Q.,Song J.,&Li X..(2020).Nitrogen loss process in hypoxic seawater based on the culture experiment.Marine Pollution Bulletin,152.
MLA	Tian D.,et al."Nitrogen loss process in hypoxic seawater based on the culture experiment".Marine Pollution Bulletin 152(2020).