Nitrogen loss process in hypoxic seawater based on the culture experiment

doi:10.1016/j.marpolbul.2020.110912

	Nitrogen loss process in hypoxic seawater based on the culture experiment
	Tian, Dongfan ; Wang, Yueqi ; Xing, Jianwei; Sun, Qiqi ; Song, Jinming1 ; Li, Xuegang 1
	2020-03-01
Source Publication	MARINE POLLUTION BULLETIN
ISSN	0025-326X
Volume	152 Pages:9
Corresponding Author	Song, Jinming(jmsong@qdio.ac.cn) ; Li, Xuegang(lixuegang@qdio.ac.cn)
Abstract	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.
Keyword	Transformation Dissolved inorganic nitrogen Hypoxic Simulated culture experiment
DOI	10.1016/j.marpolbul.2020.110912
Indexed By	SCI
Language	英语
Funding Project	National Natural Science Foundation of China[91958103] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19060401] ; Science & Technology Basic Resources Investigation Program of China[2017TY100802]
WOS Research Area	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS Subject	Environmental Sciences ; Marine & Freshwater Biology
WOS ID	WOS:000544550000022
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.qdio.ac.cn/handle/337002/167841
Collection	海洋生态与环境科学重点实验室
Corresponding Author	Song, Jinming; Li, Xuegang
Affiliation	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
Corresponding Author Affilication	Key Laboratory of Marine Ecology & Environmental Sciences, CAS
Recommended Citation GB/T 7714	Tian, Dongfan,Wang, Yueqi,Xing, Jianwei,et al. Nitrogen loss process in hypoxic seawater based on the culture experiment[J]. MARINE POLLUTION BULLETIN,2020,152:9.
APA	Tian, Dongfan,Wang, Yueqi,Xing, Jianwei,Sun, Qiqi,Song, Jinming,&Li, Xuegang.(2020).Nitrogen loss process in hypoxic seawater based on the culture experiment.MARINE POLLUTION BULLETIN,152,9.
MLA	Tian, Dongfan,et al."Nitrogen loss process in hypoxic seawater based on the culture experiment".MARINE POLLUTION BULLETIN 152(2020):9.

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