IOCAS-IR
Nitrogen in Atmospheric Wet Depositions Over the East Indian Ocean and West Pacific Ocean Spatial Variability, Source Identification, and Potential Influences
Jiang, Shan1; Jin, Jie1; Jiang, Shuo1; Wu, Ying1; Wang, Jianing2; Chen, Ju3; Zhang, Zhenqiu3; Liu, Sumei4,5; Chang, Yan1; Wang, Lingyan4,5; Zhang, Jing1,6
2021-01-25
Source PublicationFRONTIERS IN MARINE SCIENCE
Volume7Pages:16
Corresponding AuthorJiang, Shan(sjiang@sklec.ecnu.edu.cn)
AbstractAtmospheric deposition is the dominant pathway for the loading of exogenous nitrogen (N) to open ocean. Here, rainwater samples were collected from 31 stations in the equatorial East Indian Ocean (EIO) and West Pacific Ocean (WPO) to explore the spatial variability of N species, potential sources, and related ecological influences. Among two oceans, nitrate (NO3-) and ammonium (NH4+) were the main components in the rainwater N inventory. NO3- concentrations varied from 0.19 to 100.5 mu M, whereas NH4+ concentrations ranged from 0.54 to 110.6 mu M. Among all stations, low concentrations of NO3- and NH4+ appeared in the remote ocean, whereas high concentrations were observed at the stations near the Malacca Strait and New Guinea, coupled with an enhancement of non-sea salt major ions, e.g., calcium ions (Ca2+) and sulfate (SO42-), revealing the influence from coastal human activities, such as coal and gasoline combustion. In the remote ocean, delta N-15-NH4+ ranged from -5.7 to-9.3 parts per thousand, whereas it dropped to-15.5 parts per thousand near coasts. A logarithmic decay between delta N-15-NH4+ and NH4+ concentrations in rainwater samples was obtained, suggesting a shift from natural source (seawater emission) in oceanic precipitation events to anthropogenic source (chemical fertilizer volatilization and vehicle exhaust) in coastal rainwaters. delta N-15-NO3- in the remote ocean varied between -1.7 and 0.4 parts per thousand with low levels found in the WPO, likely related to the ascending air flow driven by the Walker Circulation. In coastal oceans, delta N-15-NO3- ranged from 1.5 to 3.5. The linkage between delta N-15-NO3- and NO3- concentrations varied in two oceans, resulting from difference in biological and fossil fuel combustion contributions. Compared with ocean surface water, N in the rainwater was markedly enriched, suggesting that N from atmospheric wet depositions could rapidly enhance the dissolved N availability in ocean surface water. However, the N redundancy according to the Redfield-Brzezinski ratio (N:Si:P = 16:16:1) in the rainwater might benefit from the growth of N-preference phytoplankton species and microbes. As the first study on N concentrations, sources, and stoichiometry balance in rainwater over the equatorial WPO and EIO, the results could be a support to the global N budget estimation and oceanic primary production modeling.
Keywordatmosphere nitrogen Indian Ocean Pacific Ocean precipitation stable isotope
DOI10.3389/fmars.2020.600843
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41876071] ; National Natural Science Foundation of China[41876074] ; National Natural Science Foundation of China[41476065] ; National Natural Science Foundation of China[41706081] ; National Natural Science Foundation of China[41806096] ; Scientific Research Foundation of SKLEC[2017RCDW04]
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEnvironmental Sciences ; Marine & Freshwater Biology
WOS IDWOS:000613332900001
PublisherFRONTIERS MEDIA SA
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/169695
Collection中国科学院海洋研究所
Corresponding AuthorJiang, Shan
Affiliation1.East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
3.Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou, Peoples R China
4.Ocean Univ China, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Qingdao, Peoples R China
5.Ocean Univ China, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao, Peoples R China
6.Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Shan,Jin, Jie,Jiang, Shuo,et al. Nitrogen in Atmospheric Wet Depositions Over the East Indian Ocean and West Pacific Ocean Spatial Variability, Source Identification, and Potential Influences[J]. FRONTIERS IN MARINE SCIENCE,2021,7:16.
APA Jiang, Shan.,Jin, Jie.,Jiang, Shuo.,Wu, Ying.,Wang, Jianing.,...&Zhang, Jing.(2021).Nitrogen in Atmospheric Wet Depositions Over the East Indian Ocean and West Pacific Ocean Spatial Variability, Source Identification, and Potential Influences.FRONTIERS IN MARINE SCIENCE,7,16.
MLA Jiang, Shan,et al."Nitrogen in Atmospheric Wet Depositions Over the East Indian Ocean and West Pacific Ocean Spatial Variability, Source Identification, and Potential Influences".FRONTIERS IN MARINE SCIENCE 7(2021):16.
Files in This Item:
File Name/Size DocType Version Access License
fmars-07-600843.pdf(4859KB)期刊论文出版稿延迟开放CC BY-NC-SAView 2023-7-1后可获取
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Jiang, Shan]'s Articles
[Jin, Jie]'s Articles
[Jiang, Shuo]'s Articles
Baidu academic
Similar articles in Baidu academic
[Jiang, Shan]'s Articles
[Jin, Jie]'s Articles
[Jiang, Shuo]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Jiang, Shan]'s Articles
[Jin, Jie]'s Articles
[Jiang, Shuo]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: fmars-07-600843.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.