Atmospheric deposition as a direct source of particulate organic carbon in region coastal surface seawater: Evidence from stable carbon and nitrogen isotope analysis
Xie, Lei1,2,3; Gao, Xuelu1,2,3,4; Liu, Yongliang1,2; Yang, Bo5; Yuan, Huamao3,4,6,7; Li, Xuegang3,4,6,7; Song, Jinming3,4,6,7; Zhao, Jianmin1,2,4; Xing, Qianguo1,2,4
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
2023
Volume854Pages:14
KeywordSource characteristics Coastal waters Total suspended particulate Stable carbon and nitrogen isotope Bayesian isotope-mixing models
DOI10.1016/j.scitotenv.2022.158540
Corresponding AuthorGao, Xuelu(xlgao@yic.ac.cn)
AbstractTo assess the source characteristics of coastal aerosols and evaluate the contribution of atmospheric deposition to particulate organic matter in surface seawater, total suspended particulates (TSP) were collected at a shore-based site on the south coast of North Yellow Sea from December 2019 through November 2020. The samples were analyzed for total organic carbon (TOC) and nitrogen (TN) as well as stable carbon and nitrogen isotope (delta C-13 and delta N-15). The results showed that the annual mean concentrations of TOC and TN were 5.36 +/- 4.74 and 5.12 +/- 6.52 mu g m(-3), respectively. delta C-13 fluctuated between -25.1 %o and -19.2 %o with an annual mean of -24.0 +/- 1.0 %o and a significant seasonal variation (P < 0.05) characterizing by the enrichment in winter (-23.4 +/- 0.6 %o) compared to other seasons, which was probably related to the massive coal combustion. Besides, delta N-15 ranged from 7.9 %o to 21.1 %o with an annual mean of 12.5 +/- 2.9 %o and a less pronounced seasonal pattern (P = 0.23). The Bayesian isotope-mixing model showed that, annually, the most important source of TSP was biogenic and biomass source (55.5 +/- 10.8 %), followed by fossil fuel combustion (31.9 +/- 9.0 %), while the marine contribution was less (12.6 +/- 2.3 %). For TOC and TN, the dominated sources were fossil fuel combustion (47.7 +/- 3.4 %) and biogenic and biomass source (57.3 +/- 11.7 %), respectively. Furthermore, the model results indicated that the contribution of atmospheric deposition to suspended particulate matter in surface seawater was 18.0 +/- 11.0 %,17.1 +/- 6.7 % and 10.2 +/- 2.0 % in autumn, spring and summer, respectively. For particulate organic carbon in surface seawater, the contribution of atmospheric deposition was 35.2 +/- 3.5 % in spring, highlighting the huge impact of atmospheric deposition on particulate carbon cycling in coastal waters.
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences
Indexed BySCI
Language英语
WOS KeywordAEROSOLS ; MATTER ; PRODUCTS ; BIOMASS ; EVENTS ; FLUXES ; WATERS ; ORIGIN ; ISLAND ; FLOW
WOS Research AreaEnvironmental Sciences & Ecology
WOS IDWOS:000862764700005
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/31749
Collection中国科学院海岸带环境过程与生态修复重点实验室
中国科学院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心
海岸带生物学与生物资源利用重点实验室
Corresponding AuthorGao, Xuelu
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Zone Environm Proc & Ecol Reme, Yantai 264003, Shandong, Peoples R China
2.Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China
5.Shenzhen Inst Guangdong Ocean Univ, Shenzhen 518114, Guangdong, Peoples R China
6.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China
7.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Ecol & Environm Sci, Qingdao 266237, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Xie, Lei,Gao, Xuelu,Liu, Yongliang,et al. Atmospheric deposition as a direct source of particulate organic carbon in region coastal surface seawater: Evidence from stable carbon and nitrogen isotope analysis[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,854:14.
APA Xie, Lei.,Gao, Xuelu.,Liu, Yongliang.,Yang, Bo.,Yuan, Huamao.,...&Xing, Qianguo.(2023).Atmospheric deposition as a direct source of particulate organic carbon in region coastal surface seawater: Evidence from stable carbon and nitrogen isotope analysis.SCIENCE OF THE TOTAL ENVIRONMENT,854,14.
MLA Xie, Lei,et al."Atmospheric deposition as a direct source of particulate organic carbon in region coastal surface seawater: Evidence from stable carbon and nitrogen isotope analysis".SCIENCE OF THE TOTAL ENVIRONMENT 854(2023):14.
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