Atmospheric deposition as a direct source of particulate organic carbon in region coastal surface seawater: Evidence from stable carbon and nitrogen isotope analysis

doi:10.1016/j.scitotenv.2022.158540

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Atmospheric deposition as a direct source of particulate organic carbon in region coastal surface seawater: Evidence from stable carbon and nitrogen isotope analysis
	Xie, Lei 5,6,7; Gao, Xuelu 4,5,6,7; Liu, Yongliang 6,7; Yang, Bo 3; Yuan, Huamao 1,2,4,5; Li, Xuegang 1,2,4,5; Song, Jinming 1,2,4,5; Zhao, Jianmin 4,6,7; Xing, Qianguo 4,6,7
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2023
卷号	854 页码:14
关键词	Source characteristics Coastal waters Total suspended particulate Stable carbon and nitrogen isotope Bayesian isotope-mixing models
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2022.158540
通讯作者	Gao, Xuelu(xlgao@yic.ac.cn)
英文摘要	To 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.
WOS关键词	AEROSOLS ; MATTER ; PRODUCTS ; BIOMASS ; EVENTS ; FLUXES ; WATERS ; ORIGIN ; ISLAND ; FLOW
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000862764700005
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/31748]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者	Gao, Xuelu
作者单位	1.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Ecol & Environm Sci, Qingdao 266237, Shandong, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China 3.Shenzhen Inst Guangdong Ocean Univ, Shenzhen 518114, Guangdong, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China 7.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Zone Environm Proc & Ecol Reme, Yantai 264003, Shandong, Peoples R China
推荐引用方式 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.