Sources and radiocarbon ages of aerosol organic carbon along the east coast of China and implications for atmospheric fossil carbon contributions to China marginal seas
Yu, Meng; Guo, Zhigang; Wang, Xuchen; Eglinton, Timothy Ian; Yuan, Zineng; Xing, Lei; Zhang, Hailong; Zhao, Meixun
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
2018-04-01
卷号619页码:957-965
关键词AerosolsRadiocarbon (C-14) tracerTotal organic carbonFossil carbonChina marginal seas
研究领域Environmental Sciences
DOI10.1016/j.scitotenv.2017.11.201
产权排序[Yu, Meng; Wang, Xuchen; Xing, Lei; Zhang, Hailong; Zhao, Meixun] Ocean Univ China, Minist Educ, Key Lab Marine Chem Theory & Technol, 238 Songling Rd, Qingdao 266100, Shandong, Peoples R China; [Yu, Meng; Zhao, Meixun] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China; [Guo, Zhigang] Fudan Univ, Shanghai Key Lab Atmospher Particle Pollut & Prev, Dept Environm Sci & Engn, Shanghai, Peoples R China; [Eglinton, Timothy Ian] Swiss Fed Inst Technol, Dept Earth Sci, Inst Geol, CH-8092 Zurich, Switzerland; [Yuan, Zineng] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai, Peoples R China
作者部门海岸带环境过程实验室
英文摘要Aerosol deposition is an important mechanism for the delivery of terrestrial organic carbon (OC) to marginal seas, but OC age characteristics of aerosols are not well constrained and their contributions to sediment OC burial have not been quantified. Total suspended particle samples were collected along the east coast of China at Changdao (CD), Qingdao (QD) and Huaniao Island (HNI), and were analyzed for total organic carbon (TOC) isotopes (C-13 and C-14) in order to bridge this information gap. TOC delta C-13 and Delta C-14 values ranged from -23.6 to -30.5 parts per thousand, and -153 to -687 parts per thousand, respectively, with the latter corresponding to C-14 ages ranging from 1280 to 9260 yr. Estimated contributions of fossil carbon to TOC based on C-14 mass balance approach ranged from 26 to 73%, with strong seasonal variations in fossil carbon observed at CD. Fossil carbon at CD showed the highest proportion (73%) in winter, reflecting anthropogenic emissions and the lowest proportion (26%) in summer, caused by bio-mass contribution (annual ave., 52% +/- 17%). In contrast, the fossil carbon at both QD (57-64%) and HNI (57-67%) dominated throughout the year, reflecting local anthropogenic influences and long-range transport. Mass balance estimates indicate that atmospheric deposition and riverine export accounted for 31% and 69% of fossil carbon inputs to the China marginal seas (CMS) respectively, with fossil carbon burial efficiencies approaching 100% in the CMS. On a global scale, an atmospheric fossil carbon deposition flux of 17.2 Tg C yr(-1) was estimated, equivalent to 40% of the estimated fluvial flux to the ocean, and potentially accounting for 24-41% of fossil OC burial in marine sediments. Therefore, the atmospheric deposition constitutes an important source of fossil carbon to marine sediments, and could play a key role in regional and global scale OC budgets and biogeochemical cycles. (c) 2017 Elsevier B.V. All rights reserved.
文章类型Article
资助机构National Key Research and Development Program of China [2016YFA0601403]; National Natural Science Foundation of China [41520104009, 41521064]; "111" Project [B13030]
收录类别SCI
语种英语
关键词[WOS]ASIAN CONTINENTAL OUTFLOW; SOURCE APPORTIONMENT; YELLOW SEA; BLACK CARBON; ANTHROPOGENIC SOURCES; BACKGROUND SITE; RIVER DELTA; RURAL SITE; BOHAI SEA; MATTER
研究领域[WOS]Environmental Sciences & Ecology
WOS记录号WOS:000424144200097
引用统计被引频次：9[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24382
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室

作者单位1.Ocean Univ China, Minist Educ, Key Lab Marine Chem Theory & Technol, 238 Songling Rd, Qingdao 266100, Shandong, Peoples R China;
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China;
3.Fudan Univ, Shanghai Key Lab Atmospher Particle Pollut & Prev, Dept Environm Sci & Engn, Shanghai, Peoples R China;
4.Swiss Fed Inst Technol, Dept Earth Sci, Inst Geol, CH-8092 Zurich, Switzerland;
5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai, Peoples R China

推荐引用方式
GB/T 7714Yu, Meng,Guo, Zhigang,Wang, Xuchen,et al. Sources and radiocarbon ages of aerosol organic carbon along the east coast of China and implications for atmospheric fossil carbon contributions to China marginal seas[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,619:957-965.
APAYu, Meng.,Guo, Zhigang.,Wang, Xuchen.,Eglinton, Timothy Ian.,Yuan, Zineng.,...&Zhao, Meixun.(2018).Sources and radiocarbon ages of aerosol organic carbon along the east coast of China and implications for atmospheric fossil carbon contributions to China marginal seas.SCIENCE OF THE TOTAL ENVIRONMENT,619,957-965.
MLAYu, Meng,et al."Sources and radiocarbon ages of aerosol organic carbon along the east coast of China and implications for atmospheric fossil carbon contributions to China marginal seas".SCIENCE OF THE TOTAL ENVIRONMENT 619(2018):957-965.


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