Atmospheric dry deposition of water-soluble organic matter: An underestimated carbon source to the coastal waters in North China
Xie, Lei1,2; Gao, Xuelu1,2,3; Liu, Yongliang1,2; Yang, Bo1,2,3; Lv, Xiaoqing1,2; Zhao, Jianmin1,2,3; Xing, Qianguo1,2,3
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
2022-04-20
Volume818Pages:13
KeywordCarbon cycle Air-sea process Ecological effects Optical properties Fluorescent components
DOI10.1016/j.scitotenv.2021.151772
Corresponding AuthorGao, Xuelu(xlgao@yic.ac.cn)
AbstractWater-soluble organic matter (WSOM) is a ubiquitous group of organic compounds in the atmosphere, which plays an important role in the biogeochemical cycle. To determine the quantity and chemical composition of the dry deposition of WSOM and assess its ecological effects on the coastal waters around the Yangma Island, North Yellow Sea, total suspended particulates (TSP) samples collected at a coastal site for one year from December 2019 to November 2020 were analyzed. The concentration of water-soluble organic carbon (WSOC) and the spectroscopy of chromophoric dissolvable organic matter (CDOM) and fluorescent dissolvable organic matter (FDOM) in the samples showed highly temporal variability with higher values in winter and spring than in summer and autumn. In addition, the correlation analysis revealed that the content of WSOM in the TSP as well as its chemical composition were greatly influenced by the sources and aging processes of aerosols. Moreover, the dry deposition flux of WSOC to the study area was calculated to be 0.79 +/- 0.47 mg C m(-2) d(-1), namely 1.91 x 10(8) g C yr(-1), which could increase the annual average concentration of dissolved organic carbon in surface seawater by 10.2 mu mol L-1, implying that the dry deposition could sustain the secondary production and affect the carbon cycle of the coastal waters. Besides, the complete decomposition of bioavailable WSOC of dry deposition could reduce the annual average concentration of dissolved oxygen in surface seawater by 4.8 mu mol L-1, which could contribute partly to the seawater deoxygenation in the coastal area around the Yangma Island.(C) 2021 Elsevier B.V. All rights reserved.
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences
Indexed BySCI
Language英语
WOS KeywordLIGHT-ABSORPTION PROPERTIES ; BROWN CARBON ; MOLECULAR-WEIGHT ; SEA IMPLICATIONS ; HUMIC-LIKE ; AEROSOLS ; PRECIPITATION ; SPECTROSCOPY ; VARIABILITY ; NITROGEN
WOS Research AreaEnvironmental Sciences & Ecology
WOS IDWOS:000789651100011
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/31241
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_海岸带生物资源高效利用研究与发展中心
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Xie, Lei,Gao, Xuelu,Liu, Yongliang,et al. Atmospheric dry deposition of water-soluble organic matter: An underestimated carbon source to the coastal waters in North China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,818:13.
APA Xie, Lei.,Gao, Xuelu.,Liu, Yongliang.,Yang, Bo.,Lv, Xiaoqing.,...&Xing, Qianguo.(2022).Atmospheric dry deposition of water-soluble organic matter: An underestimated carbon source to the coastal waters in North China.SCIENCE OF THE TOTAL ENVIRONMENT,818,13.
MLA Xie, Lei,et al."Atmospheric dry deposition of water-soluble organic matter: An underestimated carbon source to the coastal waters in North China".SCIENCE OF THE TOTAL ENVIRONMENT 818(2022):13.
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