Atmospheric dry deposition of water-soluble organic matter: An underestimated carbon source to the coastal waters in North China

doi:10.1016/j.scitotenv.2021.151772

	Atmospheric dry deposition of water-soluble organic matter: An underestimated carbon source to the coastal waters in North China
	Xie, Lei 1,2; Gao, Xuelu1,2,3 ; Liu, Yongliang 1,2; Yang, Bo 1,2,3; Lv, Xiaoqing 1,2; Zhao, Jianmin1,2,3 ; Xing, Qianguo1,2,3
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
	2022-04-20
卷号	818 页码:13
关键词	Carbon cycle Air-sea process Ecological effects Optical properties Fluorescent components
DOI	10.1016/j.scitotenv.2021.151772
通讯作者	Gao, Xuelu([email protected])
英文摘要	Water-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.
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences
收录类别	SCI
语种	英语
关键词[WOS]	LIGHT-ABSORPTION PROPERTIES ; BROWN CARBON ; MOLECULAR-WEIGHT ; SEA IMPLICATIONS ; HUMIC-LIKE ; AEROSOLS ; PRECIPITATION ; SPECTROSCOPY ; VARIABILITY ; NITROGEN
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:000789651100011
引用统计	被引频次：12[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.cn/handle/133337/31241
专题	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
通讯作者	Gao, Xuelu
作者单位	1.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
推荐引用方式 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.