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

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 dry deposition of water-soluble organic matter: An underestimated carbon source to the coastal waters in North China
	Xie, Lei 2,3; Gao, Xuelu 1,2,3; Liu, Yongliang 2,3; Yang, Bo 1,2,3; Lv, Xiaoqing 2,3; Zhao, Jianmin 1,2,3; Xing, Qianguo 1,2,3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2022-04-20
卷号	818 页码:13
关键词	Carbon cycle Air-sea process Ecological effects Optical properties Fluorescent components
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2021.151772
通讯作者	Gao, Xuelu(xlgao@yic.ac.cn)
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.
WOS关键词	LIGHT-ABSORPTION PROPERTIES ; BROWN CARBON ; MOLECULAR-WEIGHT ; SEA IMPLICATIONS ; HUMIC-LIKE ; AEROSOLS ; PRECIPITATION ; SPECTROSCOPY ; VARIABILITY ; NITROGEN
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000789651100011
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/133337/31240]
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.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.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 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.