Yan, B; Gao, XL
发表期刊CONTINENTAL SHELF RESEARCH
ISSN0278-4343
2019-03-15
卷号176页码:19-35
关键词Spectroscopic analysis of seawaterAbsorption coefficientFluorescent componentsComposition and distributionBiogeochemistryCoastal waters
研究领域Oceanography
DOI10.1016/j.csr.2019.02.006
产权排序[Yan, Bo; Gao, Xuelu] Chinese Acad Sci, CAS Key Lab Coastal Zone Environm Proc & Ecol Rem, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China; [Yan, Bo; Gao, Xuelu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Yan, Bo; Gao, Xuelu] Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Shandong, Peoples R China
作者部门海岸带信息集成与综合管理实验室
英文摘要Four field cruises were carried out in a mariculture region of the northern Shandong Peninsula from June to September 2017. The concentration of dissolved organic carbon (DOC) together with the absorbance and fluorescence indices of chromophoric dissolved organic matter (CDOM) were measured. The parallel factor analysis model identified four unique fluorescent components consisting of two protein components identified as tyrosine-like Cl and tryptophan-like C2, and two humic-like components C3 and C4. The DOC, CDOM absorption coefficient at 350 nm (a(350)) and protein-like components C1 and C2 exhibited obvious monthly variations particularly. However, the monthly variation of humic-like components C3 and C4 was not significantly different. Spatially, the a(350) and fluorescent components C1-C4 were higher in the nearshore area and decreased towards the offshore area. The humification index, fluorescence index and biological index indicated the predominant autochthonous and microbial sources of CDOM. In the surface water, phytoplankton was assessed as the contributor to 11.6-35.2% of the CDOM, and 9.0-37.4%, 9.1-37.4%, 7.8-18.7% and 11.4-19.9% of the CDOM were identified as C1, C2, C3 and C4, respectively. The river inputs, especially the Xin'an River, have an important impact on DOM dynamics. In the bottom water, microbial aerobic degradation of sinking biogenic particles is an important source of humic-like components, which contributed 9.1%, 18.7% and 48.5% to C3 in July, August and September, and 14.6%, 16.3%, 18.0% and 26.6% to C4 from June to September, respectively.
文章类型Article
资助机构Chinese Academy of SciencesChinese Academy of Sciences [XDA23050303]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [U1606404]; Shandong Provincial Government [U1606404]
收录类别SCI
语种英语
关键词[WOS]EMISSION MATRIX FLUORESCENCE; PARALLEL FACTOR-ANALYSIS; EAST CHINA SEA; FRESH-WATER; OPTICAL-PROPERTIES; CARBON DOC; TEMPERATE ESTUARY; MOLECULAR-SIZE; IN-SITU; ABSORPTION
研究领域[WOS]Oceanography
WOS记录号WOS:000463292200002
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.cnhttp://ir.yic.ac.cn/handle/133337/24974
专题中科院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心
中科院海岸带环境过程与生态修复重点实验室
作者单位1.Chinese Acad Sci, CAS Key Lab Coastal Zone Environm Proc & Ecol Rem, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Shandong, Peoples R China
推荐引用方式
GB/T 7714Yan, B,Gao, XL. Chromophoric dissolved organic matter in summer in a coastal mariculture region of northern Shandong Peninsula, North Yellow Sea[J]. CONTINENTAL SHELF RESEARCH,2019,176:19-35.
APAYan, B,&Gao, XL.(2019).Chromophoric dissolved organic matter in summer in a coastal mariculture region of northern Shandong Peninsula, North Yellow Sea.CONTINENTAL SHELF RESEARCH,176,19-35.
MLAYan, B,et al."Chromophoric dissolved organic matter in summer in a coastal mariculture region of northern Shandong Peninsula, North Yellow Sea".CONTINENTAL SHELF RESEARCH 176(2019):19-35.
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