| Chromophoric dissolved organic matter in summer in a coastal mariculture region of northern Shandong Peninsula, North Yellow Sea | |
Yan, B; Gao, XL
| |
| 发表期刊 | CONTINENTAL SHELF RESEARCH
 |
| ISSN | 0278-4343 |
| 2019-03-15 | |
| 卷号 | 176页码:19-35 |
| 关键词 | Spectroscopic analysis of seawater Absorption coefficient Fluorescent components Composition and distribution Biogeochemistry Coastal waters |
| 研究领域 | Oceanography |
| DOI | 10.1016/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 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/24974 |
| 专题 | 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 中国科学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 7714 | Yan, 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. |
| APA | Yan, 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. |
| MLA | Yan, 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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