Distribution and sources of organic matter in surface sediments of Bohai Sea near the Yellow River Estuary, China
文献类型：期刊论文
| 作者 | Liu, DY ; Li, X; Emeis, KC; Wang, YJ; Richard, P
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| 刊名 | ESTUARINE COASTAL AND SHELF SCIENCE
 |
| 出版日期 | 2015-11-05 |
| 卷号 | 165页码:128-136 |
| 关键词 | Carbon isotope Nitrogen isotope Organic matter Biogenic silica Yellow River Estuary |
| ISSN号 | 0272-7714 |
| 产权排序 | [Liu, Dongyan; Li, Xin; Wang, Yujue] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China; [Li, Xin] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Emeis, Kay-Christian] Helmholtz Zentrum Geesthacht, Inst Coastal Res, D-21502 Geesthacht, Germany; [Richard, Pierre] Univ La Rochelle, UMR CNRS 7266, Littoral Environm & Soc, F-17000 La Rochelle, France |
| 通讯作者 | Liu, DY (reprint author), Yantai Inst Coastal Zone Res, CAS,17th Chunhui Rd, Yantai 264003, Peoples R China. dyliu@yic.ac.cn |
| 英文摘要 | Total organic carbon (TOC) and total nitrogen (TN) concentrations and C and N stable isotope compositions in 64 surface sediment samples from the mouth of the Yellow River (YR) and from the Bohai Sea (BS) outline the distribution and sources (terrestrial and marine) of sediment organic matter. Comparatively high TOC (0.5-0.9%) and TN (0.07-0.11%) concentrations in the Central BS correlate with fine-grained sediments that contain high concentrations of algal-derived organic carbon (AOC) and biogenic silica (BSi). Together, they indicate a dominant contribution of autochthonous organic matter from marine primary production. Low TOC (<0.2%) and TN (<0.03%) contents characterize surface sediments in the Bohai Strait and are typically associated with coarse-grained sediments of low AOC and BSi contents. (delta C-13 values (-21 to 22 parts per thousand) are characteristic of marine-derived organic carbon in the Central BS and the Bohai Strait, whereas a significant terrigenous contribution of 40-50% is indicated by lower values (<-23 parts per thousand) near the YR mouth. The spatial pattern of rising (delta C-13 from the YR mouth to offshore areas indicates rapid sedimentation of fluvial suspensions within the vicinity of the river mouth and in Laizhou Bay, so that only approximately 10-20% of YR-derived sediments are transported to and deposited in the Central BS and/or the Bohai Strait. At most sites, delta N-15 values are in the typical range of marine organic matter produced from assimilation of marine nitrate by phytoplankton (5-5.5 parts per thousand), but some relatively high values (6-7.28 parts per thousand) mark the southern area of the Laizhou Bay as a significant sink of anthropogenic nitrogen. (C) 2015 Elsevier Ltd. All rights reserved. |
| 研究领域[WOS] | Marine & Freshwater Biology ; Oceanography |
| 关键词[WOS] | MARINE-SEDIMENTS ; BIOGENIC SILICA ; SOURCE IDENTIFICATION ; CONTINENTAL-SHELF ; CARBON-ISOTOPE ; C/N RATIOS ; NITROGEN ; PRESERVATION ; INDICATORS ; ECOSYSTEM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000367119500015 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/9311]  |
| 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 烟台海岸带研究所_近岸生态与环境实验室 |
| 推荐引用方式 GB/T 7714 | Liu, DY,Li, X,Emeis, KC,et al. Distribution and sources of organic matter in surface sediments of Bohai Sea near the Yellow River Estuary, China[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2015,165:128-136. |
| APA | Liu, DY,Li, X,Emeis, KC,Wang, YJ,&Richard, P.(2015).Distribution and sources of organic matter in surface sediments of Bohai Sea near the Yellow River Estuary, China.ESTUARINE COASTAL AND SHELF SCIENCE,165,128-136. |
| MLA | Liu, DY,et al."Distribution and sources of organic matter in surface sediments of Bohai Sea near the Yellow River Estuary, China".ESTUARINE COASTAL AND SHELF SCIENCE 165(2015):128-136. |
入库方式： OAI收割
来源：烟台海岸带研究所
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