The sources and composition of organic matter in sediments of the Jiaozhou Bay: implications for environmental changes on a centennial time scale
文献类型：期刊论文
| 作者 | Kang, Xuming1,2,3; Song, Jinming1,2,3 ; Yuan, Huamao1,2,3; Li, Xuegang1,2,3; Li, Ning1,2,3; Duan, Liqin1,2,3
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| 刊名 | ACTA OCEANOLOGICA SINICA
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| 出版日期 | 2017-11-01 |
| 卷号 | 36期号:11页码:68-78 |
| 关键词 | Organic Matter Sources Anthropogenic Activities Environmental Changes Sediments Jiaozhou Bay |
| DOI | 10.1007/s13131-017-1076-1 |
| 文献子类 | Article |
| 英文摘要 | The Jiaozhou Bay is characterized by heavy eutrophication that is associated with intensive anthropogenic activities. Four core sediments from the Jiaozhou Bay are analyzed using bulk technologies, including sedimentary total organic carbon (TOC), total nitrogen (TN), the stable carbon (delta C-13) and nitrogen (delta N-15) isotopic composition to obtain the comprehensive understanding of the source and composition of sedimentary organic matter and further shed light on the environmental changes of the Jiaozhou Bay on a centennial time scale. Results suggest that the TOC and TN concentrations increase in the upper core, having indicated a probable eutrophication process since the 1920s in the inner bay and the 2000s in the bay mouth. The TOC and TN concentrations outside the bay have also changed since 1916 owing to the variation of terrigenous input. Considering TOC/TN ratio, delta C-13 and delta N-15, it can be concluded there is a mixture of terrigenous and marine organic matter sources in the study area. A simple two end-member (terrigenous and marine) mixing model using delta C-13 indicats that 45%-79% of TOC in the Jiaozhou Bay is from the marine source. The environmental changes of the Jiaozhou Bay are recorded by geochemical proxies, which are influenced by the intensive anthropogenic activities (e.g., extensive use of fertilizers, and discharge of sewage) and climate changes (e.g., rainfall). |
| 语种 | 英语 |
| WOS记录号 | WOS:000414992900009 |
| 版本 | 出版稿 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/143039]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kang, Xuming,Song, Jinming,Yuan, Huamao,et al. The sources and composition of organic matter in sediments of the Jiaozhou Bay: implications for environmental changes on a centennial time scale[J]. ACTA OCEANOLOGICA SINICA,2017,36(11):68-78. |
| APA | Kang, Xuming,Song, Jinming,Yuan, Huamao,Li, Xuegang,Li, Ning,&Duan, Liqin.(2017).The sources and composition of organic matter in sediments of the Jiaozhou Bay: implications for environmental changes on a centennial time scale.ACTA OCEANOLOGICA SINICA,36(11),68-78. |
| MLA | Kang, Xuming,et al."The sources and composition of organic matter in sediments of the Jiaozhou Bay: implications for environmental changes on a centennial time scale".ACTA OCEANOLOGICA SINICA 36.11(2017):68-78. |
入库方式： OAI收割
来源：海洋研究所
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