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学科主题: Environmental Sciences; Marine & Freshwater Biology
题名: Composition and sources of organic matter and its solvent extractable components in surface sediments of a bay under serious anthropogenic influences: Daya Bay, China
作者: Gao, XL ; Chen, SY ; Long, AM
通讯作者: sychen@scsio.ac.cn
关键词: bulk analysis ; solvent extractable organic matter ; biomarker ; surface sediment ; Daya Bay
刊名: MARINE POLLUTION BULLETIN
发表日期: 2008
卷: 56, 期:6, 页:1066-1075
收录类别: sci
部门归属: [Gao, Xuelu; Chen, Shaoyong; Long, Aimin] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Trop Marine Environm Dynam, Guangzhou 510301, Guangdong, Peoples R China; [Gao, Xuelu] Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China
项目归属: LED
摘要: Organic matter of nine surface sediments from the Daya Bay was Soxhlet-extracted with a mixture of 2:1 (v/v) dichloromethane-methanol and separated into five fractions: non-aromatic hydrocarbons, aromatic hydrocarbons, ketones, alcohols, and fatty acids and asphaltenes, and analyzed to determine their bulk and biomarker composition. Marine autogenic input appears to be a major source of organic matter. Generally, non-aromatic hydrocarbons are the most dominant fraction of solvent-extractable organic matter (EOM) followed by the other four fractions in decreasing amounts: fatty acids and asphaltenes, ketones, alcohols and aromatic hydrocarbons. On average, both non-aromatic hydrocarbon fraction and fatty acid and asphaltene fraction account for similar to 40% of EOM. The sources of acyclic methyl ketones, alkanols and fatty acids were examined. For n-alkan-2-ones, allochthonous input is a more important source than marine autogenetic input; the reverse is true for n-fatty acids; for n-alkanols, allochthonous and autogenetic inputs seem comparable. Both n-alkan-2-ones and n-fatty acids in the surface sediments of different areas appear to be derived from common sources. (C) 2008 Elsevier Ltd. All rights reserved.
原文出处: 查看原文
WOS记录号: WOS:000257377400016
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5999
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Gao, XL; Chen, SY; Long, AM.Composition and sources of organic matter and its solvent extractable components in surface sediments of a bay under serious anthropogenic influences: Daya Bay, China,MARINE POLLUTION BULLETIN,2008,56(6):1066-1075
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文件名: Composition and sources of organic matter and its solvent extractable components in surface sediments of a bay under serious anthropogenic influences Daya Bay, China .pdf
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