| 黄渤海表层沉积物中正构烷烃和甾醇的分布及来源研究 |
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| 引用本文： | 鲁晓红,陈颖军,黄国培,刘东艳,唐建辉,李军,张干.黄渤海表层沉积物中正构烷烃和甾醇的分布及来源研究[J].生态环境,2011(6):1117-1122. |
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| 作者姓名： | 鲁晓红 陈颖军 黄国培 刘东艳 唐建辉 李军 张干 |
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| 作者单位： | [1]中国科学院烟台海岸带研究所海岸带环境过程重点实验室,山东烟台264003 [2]中国科学院研究生院,北京100049 [3]中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州510640 |
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| 基金项目： | 国家自然科学基金项目（41073064）; 中国科学院知识创新工程重要方向项目（KZCX2-YW-QN210）;中国科学院知识创新工程重要方向项目群项目（KZCX2-YW-Q07-04）; 烟台市科技发展计划项目（2009164） |
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| 摘 要： | 在黄海、渤海湾和莱州湾采集64个表层沉积物样品,分析正构烷烃（C15～C33）和甾醇（菜子甾醇、菜油甾醇、谷甾醇和豆甾醇）的质量分数和分子组合特征,探讨其来源,比较物质来源的空间差异。结果表明：（1）黄海表层沉积物中类脂生物标志物主要呈现陆源和海源共同影响的特征,其中北黄海以陆源输入为主,高碳数正构烷烃（〉C24）具有明显的奇碳优势,陆源高等植物的贡献较大;南黄海陆源输入与海洋自身贡献相当;渤海湾与莱州湾接受来自河流的大量陆源物质;（2）来源于陆源高等植物的甾醇（包括菜油甾醇、谷甾醇和豆甾醇）在黄海表层沉积物中的质量分数远小于渤海湾和莱州湾,但指示硅藻来源的菜子甾醇在整个研究区域均具有较高的质量分数。
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| 关 键 词： | 黄海 渤海湾 莱州湾 生物标志物 正构烷烃 甾醇 |
Distribution and sources of lipid biomarkers in surface sediments of the Yellow Sea and Bohai Sea |
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| LU Xiaohong,CHEN Yingjun,HUANG Guopei,LIU Dongyan,TANG Jianhui,LI Jun,ZHANG Gan.Distribution and sources of lipid biomarkers in surface sediments of the Yellow Sea and Bohai Sea[J].Ecology and Environmnet,2011(6):1117-1122. |
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| Authors: | LU Xiaohong CHEN Yingjun HUANG Guopei LIU Dongyan TANG Jianhui LI Jun ZHANG Gan |
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| Institution: | 1.Key Laboratory of Costal Environment Processes,Yantai Institute of Coastal Zone Research,CAS,Yantai 264003,China;2.Graduate University of CAS,Beijing 100049,China;3.State Key Laboratory of Organic Geochemistry,Guangzhou Institute of Geochemistry,CAS,Guangzhou 510640,China |
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| Abstract: | The surface sediments at 64 sites in Yellow Sea and Bohai Sea were collected in 2008,and the concentrations and mo-lecular compositions of lipid biomarkers（n-alkanes and sterols） were analyzed to determine the organic material sources of land and ocean input and comparethe spatial difference among sites.The results showed that,（1） the sediment organic material in the Yellow Sea was derived from both terrestrial plants and marine organism,although the terrestrial input dominated the source of organic ma-terial in northern Yellow Sea;the riverine import of terrestrial material contributed significantly to the Bohai Bay and Laizhou Bay,（2） terrestrial plant-derived sterols（such as campsterol,sitosterol and stigmasterol） displayed lower concentrations in the surface sediments of the Yellow Sea than in the Bohai and Laizhou Bay,while the brassicasterol which were mainly derived from diatom was abundant in all the study areas. |
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| Keywords: | Yellow Sea Bohai Bay Laizhou Bay lipid biomarker n-Alkanes sterols |
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