| 生物标志化合物对东、西太湖不同湖泊类型的判识 |
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| 引用本文： | 瞿文川,王苏民,张平中,陈践发,何海军.生物标志化合物对东、西太湖不同湖泊类型的判识[J].海洋与湖沼,2000,31(5):530-534. |
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| 作者姓名： | 瞿文川 王苏民 张平中 陈践发 何海军 |
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| 作者单位： | 1. 中国科学院南京地理与湖泊研究所开放实验室,南京,210008
2. 中国科学院兰州地质研究所开放实验室,兰州,730000 |
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| 基金项目： | 中国科学院重大基金资助项目 !KZ951 -B1 -2 0 5KZ951 -A1 -4 0 2号 |
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| 摘 要： | 从生物标志化合物的角度，对东、西太湖沉积物中饱和烃组分进行了分析，通过对其正构烷烃碳数分布形式，主峰碳位置、Ｌ／Ｈ等指标对比，对照西太湖中的主要水生植物蓝藻和东太湖中的主要水生植物的饱和烃的组成特征，同时结合常规指标Ｃ／Ｎ的分析结果，对东、西太湖湖泊类型进行判识－西太湖为藻型湖泊，东太湖为草型湖泊。
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| 关 键 词： | 太湖 生物标志化合物 湖泊类型 藻型湖泊 |
| 修稿时间： | 2000/4/12 0:00:00 |
CLASSIFYING LAKE TYPES USING BIOLOGICAL MARKERS |
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| QU Wen-chuan,WANG Su-min,ZHANG Ping-zhong,CHEN Jian-fa and HE Hai-jun.CLASSIFYING LAKE TYPES USING BIOLOGICAL MARKERS[J].Oceanologia Et Limnologia Sinica,2000,31(5):530-534. |
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| Authors: | QU Wen-chuan WANG Su-min ZHANG Ping-zhong CHEN Jian-fa and HE Hai-jun |
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| Institution: | Nanjing Institute of Geography & Limnology,The Chinese Academy of Sciences,Nanjing,210008;Nanjing Institute of Geography & Limnology,The Chinese Academy of Sciences,Nanjing,210008;Lanzhou Institute of Geology,The Chinese Academy of Sciences,Lanzhou,730000;Lanzhou Institute of Geology,The Chinese Academy of Sciences,Lanzhou,730000;Nanjing Institute of Geography & Limnology,The Chinese Academy of Sciences,Nanjing,210008 |
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| Abstract: | In the present study,alkane based organic markers are used to distinguish between different lake types.Further,the organic geochemical characteristics of the surficial sediments of Taihu Basin are described. Taihu Lake is one of the largest freshwater lakes in China. Its east basin supports a dense population of vascular plants (sediment C/N=13.8) while the west basin is almost free of vascular plants and supports a high phytoplankton (predominantly cyanobacteria) biomass (sediment C/N=7.95).In the eutrophic west basin,the mormal alkanes and fatty acids were primarily short chain molecules (major carbon peaks at C 15 and C 17 ),whilst the mesotrophic east basin sediments contained normal alkanes and fatty acids with longer chain molecules (major carbon peaks at C 24 to C 30 ).Thus,biological marker data provide paleolimnologists with another tool in distinguishing between mesotrophic vascular plant dominated lakes and eutrophic cyanobacteria dominated lakes. |
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| Keywords: | Taihu Lake Biomarkers Typology of Lake |
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