| 楚科奇海R12a沉积柱状样500年以来生物标记物记录 |
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| 引用本文： | 白有成,陈建芳,李宏亮,金海燕,张海生,王奎,邢磊,赵美训.楚科奇海R12a沉积柱状样500年以来生物标记物记录[J].沉积学报,2010,28(4):768-775. |
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| 作者姓名： | 白有成 陈建芳 李宏亮 金海燕 张海生 王奎 邢磊 赵美训 |
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| 作者单位： | 国家海洋局第二海洋研究所,国家海洋局海洋生态系统与生物地球化学重点实验室,杭州,310012;中国海洋大学海洋化学理论与工程技术教育部重点实验室,山东青岛,266100 |
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| 基金项目： | 国家自然科学基金，中国极地战略研究基金，国家海洋局青年基金，国家海洋局第二海洋研究所基本科研业务费专项 |
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| 摘 要： | 通过多参数生物标志物法对取自中国第二次北极考察的R12a岩心顶部40 cm样品进行了浮游植物和种群结构变化的研究，获得了500 a以来浮游植物初级生产力和种群结构变化信息。结果表明:R12a岩心在过去的500多年来，所记录的海洋初级生产力呈上升趋势，单一藻类的生产力总体上也呈现上升趋势。浮游植物种群结构主要表现为颗石藻相对含量下降，硅藻相对含量上升，甲藻没有明显的波动，这可能与北太平洋水输入决定的楚科奇海营养盐结构及夏季海冰覆盖变化有关。
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| 关 键 词： | 生物标志物 海洋初级生产力 种群结构 楚科奇海 |
| 收稿时间： | 1900-01-01 |
Biomarker Records in Sediment Core of R12a from the Chukchi Sea during the Last 500 Years |
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| BAI You-cheng,CHEN Jian-fang,LI Hong-liang,JIN Hai-yan,ZHANG Hai-sheng,WANG Kui,XING lei,ZHAO Mei-xun.Biomarker Records in Sediment Core of R12a from the Chukchi Sea during the Last 500 Years[J].Acta Sedimentologica Sinica,2010,28(4):768-775. |
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| Authors: | BAI You-cheng CHEN Jian-fang LI Hong-liang JIN Hai-yan ZHANG Hai-sheng WANG Kui XING lei ZHAO Mei-xun |
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| Institution: | Second Institute of Oceanography,SOA, Laboratory of Marine Ecosystem and Biogeochemistry of SOA , Hangzhou 310012 |
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| Abstract: | This paper used multi biomarkers to study the R12a core' s top 40 cm samples' phytoplankton and community sampled during the Second Chinese Arctic expedition from the Chukchi Sea in summer, 2003, and to abtain the information of the phytoplankton production and community change since 500 a.The results indicate the total and individual primary productivity increased over the last 500 a. The phytoplankton community structure mostly show the contributions of coccolithforids decreased, the contribution of diatoms increased, and the relative abundances of dinoflagellates not have obvious changes. This may be related with the Chukchi Sea's nutrients structure which is determined by the waters from the north Pacific Ocean and the summer ice cover change in the Chukchi Sea. |
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