| Application of biologic silicon in modern sedimentary section to reconstruction of phytoplankton changes in the East China Sea and the Huanghai Sea during last 200 years |
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| 作者姓名： | YANG Qian SONG Xianli SUN Yao HUANG Jiansheng |
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| 作者单位： | Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China;Yellow Sea Fisheries Research Institute, Chinese Fisheries Science Academy, Qingdao 266071, China,Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China;Yellow Sea Fisheries Research Institute, Chinese Fisheries Science Academy, Qingdao 266071, China;Mariculture Institute of Shandong Province, Qingdao 266002, China,Yellow Sea Fisheries Research Institute, Chinese Fisheries Science Academy, Qingdao 266071, China,Yellow Sea Fisheries Research Institute, Chinese Fisheries Science Academy, Qingdao 266071, China;Xiamen University, Xiamen 361005, China |
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| 基金项目： | Foundation item： The National Key Basic Research Program of China under contract No. 2006CB400007; the National Natural Science Foundation of China under contract No. 40876088 |
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| 摘 要： | Biomarkers had been widely used to reconstruct phytoplankton productivity,and this method was applied in the East China Sea and the Huanghai Sea (Yellow Sea).In this study,Biologic Silicon (BSi) was used as productivity proxy to reconstruct productivity change of phytoplankton during last 200 years.The results show that the BSi contents of surficial sediments were in the range of 0.018%-2.516%,averaging 0.726%,and had a similar variation trend with phytoplankton biomass.The vertical distribution profiles revealed that BSi contents were relatively stable,in accordance with the variations of the contemporary phytoplankton standing crop index.According to the stability analysis of BSi in sediments,BSi was not degradaded for the past two hundred years and remained in sediments steadily.Thus,BSi in sediments had the potential to invert paleoproductivity.To conduct further survey,the linear regression equation between BSi contents and phytoplankton biomass index could be used to calculate the phytoplankton productivity by BSi,so that paleoproductivity may be reconstructed during last 200 years.
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| 关 键 词： | 浮游植物生物量 黄海海域 沉积剖面 中国东海 生物硅 植物生产力 应用 线性回归方程 |
| 收稿时间： | 2011/3/15 0:00:00 |
| 修稿时间： | 2011/11/7 0:00:00 |
Application of biologic silicon in modern sedimentary section to reconstruction of phytoplankton changes in the East China Sea and the Huanghai Sea during last 200 years |
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| YANG Qian,SONG Xianli,SUN Yao,HUANG Jiansheng.Application of biologic silicon in modern sedimentary section to reconstruction of phytoplankton changes in the East China Sea and the Huanghai Sea during last 200 years[J].Acta Oceanologica Sinica,2012,31(2):70-77. |
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| Authors: | YANG Qian SONG Xianli SUN Yao and HUANG Jiansheng |
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| Institution: | Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China;Yellow Sea Fisheries Research Institute, Chinese Fisheries Science Academy, Qingdao 266071, China;Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China;Yellow Sea Fisheries Research Institute, Chinese Fisheries Science Academy, Qingdao 266071, China;Mariculture Institute of Shandong Province, Qingdao 266002, China;Yellow Sea Fisheries Research Institute, Chinese Fisheries Science Academy, Qingdao 266071, China;Yellow Sea Fisheries Research Institute, Chinese Fisheries Science Academy, Qingdao 266071, China;Xiamen University, Xiamen 361005, China |
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| Abstract: | Biomarkers had been widely used to reconstruct phytoplankton productivity, and this method was applied in the East China Sea and the Huanghai Sea (Yellow Sea). In this study, Biologic Silicon (BSi) was used as productivity proxy to reconstruct productivity change of phytoplankton during last 200 years. The results show that the BSi contents of surficial sediments were in the range of 0.018%-2.516%, averaging 0.726%, and had a similar variation trend with phytoplankton biomass. The vertical distribution profiles revealed that BSi contents were relatively stable, in accordance with the variations of the contemporary phytoplankton standing crop index. According to the stability analysis of BSi in sediments, BSi was not degradaded for the past two hundred years and remained in sediments steadily. Thus, BSi in sediments had the potential to invert paleoproductivity. To conduct further survey, the linear regression equation between BSi contents and phytoplankton biomass index could be used to calculate the phytoplankton productivity by BSi, so that paleoproductivity may be reconstructed during last 200 years. |
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| Keywords: | typical sea areas of the East China Sea and the Huanghai Sea sediment BSi productivity reconstruction |
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