| Forms of phosphorus and silicon in the natural grain size surface sediments of the southern Bohai Sea |
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| 作者姓名： | 宋金明 罗延馨 吕晓霞 李鹏程 |
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| 作者单位： | MEES,InstituteofOceanology,theChineseAcademyofSciences,Qingdao266071,China |
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| 基金项目： | ProjectNo.4992 5 61 4supportedbyNSFCforoutstandingyoungscientists，projectKZCX1 SW 0108supportedbyChineseA cademyofSciences |
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| 摘 要： | The forms of phosphorus and silicon in the natural grain sizes surface sediments of the southern Bohai Sea were studied. In sediments, the organic matter bound form of phosphorus was the main form of transferable phosphorus and ranged from 0.37μmol/g to 1.57μmol/g, accountingfor 10.7% of the total phosphorus, others were the carbonate bound form, iron-manganeso oxide bound form and ion-exchange able form; the transferable form of phosphorus accounted for 19.2% of the total phosphorus. Silicon‘ s carbonate bound form was predominant over others among its transferable forms, and content ranged from 1.55μmol/g to 8.94μmol/g, accounting for 0.05% of the total silicon; the total amount of transferable silicon forms accounted for only 0.12% of the total silicon. Therefore, 19.2% of the total phosphorus and 0.12 % of the total silicon contained in the surface sediments of the southern Bohai Sea could participate in the biogeochemical cycling.
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| 关 键 词： | 磷 硅 形式 渤海 海洋地球化学 沉积物 化学成分 自然颗粒尺寸 |
| 收稿时间： | 28 May 2001 |
| 修稿时间： | 12 March 2002 |
Forms of phosphorus and silicon in the natural grain size surface sediments of the southern Bohai Sea |
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| Song?Jinming,Luo?Yanxin,Lü?Xiaoxia,Li?Pengcheng.Forms of phosphorus and silicon in the natural grain size surface sediments of the southern Bohai Sea[J].Chinese Journal of Oceanology and Limnology,2003,21(3):286-292. |
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| Authors: | Song Jinming Luo Yanxin Lü Xiaoxia Li Pengcheng |
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| Institution: | (1) MEES, Institute of Oceanology, the Chinese Academy of Sciences, 266071 Qingdao, China |
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| Abstract: | The forms of phosphorus and silicon in the natural grain sizes surface sediments of the southern Bohai Sea were studied. In
sediments, the organic matter bound form of phosphorus was the main form of transferable phosphorus and ranged from 0.37 μmol/g
to 1.57 μmol/g, accounting for 10.7% of the total phosphorus, others were the carbonate bound form, iron-manganese oxide bound
form and ion-exchange able form; the transferable form of phosphorus accounted for 19.2% of the total phosphorus. Silicon’s
carbonate bound form was predominant over others among its transferable forms, and content ranged from 1.55 μmol/g to 8.94
μmol/g, accounting for 0.05% of the total silicon; the total amount of transferable silicon forms accounted for only 0.12%
of the total silicon. Therefore, 19.2% of the total phosphorus and 0.12% of the total silicon contained in the surface sediments
of the southern Bohai Sea could participate in the biogeochemical cycling.
Project No. 49925614 supported by NSFC for outstanding young scientists; project KZCX1-SW-01-08 supported by Chinese Academy
of Sciences. |
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| Keywords: | forms of phosphorus and silicon natural grain sizes surface sediments southern Bohai Sea |
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