| Distribution and forms of phosphorus in tidal flat sediments of the Yangtze Estuary and coast |
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| 作者姓名： | 高效江 许世远 张念礼 |
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| 基金项目： | This work was supported by National Natural Science Foundation of China (Grant Nos. 49901015
and 49771011)，the State Key Laboratory of Estuary and Coast. |
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| 摘 要： | The distribution and forms of phosphorus (P) were investigated in the tidal flat sediments of the Yangtze Estuary and coast. The total P contents in surface sediments range from 18.0 to 31.4 μmol · g-1 along the southern coast. The spatial and temporal distribution of P in tidal flats is closely related to the location and pollution resources, especially in association with the variation of hydrodynamic conditions. Significant variations in the forms of P in different sites were observed. P bonded with Ca(Ca-P) is the dominant mineral form in all surface sediments, organic P(Org-P) is lower. Most P is of unstable form, suggesting that P has larger potential activity. P accumulation is the main behavior process between water and sediment in the coastal environment of the Yangtze Estuary.
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Distribution and forms of phosphorus in tidal flat sediments of the Yangtze Estuary and coast |
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| GAO Xiaojiang XU Shiyuan& ZHANG Nianl.Distribution and forms of phosphorus in tidal flat sediments of the Yangtze Estuary and coast[J].Science in China(Chemistry),2001(Z1). |
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| Authors: | GAO Xiaojiang XU Shiyuan& ZHANG Nianl |
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| Institution: | e-mail: xjgao@fudan.edu.cn |
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| Abstract: | |
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| Keywords: | phosphorus distribution forms tidal flat sediments Yangtze Estuary |
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