| 东海沉积物中磷的存在形态及其环境意义 |
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| 引用本文： | 郑丽波,叶瑛,周怀阳.东海沉积物中磷的存在形态及其环境意义[J].地理学报(英文版),2004,14(1):113-120. |
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| 作者姓名： | 郑丽波 叶瑛 周怀阳 |
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| 作者单位： | [1]DepartmentofGeography,EastChinaNormalUniversity,Shanghai200062,China [2]DepartmentofEarthScience,ZhejiangUniversity,Hangzhou310027,China [3]SecondInstituteofOceanography,SOA,Hangzhou310012,China |
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| 基金项目： | The cooperative project between Government of China and Japan |
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| 摘 要： | By means of SEDEX, ASPILA and XRF, depth-dependent changes of different phosphorus forms in sediment cores from specific areas of the offshore Changjiang Estuary (Yangtze Estuary) in 1998 were analyzed. Results show that contents of total phosphorus (TP), organic-phosphorus (OP) and iron-phosphorus (Fe-P) decreased down-core, while those of absorbed-phosphorus (Ad-P) andcalcium-phosphorus (Ca-P) increased. The distribution tendency of detritus-phosphorus (De-P) is not obvious. Results also show that TP, Fe-P and OP contents at Meso station of the Changjiang Estuary and Hangzhou Bay are higher than that of the other stations. This suggests that the pollutants carried by the Changjiang and the Qiantang rivers from inland have affected the natural environment inoffshore area. TP, Fe-P and OP contents of each station become higher from bottom to top, indicating the amount of the terrestrial pollutants carried by the two rivers has been enhanced since the last 30-50 years. Ad-P, Ca-P, Fe-P and OP are all active phosphorus in sediments, and their re-cycling in sediment is closely related to each other.
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| 关 键 词： | 磷 沉积物 环境意义 形态 东海 |
| 收稿时间： | 2003-05-26 |
Phosphorus forms in sediments of the East China Sea and its environmental significance |
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| Zheng,Libo,Ye,Ying,Zhou,Huaiyang.Phosphorus forms in sediments of the East China Sea and its environmental significance[J].Journal of Geographical Sciences,2004,14(1):113-120. |
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| Authors: | Zheng Libo Ye Ying Zhou Huaiyang |
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| Institution: | Department of Geography, East China Normal University, Shanghai 200062, China;Department of Earth Science, Zhejiang University, Hangzhou 310027, China;Second Institute of Oceanography, SOA, Hangzhou 310012, China |
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| Abstract: | By means of SEDEX, ASPILA and XRF, depth-dependent changes of different phosphorus forms in sediment cores from specific areas of the offshore Changjiang Estuary (Yangtze Estuary) in 1998 were analyzed. Results show that contents of total phosphorus (TP), organic-phosphorus (OP) and iron-phosphorus (Fe-P) decreased down-core, while those of absorbed-phosphorus (Ad-P) and calcium-phosphorus (Ca-P) increased. The distribution tendency of detritus-phosphorus (De-P) is not obvious. Results also show that TP, Fe-P and OP contents at Meso station of the Changjiang Estuary and Hangzhou Bay are higher than that of the other stations. This suggests that the pollutants carried by the Changjiang and the Qiantang rivers from inland have affected the natural environment in offshore area. TP, Fe-P and OP contents of each station become higher from bottom to top, indicating the amount of the terrestrial pollutants carried by the two rivers has been enhanced since the last 30-50 years. Ad-P, Ca-P, Fe-P and OP are all active phosphorus in sediments, and their re-cycling in sediment is closely related to each other. |
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| Keywords: | Changjiang Estuary East China Sea sediment column phosphorous forms phosphorous distribution environmental significance |
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