| 洱海沉积物磷的化学赋存形态研究 |
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| 引用本文： | 王雨春,此里能布,马根连,周怀东.洱海沉积物磷的化学赋存形态研究[J].中国水利水电科学研究院学报,2005,3(2):150-154. |
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| 作者姓名： | 王雨春 此里能布 马根连 周怀东 |
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| 作者单位： | 1. 中国水利水电科学研究院,水环境研究所,北京,100038
2. 云南省水环境监测中心,大理分局,云南,大理,671000 |
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| 基金项目： | 国家自然科学基金项目（40103008）. |
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| 摘 要： | 本文对洱海沉积物磷的含量、空间分布以及沉积剖面上沉积磷的化学赋存形态进行了研究。结果发现，洱海表层（5cm）沉积物中总磷的含量范围为736．40～1602．50mg／kg，平均为964．60mg／kg；北部湖区高于南部，弥苴河是湖泊的主要磷来源；洱海沉积物中各形态磷的含量高低顺序为：钙结合态磷，碎屑态磷，有机态磷，铁结合态磷，吸附态磷，磷形态的剖面变化反映了埋藏作用对沉积磷的强烈改造作用。
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| 关 键 词： | 沉积物 磷 化学形态 洱海 |
| 文章编号： | 1672-3031（2005）02-0150-05 |
| 收稿时间： | 2005-01-20 |
| 修稿时间： | 2005年1月20日 |
Study on chemical characteristics of phosphorus in sediment of Erhai Lake |
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| WANG Yu-chun,CILI Neng-bu,MA Gen-lian and ZHOU Huai-dong.Study on chemical characteristics of phosphorus in sediment of Erhai Lake[J].Journal of China Institute of Water Resources and Hydropower Research,2005,3(2):150-154. |
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| Authors: | WANG Yu-chun CILI Neng-bu MA Gen-lian and ZHOU Huai-dong |
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| Affiliation: | Department of Water Environment , IWHR , Beijing, 100038, China;The Dali Branch of Moni tor Center of Water Quality, Bureau of Hydrology of Yunnan Province , Yunnan Dali, 671000, China;The Dali Branch of Moni tor Center of Water Quality, Bureau of Hydrology of Yunnan Province , Yunnan Dali, 671000, China;Department of Water Environment , IWHR , Beijing, 100038, China |
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| Abstract: | In order to understand the chemical characteristics of phosphorus in the sediment of Erhai Lake, more than 18 sediment cores have been collected, and the content and chemical forms of sedimentary phosphorus have been analyzed. The results of this study showed that the content of sedimentary total phosphorus ranges from 736.40 to 1 602.50mg/kg in surface sediment samples, with an average value of 964.60mg/kg. By applying the sequential extraction method, study on the phosphorus chemical phases, mainly Ca-bound P and organic phosphorus forms, showed that the vertical distribution profile of sedimentary phosphorus is possibly related to early diagenesis processes of sediment in Erhai Lake. |
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| Keywords: | sediment phosphorus chemical forms Erhai Lake |
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