| 红枫湖、百花湖沉积物中磷的存在形态研究 |
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| 引用本文： | 王雨春,万国江,王仕禄,李社红,黄荣贵.红枫湖、百花湖沉积物中磷的存在形态研究[J].矿物学报,2000,20(3):273-278. |
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| 作者姓名： | 王雨春 万国江 王仕禄 李社红 黄荣贵 |
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| 作者单位： | 中国科学院地球化学研究所环境地球化学国家重点实验室贵阳 550002 |
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| 基金项目： | 国家自然科学基金(批准号:49903007,49503049)和贵州省科技攻关项目”红枫湖、百花湖污染防治研究”联合资助 |
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| 摘 要： | 湖泊沉积物中磷存在形态，是理解湖泊系统中磷的生物地球化学循环的重要方面，对研究湖泊富营养化等环境问题具有重要意义。本次工作中，采用连续提取化学分析技术，对红枫－百花尖沉积物中磷的存在形态及其剖面变化进行了研究，磷的存在形态包括：吸附态磷（Ｌｏｓｅｌｙ ｓｏｒｂｅｄＰ）、铁结合态磷（Ｆｅ－ｂｏｕｎｄ Ｐ）、钙结合态磷（Ｃａ－ｂｏｕｎｄ Ｐ）、矿物晶格中结合力强的残留态磷（Ｄｅｔｒｉａｌ－Ｐ）和有机态
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| 关 键 词： | 磷形态 湖泊沉积物 百花湖 红枫湖 |
| 修稿时间： | 1999年9月1日 |
FORMS OF PHOSPHORUS IN SEDIMENTS OF LAKE BAIHUA AND LAKE HONGFENG, GUIZHOU |
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| Wang Yuchun\ Wan Guojiang\ Wang Shilu\ Li Shehong\ Huang Ronggui.FORMS OF PHOSPHORUS IN SEDIMENTS OF LAKE BAIHUA AND LAKE HONGFENG, GUIZHOU[J].Acta Mineralogica Sinica,2000,20(3):273-278. |
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| Authors: | Wang Yuchun\ Wan Guojiang\ Wang Shilu\ Li Shehong\ Huang Ronggui |
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| Abstract: | Understanding the geochemistry and burial history of phosphorus (P) in lake sediments is important because of the key role of P in controlling lake productivity. We have examined the distributions of P in sediments from Lake Hongfeng and Lake Baihua in Guizhou Province by the sequential extraction method. The occurrence of total P (Total\|P) and the mineral forms of P (loosely sorbed P, Fe\|bound P, Ca\|bound P, detrial P, and organic P) in sediments were investigated. Significant variations in the forms of P with depth in the sediment cores, especial Total\|P, Fe\|bound P, Ca\|bound P were observed. Fe\|bound P is the dominant form in the sediments of both lakes. The reductive dissolution of amorphous Fe during burial is one of the most important factors affecting the biogeochemical cycling of P in these two lakes. |
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| Keywords: | P form lake sediment sequential extraction method Lake Baihua Lake Hongfeng |
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