| 赣南富稀土矿区农田土壤中稀土元素的环境化学特征 |
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| 引用本文： | 高效江,章申,王立军.赣南富稀土矿区农田土壤中稀土元素的环境化学特征[J].生态环境,2001,10(1):11-13. |
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| 作者姓名： | 高效江 章申 王立军 |
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| 作者单位： | 1. 复旦大学环境科学与工程系,
2. 中国科学院地理研究所, |
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| 基金项目： | 国家自然科学基金项目（19392100，49771070）；国家和上海市博士后基金资助项目 |
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| 摘 要： | 选择江西赣县大田稀土矿区，研究了矿区耕作农田土壤中稀土元素的含量、分布及赋存形态特征。结果表明，该区土壤中稀土元素含量明显高于对照区和全国土壤平均含量，且相对富含重稀土元素。土壤中稀土元素的分布模式受成土母岩及元素性质控制，呈现Eu和Ce负异常。稀土元素主要以可交换态和有机结合态（特别是松结有机态）形式存在，具有较高的活性和生物有效性，可能影响生态环境安全。
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| 关 键 词： | 土壤 稀土元素 分布 形态 |
| 文章编号： | 1008-181X（2001）01-0011-03 |
| 修稿时间： | 2000年10月2日 |
Environmental chemistry of
rare earth elements (REEs) in the cultivated soil of a typical REE mine in the southern
Jiangxi |
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| GAO Xiao-jiang,ZHANG Shen,WANG Li-jun.Environmental chemistry of
rare earth elements (REEs) in the cultivated soil of a typical REE mine in the southern
Jiangxi[J].Ecology and Environmnet,2001,10(1):11-13. |
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| Authors: | GAO Xiao-jiang ZHANG Shen WANG Li-jun |
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| Abstract: | Content, distribution and speciation of rare earth elements (REEs) in the cultivated soils from a typical REE mine in the southern Jiangxi, were studied. Results showed that the REE contents of soils in the REE-rich area are obviously higher than that of contrast area and the average value of China soils. The normalized-distribution patterns of soils present the Eu and Ce negative anomalies, which is controlled by the parent rock and the physico-chemical properties of individual REEs. The main forms of REEs in soils are (loosely) bound to organic matters and exchangeable, so REE have higher activity and bioavailability. |
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| Keywords: | rare earth elements (REEs) soil distribution speciation |
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