赣南富稀土矿区农田土壤中稀土元素的环境化学特征OACSCD
Environmental chemistry of rare earth elements (REEs) in the cultivated soil of a typical REE mine in the southern Jiangxi
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。
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 pro…查看全部>>
高效江;章申;王立军
复旦大学环境科学与工程系,中国科学院地理研究所,中国科学院地理研究所,
环境科学
土壤稀土元素分布形态
《土壤与环境》 2001 (1)
11-13,3
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