我国土壤中稀土元素背景值特征

A Survey on the Background Contents of 15 Rare Earth Elements in Chinese Soil.

本文报道了中国土壤15个稀土元素的背景含量、共生组合关系及稀土元素的分异系数和分布模式,讨论了41种土类,35个省市行政区域土壤稀土元素背景含量的差异及其原因.

863 soil samples were collected from 41 kinds of Chinese soils and the contents of 15 rare earth elements in the soil samples were determined. The REE patterns and their fractions in Chinese soils were discussed and their midvalues, arithmetic means, geometric means, standard deviations and the range values with the confidence level of 95% were given. The differences of REE con-tens in 41 kinds of soil and in 34 districts were also discussed.