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本文研究了全国９种不同性质的土壤对稀土元素Ｌａ．Ｃｅ．Ｎｄ的吸附与解吸，结果表明，稀土元素在土壤中的吸附符合Ｌａｎｇｍｕｉｒ、Ｆｒｅｕｎｄｌｉｃｈ、Ｔｅｍｋｉｎ等温吸附式，以Ｌａｎｇｍｕｉｒ方程拟合较好。土壤对稀土的吸附容量有明显的地带性，在我国从南到北吸附量增加，且最大吸附量（Ｑｍ）与阳离子交换量（ＣＥＣ）呈显著正相关。稀土元素的解吸符合幂函数式。各种土壤的解吸率不同，但最终均趋于恒定。
In this paper, nine kinds of soils with different properties in China were studied. Ce. Nd adsorption and desorption, the results show that the adsorption of rare earth elements in the soil in line with Langmuir, Freundlich, Temkin isotherm adsorption, Langmuir equation fitting better. The adsorption capacity of REEs to soils is obviously zonal. In China, the adsorption capacity increases from south to north, and the maximum adsorption capacity (Qm) and cation exchange capacity (CEC) have a significant positive correlation. Desorption of rare earth elements in line with the power function. Desorption rates varied from soil to soil, but eventually all tended to be constant.