本文通过静态实验和动态实验 ,研究了85Sr、13 4Cs和60 Co在黄土中的吸附和迁移行为以及核素浓度、p H和温度对分配系数的影响。静态实验结果表明 ,16个样品测定的85Sr、13 4Cs和60 Co的分配系数的均值分别为 82、7.4× 10 3 和 5.4× 10 3 m L/g;p H值的变化对三种核素的分配系数有较大影响。动态实验结果表明 ,三种核素的绝大部分滞留在土柱中 ,只有少部分从土柱中流出来 ;三种核素在土柱中的迁移速度从快到慢的顺序为85Sr>13 4Cs≈60 Co In this paper, through static experiments and dynamic experiments, the adsorption and migration behaviors of 85Sr, 134Cs and 60Co in loess and the effects of nuclide concentration, p H and temperature on the partition coefficient were studied. The static experimental results show that the distribution coefficients of 85Sr, 13 4Cs and 60 Co measured by 16 samples are 82, 7.4 × 10 3 and 5.4 × 10 3 m L / g, respectively. The distribution coefficient has a greater impact. The dynamic experimental results show that most of the three nuclides remain in the soil column, only a small part of them flow out of the soil column. The order of the migration speed of the three nuclides in the soil column from high to low is 85Sr> 13 4Cs ≈ 60 Co