中文摘要：

对不同酸雨条件下黄壤对镉释放的研究发现，吸附态镉释放的过程可以分为快反应和慢反应两个阶段。在以常用动力学方程实验数据进行拟合的基础上，创建了反三角函数方程。结果表明，反三角函数方程对多种酸雨条件下黄壤吸附态镉释放过程的拟合度最佳，此外多项式方程、双常数方程也能较好地描述这一过程。

英文摘要：

According to the batch experiments on behavior of yellow soil releasing cadmium at conditions with different acid rain, it found that the process of releasing absorbed cadmium in the soil consisted of a fast reaction and a slow reaction. In this paper, based on fitting the experimental data with conventional dynamic equations, an inverse circular function equation was developed. It showed that the inverse circular function equation had the best fitting to the process of yellow soil releasing cadmium at conditions with different acid rain. Besides, polynomial equations and two-constant equations can also describe this process properly.