一种求算土壤流动法中动力学参数的数值微分法

A Numerical Differential Method for Solving the Parameters in Soil Kinetic Study with Displacement Technique

本研究在辨析了土壤流动法中动力学参数的传统求算法的一些缺点之后 ,重新考察了流动法的特征 ,在此基础上提出了一种先通过数值微分——五点三次多项式——求算出反应速率之后 ,再依据反应速率求算动力学参数的方法 ,并运用该法求算了潮土对钾离子的吸附、解吸附动力学参数。

Some shortcoming of the traditional method for solving the parameters in soil kinetic study with displacement techniques was reviewed, and the characteristics of displacement techniques were evaluated. A numerical differential method was brought forward , in which the reaction velocity can been calculated with five dot cubic polynomial. The application of this method demonstrated that it was quite reliable in solving the kinetic parameters of soil potassium adsorption and desorption.