Five two-parameter (sorptivity, S, and saturated hydraulic conductivity, K_s) vertical one-dimensional infiltration equations are compared quantitatively over the whole time range from zero to very long times. These equations are Green-Ampt (GA), Talsma-Parlange (TP), Brutsaert (B), Swartzendruber (SW), and Valiantzas (V). The results showed that the cumulative infiltration i (t) predictions of equations B, SW, and V are between the two limit soils characterized by GA and TP equations. Compared with the TP equation, the equations of B, SW, and V showed a maximum discrepancy of 3.8%, 5.6%, and 9.88%, respectively, while compared with the GA equation showed a maximum discrepancy of 14.8%, 11.4%, and 7.8%, respectively. However, the differences among SW, B, and V are lower. The study of cumulative infiltration data of four porous media showed that the S/K_s ratio may be a criterion for the appropriate infiltration equation selection. The S/K_s values for the porous media studied ranged from 2.6 to 136 min^0.5. The V equation showed very good prediction of the results in the case of low S/K_s values (coarse-textured soils), while the SW equation in the case of high values (fine-textured soils). Also, the linear form of the V equation was applied for direct estimation of the two parameters, S and K_s, using vertical infiltration data of four porous media with relatively good results (0.980 < R² < 0.999).

在从零到很长时间的整个时间范围内，对五个两参数（吸附率S和饱和导水率K _s）垂直一维渗透方程进行了定量比较。这些方程式是Green-Ampt（GA），Talsma-Parlange（TP），Brutsaert（B），Swartzendruber（SW）和Valiantzas（V）。结果表明，累积渗透我（吨）方程B，SW和V的预测是在以GA和TP方程为特征的两个极限土之间。与TP方程相比，B，SW和V方程的最大差异分别为3.8％，5.6％和9.88％，而与GA方程相比，最大差异为14.8％，11.4％和分别为7.8％。但是，SW，B和V之间的差异较小。对四种多孔介质的累积入渗数据的研究表明，S / K _s比可能是选择适当入渗方程的标准。所研究的多孔介质的S / K _s值为2.6至136 min ^0.5。在S / K _s值低的情况下（粗糙结构的土壤），V方程对结果的预测非常好，而在S / K _s值低的情况下（精细结构的土壤），SW方程显示很好的结果。同样，使用四个多孔介质的垂直渗透数据，将V方程的线性形式用于两个参数S和K _s的直接估计，结果相对较好（0.980 <  R ²  <0.999）。