Simplified approach for determination of parameters for Kostiakov's infiltration equation

Abstract Knowledge of soil infiltration characteristics is required increasingly for the proper design and efficient management irrigation. Various empirical physically based models have been used several years, but practical use many limited by parameter determination problems, which, in turn, are influenced factors acting at surface within soil, initial boundary conditions, etc. In this study, a simplified approach determining parameters Kostiakov equation was tested validated. The equation's linearized form, using logarithmic transformation field data collected from five sites, employed. results show that cumulative can be described well approach. Its quality also confirmed performance indices like R2 standard error, whose values ranged 0.985 to 0.999 0.020 0.005, respectively, suggesting sufficient purposes, when too scarce apply other, complex methods predict infiltration.