Soil water infiltration modeling is an important tool to predict soil water redistribution, soil erosion, aquifer recharge and aquifer contamination. This paper presents a model to simulate soil water infiltration (GAML-c), based on the Green-Ampt-Mein-Larson (GAML) model that provides a description of the geometry and advance of the wetting front in the soil. Experimental infiltration tests were performed in Red-Yellow Oxisol (LVA). GAML-c was evaluated in four scenarios: considering hydraulic conductivity (K0) equal to the stable infiltration rate (Tie) and the maximum soil moisture equal to θw (TW); considering the K0 value determined by constant-head permeameter method and the maximum soil moisture equal to θw (KW); considering K0 equal to Tie and the maximum soil moisture equal to θs (TS); and considering the K0 value determined by the constant-head permeameter method and the maximum soil moisture equal to θs (KS). It was verified that for the scenario TW, the GAML-c model was able to simulate the soil water profile and provide satisfactory predictions of infiltration.
hydraulic conductivity; Green-Ampt-Mein-Larson model; Oxisol
