One-Dimensional Steady Infiltration with Water Extraction

Abstract

Exact solutions of the one-dimensional steady infiltration with water extraction are obtained for a particular but realistic form of the soil-water conductivity. The results are compared with numerical solutions for slightly different forms of the soil-water conductivity function, showing the sensitivity of the shape of the profiles on the exact representation of the soil-water conductivity. The exact solutions are an extension of Warrick's (1974) solution for the case where the soil can become saturated.