Abstract

Infiltration continues to occupy the attention of soil physicists and engineers. A theoretical and experimental analysis of the effect of surface sealing on infiltration by Edwards and Larson [1969] showed that raindrops reduced the infiltration rate by as much as 50% for a two‐hour period of infiltration. The effect of raindrops on the surface infiltration rate of soils has been investigated by Seginer and Morin [1970] who used an infiltration model based on the Horton equation. The effect of antecedent moisture on infiltration rate was shown by Powell and Beasley [1967] to be dependent on crop cover, degree of aggregation, and bulk density. The effect of snow cover and type of frost on the soil infiltration rate has been studied by Haupt [1967] on small plots in the Sierra Nevada Mountains in California. The steady infiltration from a shallow, circular, inundated area on the horizontal surface of a semi‐infinite porous medium is treated by a method of linearization by Wooding [1968].

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