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Soil Science Society of America Journal Abstract -

Numerical Method for Estimating Simultaneous Flow of Water and Salt in Unsaturated Soils1


This article in SSSAJ

  1. Vol. 33 No. 6, p. 827-832
    Received: Mar 13, 1969
    Accepted: July 31, 1969

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  1. E. Bresler and
  2. R. J. Hanks2



A numerical solution of non-interacting salt flow simultaneously with water in unsaturated soil was devised and programmed. Solutions were obtained for infiltration, redistribution, and evaporation under different wetting and boundary conditions. The effect of diffusion on salt distribution was neglected in the computations. The method was found to give reasonable results for non-interacting solutes. When compared with measured total salt distribution after one wetting and drying cycle, the model gave fairly good results when a source term was added to the computations. The method can be applied to some practical problems, such as leaching of salts and fertilizer movement.

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