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A model of dynamic soil moisture distribution in unsaturated soil is proposed as a simple solution to Klute's equation. This model can represent relationships among soil moisture, depth and elapsed time using a sigmoid function. By substituting this model into Klute's equation (the governing equation of one-dimensional vertical seepage flow in the unsteady state), Klute's equation can be solved easily and the hydraulic conductivity of unsaturated soil can be obtained without suction data.
A model of dynamic soil moisture distribution in unsaturated soil is proposed as a simple solution to Klute's equation. This model can represent relationships among soil moisture, depth and elapsed time using a sigmoid function. By substituting this model into Klute's equation (the governing equation of one-dimensional vertical seepage flow in the unsteady state), Klute's equation can be solved easily and the hydraulic conductivity of unsaturated soil can be obtained without suction data.
Predicting the Hydraulic Conductivity of Unsaturated Soils from a Soil Moisture Profile
Sugii, T. (author)
Fourth International Conference on Unsaturated Soils ; 2006 ; Carefree, Arizona, United States
Unsaturated Soils 2006 ; 157-166
2006-03-17
Conference paper
Electronic Resource
English
Predicting the Hydraulic Conductivity of Unsaturated Soils from a Soil Moisture Profile
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