I would like to suggest an alternative method for the prediction of the unsaturated hydraulic conductivity.
The detail of the theory can be found from the paper from Zhai and Rahardjo (2015) as follows:
Zhai Q, Rahardjo H. (2015) “Estimation of permeability function from the Soil-Water Characteristic Curve” Engineering Geology 199: 148-156.
Attached with excel file which was created based on this paper.
If we key in the fitting parameters and referenced hydraulic conductivity, then permeability function can be generated.
https://www.researchgate.net/publicatio ... y_function
A discussion forum for RETC users. RETC is a program which can be used to analyze the soil water retention and hydraulic conductivity functions of unsaturated soils.
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