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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/10154

Title: The Hydraulic Properties of Soils: Prediction and Measurement.
Authors: Y. Z. El-Shafei
A. M. Al-Darby
A. A. Shalaby
Issue Date: 1992
Abstract: A multipurpose laboratory experiment (retention and conductivity characteristics) was carried out on long soil columns of two soils; sand and sandy loam, having a particle fractal dimension around 3.5. The resulting pairs of matric suction and water content were well fitted to the Van Genuchten`s retention model. The retention results obtained for the two soils show good agreement between the measured and predicted ones by Gupta and Larson model which is based on particle size distribution, bulk density and organic matter content of soil. A simple equation based on the bubbling suction has been proposed to describe the relationship between unsaturated hydraulic conductivity and matric suction of soil. The equation contains two independent parameters which can be obtained from the soil-water retention filling. Good agreement was obtained by the predicted and measured conductivity. The proposed equation produced better results when it was compared with Jackson and Van Genuchten models.
URI: http://hdl.handle.net/123456789/10154
Appears in Collections:College of Foods And Agricultural Science

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