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Numerical Study of Macropore Impact on Ponded Infiltration in Clay Soils
ponded infiltration macropores and fractures preferential flow single-porosity system dual-permeability system HYDRUS-1D
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2015/1/28
The single-porosity and dual-permeability models in HYDRUS-1D (Šimůnek et al. 1998, 2003) were used to simulate variably-saturated water movement in clay soils with and without macropores. N...
SAND: An Additive for Stabilzation of Swelling Clay Soils
Clay Soils Bentonite Sand Swell Stabilization
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2013/3/11
An experimental program carried out in this study seeks to understand the physical mechanisms of stabilization of an expansive soil by adding an inert material (sand) at various forms; mixing and inte...
Maize-Soybean-Cowpea Sequential Cropping as a Sustainable Crop Production for Acid-Infertile Clay Soils in Indonesia
Cowpea Erosion Maize Mulching Red acid soil Root growth Soybean
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2009/7/29
At mid-elevation terraces in the southern part of Sumatra Island, Indonesia, cassava is widely cultivated as one of the most important cash crops for farmers. However, the prominent cassava cultivatio...
Crack tortuosity in swelling clay soils
swelling soil crack network crack connectedness planar tortuosity spatial tortuosity
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2008/11/26
A relationship between the planar and spatial tortuosities of a statistically isotropic crack network in a clay soil is derived from the fact that connected cracks outline peds and are their boundarie...
Crack width, cross-section area, and volume in swelling clay soils
geometry swelling soils shrinkage cracks
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2008/11/26
A model is presented for prediction of crack network geometry in clay soils. The starting point is the similarity between a crack network in rocks and that in soils, and, hence, principles of multiple...
Stabilization of Clay Soils Against Erosion Loss
Stabilization Clay Soils Against Erosion Loss
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2012/2/15
Accelerated soil erosion from construction sites and the resulting increase in downstream sediment load constitute a significant environmental problem. Laboratory studies indicate that small percentag...
The composition and physical properties of three clay soils were altered by introducing aluminum under an electro-chemical gradient in order to evaluate the role of pH in controlling changes in soil c...