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A Simple Method for Measuring Unsaturated Hydraulic Conductivity
Applied Engineering in Agriculture, 1990A simple method is described which can be used to measure the unsaturated hydraulic conductivity of soils in a short time. The method is based on measurement of water absorption rate under controlled tensions. The results of this method are compared with those evaluated by the Brooks-Corey method, emitter method, and small increments of pressure change
null Z. Samani, null A. Blair
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Comparison of unconfined and confined unsaturated hydraulic conductivity
Geoderma, 2007Abstract The field tension infiltrometer (TI) and the laboratory unit hydraulic gradient (UHG) methods are widely applied to determine the near-saturated soil hydraulic conductivity, K . Comparison between the two methods is relevant given that they differ in the explored soil volume (undetached or detached) and in the flow process (unconfined or ...
BAGARELLO, Vincenzo +2 more
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Comparison of measured and estimated unsaturated hydraulic conductivity
Water Resources Research, 1980Most studies of empirical estimates of unsaturated hydraulic conductivity functions do not account for water which may be relatively immobile under the conditions in which field measurements of conductivity are made. To investigate this, unsaturated hydraulic conductivity data were obtained for three monolith lysimeters, 80 cm in diameter by 135 cm ...
M. E. Parkes, P. A. Waters
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Evaluating the Saturated and Unsaturated Hydraulic Conductivity of Soils
1981A method of calculating the saturated and unsaturated hydraulic conductivities of soils and similar porous materials based on the pore size distribution was shown to predict the experimentally measured values adequately. For coarse-textured soil materials or materials with a relatively narrow range of pore size, only one matching factor is required to ...
A Elzeftawy, K Cartwright
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Microbiotic Crust Influence on Unsaturated Hydraulic Conductivity
Arid Soil Research and Rehabilitation, 1999Microbiotic crusts occur extensively in rangeland soils . Developed by filaments of cyanobacteria and algae , and thalli of lichen and moss entanglement of soil particles , they create a physical discontinuity in the surface profile with greater concen trations of clay , silt , and potentially hydrophobic organic matter.
J. D. Williams +2 more
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On the tensor concept of unsaturated anisotropic hydraulic conductivity
Water Resources Research, 1972Unsaturated hydraulic conductivity can be regarded as a second order tensor, the coefficients of which depend on soil moisture suction or soil moisture content. General equations for the three‐dimensional anisotropic unsaturated flow of water in porous media must involve nine coefficients of the hydraulic conductivity tensor, all of which are, in ...
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On the hydraulic conductivity of unsaturated soils
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1975A. Feodoroff, E. Galula
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Comparison of the hydraulic conductivity between saturated frozen and unsaturated unfrozen soils
International Journal of Heat and Mass Transfer, 2021Xiyan Zhang, Feng Ming
exaly
Determination of the Unsaturated Hydraulic Conductivity of Soil
2020Debao Lu +5 more
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