Estimating hydraulic conductivity of internal drainage for layered soils in situ

Hydraulic conductivity measurment for subsurface drainage system

Determination of unsaturated hydraulic conductivity by internal drainage assuming a uniform soil water profile

In-situ Field Hydraulic Conductivity

Hydraulic conductivity is commonly estimated from grain size characteristics of unconsolidated sediments. We present an extensive set of air-permeability and grain size measurements from a heterogeneous aquifer. These data are unique in that the hydraulic conductivity measurements are made on undisturbed in-situ sediment and, like the grain size measurements, have a small sample volume size (<1...

Unsaturated Hydraulic Conductivity of Fractal-Textured Soils

Field Determined Variation of the Unsaturated Hydraulic Conductivity Functions Using Simplified Analysis of Internal Drainage Experiments

Experimentally determined values of unsaturated soil hydraulic conductivity are presented for an Alfisol of the county of Piracicaba, S.P., Brazil. Simultaneous measurements of soil water content and pressure head are made along a 125 m transect within an irrigated field during the internal drainage process. Calculations of the soil hydraulic conductivity were made using the instantaneous profi...