Title: Estimation of Hydraulic Conductivity from Effective Porosity Data for Some Indiana Soils
Abstract: Abstract Hydraulic‐conductivity data are needed to predict how soils will respond to various uses. Saturated hydraulic conductivity ( K s ), however, has been determined for only a few soils. Ahuja et al. proposed a model by which K s can be estimated from effective porosity (φ 3 ), the difference between total porosity and the volumetric soil water content at 33 kPa of suction. If this relationship were known, K s could be predicted for many more soils using available water‐retention information. Previously, K s had been determined in saturated soil horizons by the piezometer method for a set of soils in Indiana. These data were summarized by soil classes, called lithomorphic classes , based on origin of parent material, kind of soil horizon, and soil texture. More recently, bulk‐density and water‐retention measurements were summarized using similar classes. In this study, K s is related to φ e for some Alfisols and Mollisols of Indiana. The relationship is K s = 5.01 × 10 −3 × φ 3.21 e , where K s is in m/s and φ e is in m 3 /m 3 . This compares favorably with the relationships found by Ahuja et al.
Publication Year: 1991
Publication Date: 1991-11-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 68
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