Estimating Water Content of Soils from Electrical Resistivity

    Volume 16, Issue 3 (September 1993)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Page Count: 7


    Kalinski, RJ
    Assistant project engineer, Woodward-Clyde Federal Services, Omaha, NE

    Kelly, WE
    Professor and department chair, University of Nebraska-Lincoln, Lincoln, NE

    Abstract

    Electrical resistivity has been demonstrated to be an effective predictor of various soil hydraulic properties including water content, degree of saturation, and hydraulic conductivity. Standardized laboratory procedures for measuring soil electrical resistivity are based on the use of the Miller soil box for determining soil corrosive potential from soil resistivity. However, these procedures and the Miller soil box do not allow for the flexibility in measurements necessary to develop explicit relationships between soil resistivity and hydraulic properties. As an alternative to the use of the Miller soil box, circular four-probe resistivity cells provide a measurement method that can be used to develop explicit relationships between soil resistivity and hydraulic parameters. For a test experiment, relationships were developed where volumetric water content could be estimated from soil resistivity with a standard error of 0.009.


    Paper ID: GTJ10053J

    DOI: 10.1520/GTJ10053J

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    Author
    Title Estimating Water Content of Soils from Electrical Resistivity
    Symposium , 0000-00-00
    Committee D18