Predicted and observed finger diameters in field soils

C.J. Ritsema, T.S. Steenhuis, J.Y. Parlange, L.W. Dekker

    Research output: Contribution to journalArticleAcademicpeer-review

    24 Citations (Scopus)

    Abstract

    Wetting front instability resulting in fingered flow has been found in both wettable and non-wettable soils. Laboratory research has resulted in a number of expressions for finger diameter. The applicability of one of these equations was tested for three soils where detailed soil moisture contents were measured. Information needed for finger prediction, such as the main wetting and drying loops of the soil moisture characteristic curves, were measured as well. Predicted finger diameters for the two sandy soils agreed well with the observed moisture patterns, whereas for the loess soil the wetting front was flat as predicted. The finger diameters in dry soil were based on the main wetting loop and in the wet soils they were dependent on the main drying loop.
    Original languageEnglish
    Pages (from-to)185-196
    JournalGeoderma
    Volume70
    Issue number2/4
    DOIs
    Publication statusPublished - 1996

    Fingerprint

    wetting front
    soil
    wetting
    drying
    loess soils
    soil moisture
    sandy soils
    soil water content
    sandy soil
    soil water
    loess
    moisture content
    prediction
    moisture

    Keywords

    • dehydration
    • hydration
    • hydraulic conductivity
    • hygroscopicity
    • infiltration
    • seepage
    • soil

    Cite this

    Ritsema, C.J. ; Steenhuis, T.S. ; Parlange, J.Y. ; Dekker, L.W. / Predicted and observed finger diameters in field soils. In: Geoderma. 1996 ; Vol. 70, No. 2/4. pp. 185-196.
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    abstract = "Wetting front instability resulting in fingered flow has been found in both wettable and non-wettable soils. Laboratory research has resulted in a number of expressions for finger diameter. The applicability of one of these equations was tested for three soils where detailed soil moisture contents were measured. Information needed for finger prediction, such as the main wetting and drying loops of the soil moisture characteristic curves, were measured as well. Predicted finger diameters for the two sandy soils agreed well with the observed moisture patterns, whereas for the loess soil the wetting front was flat as predicted. The finger diameters in dry soil were based on the main wetting loop and in the wet soils they were dependent on the main drying loop.",
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    author = "C.J. Ritsema and T.S. Steenhuis and J.Y. Parlange and L.W. Dekker",
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    Predicted and observed finger diameters in field soils. / Ritsema, C.J.; Steenhuis, T.S.; Parlange, J.Y.; Dekker, L.W.

    In: Geoderma, Vol. 70, No. 2/4, 1996, p. 185-196.

    Research output: Contribution to journalArticleAcademicpeer-review

    TY - JOUR

    T1 - Predicted and observed finger diameters in field soils

    AU - Ritsema, C.J.

    AU - Steenhuis, T.S.

    AU - Parlange, J.Y.

    AU - Dekker, L.W.

    PY - 1996

    Y1 - 1996

    N2 - Wetting front instability resulting in fingered flow has been found in both wettable and non-wettable soils. Laboratory research has resulted in a number of expressions for finger diameter. The applicability of one of these equations was tested for three soils where detailed soil moisture contents were measured. Information needed for finger prediction, such as the main wetting and drying loops of the soil moisture characteristic curves, were measured as well. Predicted finger diameters for the two sandy soils agreed well with the observed moisture patterns, whereas for the loess soil the wetting front was flat as predicted. The finger diameters in dry soil were based on the main wetting loop and in the wet soils they were dependent on the main drying loop.

    AB - Wetting front instability resulting in fingered flow has been found in both wettable and non-wettable soils. Laboratory research has resulted in a number of expressions for finger diameter. The applicability of one of these equations was tested for three soils where detailed soil moisture contents were measured. Information needed for finger prediction, such as the main wetting and drying loops of the soil moisture characteristic curves, were measured as well. Predicted finger diameters for the two sandy soils agreed well with the observed moisture patterns, whereas for the loess soil the wetting front was flat as predicted. The finger diameters in dry soil were based on the main wetting loop and in the wet soils they were dependent on the main drying loop.

    KW - dehydratie

    KW - hydratatie

    KW - hydraulisch geleidingsvermogen

    KW - hygroscopiciteit

    KW - infiltratie

    KW - kwel

    KW - bodem

    KW - dehydration

    KW - hydration

    KW - hydraulic conductivity

    KW - hygroscopicity

    KW - infiltration

    KW - seepage

    KW - soil

    U2 - 10.1016/0016-7061(95)00080-1

    DO - 10.1016/0016-7061(95)00080-1

    M3 - Article

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    JO - Geoderma

    JF - Geoderma

    SN - 0016-7061

    IS - 2/4

    ER -