A pore water conductivity sensor

M.A. Hilhorst

    Research output: Contribution to journalArticleAcademicpeer-review

    Abstract

    The electrical permittivity and conductivity of the bulk soil are a function of the permittivity and conductivity of the pore water. For soil water contents higher than 0.10 both functions are equal, facilitating in situ conductivity measurements of the pore water. A novel method is described, based on simultaneous measurements of permittivity and conductivity of the bulk soil from which the conductivity of the pore water can be calculated. A prototype of a pore water conductivity sensor based on this method is presented. Validation results show that the method can be used for a broad range of soils and is valid for water contents between 0.10 and saturation and for the conductivity of the pore water up to 0.3 S m-1.
    Original languageEnglish
    Pages (from-to)6-1925
    JournalSoil Science Society of America Journal
    Volume64
    Publication statusPublished - 2001

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