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Measurement of Apparent Electrical Conductivity of Soils by an Electromagnetic Induction Probe to Aid Salinity Surveys
Author(s) -
Jong E.,
Ballantyne A. K.,
Cameron D. R.,
Read D. W. L.
Publication year - 1979
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1979.03615995004300040040x
Subject(s) - electrical resistivity and conductivity , salinity , transect , electromagnetic induction , soil science , soil water , conductivity , soil salinity , soil test , geology , materials science , mineralogy , environmental science , chemistry , electrical engineering , oceanography , engineering , electromagnetic coil
A noncontacting soil resistivity probe, based on electromagnetic induction, was used to measure soil salinity. Good correlations were obtained between the apparent bulk soil conductivity measured by the instrument and the electrical conductivity of saturated paste extracts or the bulk electrical conductivity measured by the Wenner four‐probe method. The electromagnetic induction technique provided less detailed information on salinity changes with depth than the other methods, but was faster and can provide a continuous record of salinity changes along a transect.