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Determining Salinity in Field Soils with Soil Resistance Measurements
Author(s) -
Rhoades J. D.,
Ingvalson R. D.
Publication year - 1971
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/sssaj1971.03615995003500010020x
Subject(s) - salinity , soil science , soil water , environmental science , soil salinity , dryland salinity , soil series , soil test , resistance (ecology) , hydrology (agriculture) , soil classification , geology , soil fertility , agronomy , soil biodiversity , geotechnical engineering , oceanography , biology
A field method for assessing soil salinity is presented in which soil resistance measurements are made with an array of four electrodes placed in the immediate surface of a soil and a geophysical Megger‐type earth resistance meter. Measurements were made and the method tested in a series of field plots which were adjusted to various levels of salinity. Results are presented which show an excellent relationship between determined soil conductivities and soil salinities for the soil studied. The potential of this technique for assessing salinity in the field for diagnosis, survey, or management purposes is indicated. The method is simple, rapid, and eliminates the need for taking soil samples and making laboratory analyses for assessing soil salinity.