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Comparing temperature correction models for soil electrical conductivity measurement

There are various factors that affect soil electrical conductivity (EC) measurements, including soil texture, soil water content, cation exchange capacity (CEC) and others. Temperature is an important environmental variable, and different models can be used to correct for its effect on EC measuremen...

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Bibliographic Details
Published in:Precision agriculture 2011-02, Vol.12 (1), p.55-66
Main Authors: Ma, Ruijun, McBratney, Alex, Whelan, Brett, Minasny, Budiman, Short, Michael
Format: Article
Language:English
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Summary:There are various factors that affect soil electrical conductivity (EC) measurements, including soil texture, soil water content, cation exchange capacity (CEC) and others. Temperature is an important environmental variable, and different models can be used to correct for its effect on EC measurements and standardize the measurements to 25°C. It is relevant to analyze these models and to determine whether they are consistent with each other. Some models were wrongly cited. We found that the exponential model of Sheets and Hendrickx as corrected by Corwin and Lesch in 2005 performs the best. The ratio model also performs well between 3°C and 47°C.
ISSN:1385-2256
1573-1618
DOI:10.1007/s11119-009-9156-7