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Estimation of field scale leaching rates from chloride mass balance and electromagnetic induction measurements

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Summary

A mass balance model to determine leaching rates from changes in the chloride profile is developed. The model, based on that of Rose et al. (1979), accommodates realistic patterns of change in the shape of the chloride profile and for processes which result in reduced leaching efficiency. Field application of the model found that the average leaching rate calculated using a waterbalance agreed closely with that calculated using the model. Leaching rates calculated from a field study were found to be related to changes in electromagnetic induction measurements (EM-38 instrument). This enabled a field scale leaching rate to be calculated from spatially averaged EM-38 measurements.

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Authors and Affiliations

  1. NSW Agriculture & Fisheries, Deniliquin, Australia

    P. G. Slavich

  2. Institute of Soil Science, Academia Sinica, Nanjing, China

    J. Yang

Authors
  1. P. G. Slavich
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  2. J. Yang
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Slavich, P.G., Yang, J. Estimation of field scale leaching rates from chloride mass balance and electromagnetic induction measurements. Irrig Sci 11, 7–14 (1990). https://doi.org/10.1007/BF00189989

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  • DOI: https://doi.org/10.1007/BF00189989

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