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Journal of Environmental Quality Abstract -

Modeling Radionuclide Transport and Uptake in an Integrated Lysimeter Experiment: I. Model Development


This article in JEQ

  1. Vol. 28 No. 6, p. 1938-1946
    Received: Aug 31, 1998

    * Corresponding author(s): a.butler@ic.ac.uk
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  1. A. P. Butler * and
  2. H. S. Wheater
  1. Dep. of Civil and Environmental Engineering, Imperial College, London SW7 2BU, UK.



A model of a set of integrated lysimeters used to study radionuclide transport and uptake in vegetated soils is described. The experimental facility is conceptualized as a network of linked compartments. Observed water fluxes provide the basis for simulating the movement and distribution of radionuclides throughout the entire experimental system. The model incorporates a simplified representation of upward migration of radionuclides into an unsaturated soil followed by leaching. The transfer of radionuclides from the soil to the crop is represented using a dynamic root uptake submodel. The application of the lysimeter system model to data for the radionuclide 22Na is presented in an accompanying paper.

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