Abstract
In soil redistribution studies employing 7Be, the radionuclide inventories and their spatial uniformity in soil can be influenced by the crop coverage conditions. A relatively high 7Be interception factor, normalized to the leaf area index (LAI), of 0.61 ± 0.08 (LAI value 0.87 ± 0.06) was determined after 0.4 mm precipitation. After a second 7.2 mm rainfall, the interception factor had a value of 0.36 ± 0.04, for 0.30 ± 0.02 LAI value. Wash-off experiments with deionized water showed that the released 7Be fraction was limited within a range of 29–37 % of the initial concentration of leaf deposit.
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