Predicting the transfer of 137Cs to rice plants by a dynamic compartment model with a consideration of the soil properties

Estimation of137Cs Plant Root Uptake Using Naturally Existing133Cs

“…In addition, Eq. (9) showed that the value of TF-137 Cs was related to a term which was about the square root of ( 133 Cs rice /ex.…”

Evaluating and reducing a model of radiocaesium soil-plant uptake

“…They found broad agreement with model predictions for grassy vegetation, but noted that the model performed poorly for rice. Subsequent to this, Keum et al (2007) successfully used the Absalom2001 framework as the basis for an extended model for radiocaesium uptake by rice. More recently, Absalom2001 has been incorporated within the ARGOS nuclear emergency decision support system which is maintained by an international consortium of 10 countries (www.pdc.dk/argos).…”

The transfer of radiocesium from soil to plants: Mechanisms, data, and perspectives for potential countermeasures in Japan

“…Exactly for these reasons, TFs of 137 Cs relate only poorly to single soil properties such as percent clay, pH, or organic matter. For example, increased percent clay in soil does not have a clear effect on 137 Cs uptake in crops (Smolders et al 1997; Keum et al 2007), because it increases the 137 Cs binding potential, but conversely, it also increases K retention which stimulates 137 Cs uptake by roots. The TFs of 137 Cs can, however, be modeled from 3 input parameters: percent clay, the exchangeable K in soil, and the time after contamination (Absalom et al 1999).…”