Voigt G, Pröhl G, Müller H
GSF-Institut für Strahlenschutz, Neuherberg, Federal Republic of Germany.
Radiat Environ Biophys. 1991;30(4):295-303. doi: 10.1007/BF01210514.
The translocation of cesium from leaves into the edible parts after foliar deposition at different stages of growth has been determined for cereals, potatoes, green beans and carrots in field experiments. For all the plant species investigated a significant seasonality of the cesium translocation was observed. The highest translocation factors were determined after foliar contamination 50 to 60 days before harvest for cereals, and 70 to 90 days and 15 days before harvest for potatoes and green beans, respectively. The variations among the different experiments can be reduced when the translocation is normalized to the yield. This facilitates the application in probabilistic models due to the implicit consideration of the relationship between translocation and yield. The seasonality of the cesium translocation can be described with gaussian functions being consistent with the physiological development of cereals and potatoes. The uncertainty of these approaches is a factor of 3 and 4 for cereals and potatoes, respectively.
在田间试验中，已测定了谷物、土豆、四季豆和胡萝卜在不同生长阶段叶面附着铯后，铯从叶片向可食用部分的转移情况。对于所有被研究的植物物种，均观察到铯转移存在显著的季节性。谷物在收获前50至60天进行叶面污染后，确定了最高转移因子；土豆和四季豆分别在收获前70至90天和15天进行叶面污染后，确定了最高转移因子。当转移量按产量进行归一化处理时，不同实验之间的差异可以减小。由于隐含地考虑了转移与产量之间的关系，这便于应用于概率模型。铯转移的季节性可用高斯函数来描述，该函数与谷物和土豆的生理发育一致。这些方法的不确定性对于谷物和土豆分别为3倍和4倍。
