@misc{oai:repo.qst.go.jp:00062787,
 author = {Ishikawa, Nao and Uchida, Shigeo and Tagami, Keiko and 石川 奈緒 and 内田 滋夫 and 田上 恵子},
 month = {Oct},
 note = {One of the key parameters required in modeling the behavior of radionuclides in soils is the soil-soil solution distribution coefficient (Kd). In order to provide a more practical model, it is needed to obtain many Kd data for each important radionuclide in various soil groups, and to determine soil properties which influence variation in Kd values using the collected data. In this study, 142 of agricultural soil samples were collected throughout Japan, and Kd data were determined for radionuclides such as selenium-75 and cesium-137. Then, the relationships between Kd values for each radionuclide and soil properties were discussed using statistical analysis.
  63 samples were from paddy fields and 79 samples were from upland fields. Soil groups of these samples were andosol (n = 35), cambisol (n = 25), fluvisol (n = 77). Soil properties such as pH, electrical conductivity, activated aluminum content (Alo), and activated iron content (Feo) were measured. Kd values were determined by batch sorption test. 
     Relatively high correlations between Se-Kd values and Alo and Feo with spearman rank correlation coefficients (Rc) of 0.57 (p < 0.01) and 0.62 (p < 0.01), respectively were observed in upland soil samples. However, there was no correlation between Se-Kd values and Alo and Feo in paddy soil samples. Since upland soil samples including 29 Andosol samples which contain higher amount of Alo and Feo than other soil groups, good correlations between Se-Kd values and Alo and Feo was observed in upland soil samples. Further discussion about relationships between Kd values for each radionuclide and soil properties will be presented in the presentation., The 16th Pacific Basin Nuclear Conference (16PBNC)},
 title = {Soil-soil solution distribution coefficients for radionuclides in Japanese agricultural soils},
 year = {2008}
}