Transfer of 7Be, 210Pb and 210Po in a forest canopy of Japanese cedar |
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| Authors: | S. Osaki Y. Tagawa S. Sugihara Y. Maeda Y. Inokura |
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| Affiliation: | (1) Radioisotope Center, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan;(2) Department of Chemistry, Graduate School of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan;(3) Department of Chemistry, Faculty of Science, Kyushu University Graduate School of Sciences, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan;(4) Research Forests, Faculty of Agriculture, Kyushu University, 394 Tsubakuro, Sasaguri, Kasuya, Fukuoka, 811-2415, Japan |
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| Abstract: | The concentrations of 7Be, 210Pb and 210Po of ca. 60 parts of a whole tree of Japanese cedar and of underlying litter and soil samples were determined for studying their transfer in a forest canopy. The results suggest that the mean residence times of 7Be and 210Pb in the forest canopy were ca. 20 and 900 days, respectively, and the dry deposition rate of 7Be on the forest canopy was about a half of the total deposition rate. |
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