Temporal changes in the transfer of accidentally released Cs from tree crowns to the forest floor after the Fukushima Daiichi Nuclear Power Plant accident
نویسندگان
چکیده
Forests in Fukushima and neighboring prefectures accumulated atmospheric fallout of radioactive materials after the Fukushima Daiichi Nuclear Power Plant accident. We investigated the initial behavior of Cs deposited in coniferous forest plantations. Furthermore, we conducted in-situ measurements of radioactivity in coniferous and broadleaf forest canopies. The results of this study demonstrated that more than 60% of the Fukushima reactor accident–derived radiocesium remained in coniferous forest canopies 5 months after initial deposition. Furthermore, in-situ measurements of radiocesium indicated that the radiocesium absorbed in forest canopies has been moving downward through the canopy to the forest floor.
منابع مشابه
Topographic heterogeneity effect on the accumulation of Fukushima-derived radiocesium on forest floor driven by biologically mediated processes
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