| Project/Area Number |
15K00563
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental impact assessment
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| Research Institution | Fukushima University |
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Principal Investigator |
Yoschenko Vasyl 福島大学, 環境放射能研究所, 特任教授 (40745569)
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| Co-Investigator(Renkei-kenkyūsha) |
Kivva Sergii 福島大学, 環境放射能研究所, 特任教授 (70745736)
Konoplev Aleksei 福島大学, 環境放射能研究所, 教授 (00745581)
Zheleznyak Mark 福島大学, 環境放射能研究所, 特任教授 (90745712)
Nanba Kenji 福島大学, 共生システム理工学類, 教授 (70242162)
Yoshida Satoshi 独立行政法人放射線医学総合研究所, 福島復興支援本部, 副本部長 (20220642)
Takase Tsugiko 福島大学, 環境放射能研究所, 特任准教授 (10466641)
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| Research Collaborator |
Keitoku Koji
Sato Natsumi
Nagata Hiroko
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Keywords | Fukushima accident / radiocesium / stable cesium / Japanese cedar / forest ecosystems / radiocesium fluxes / root uptake |
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| Outline of Final Research Achievements |
The main aim of our research was prediction of the long-term dynamics of radiocesium in the Fukushima forests for evaluation of the forestry perspectives. To achieve this purpose, we conducted monitoring observations at several experimental sites populated with the typical forestry species. We found that even in the areas were the evacuation orders have been lifted the radiocesium concentrations in wood currently may exceed the Japanese national standards. Using the knowledge on cycling of stable chemical elements in forests, we developed the model predicting how the radiocesium inventories in tree compartments will change in the future. Modelling results show that for the principal forestry species, Japanese cedar, decrease of radiocesium inventory in wood will be rather slow. Also, we analyzed efficiency of decontamination and suggested measures for revitalization of forestry at the radioactive contaminated territories.
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