2016 Fiscal Year Final Research Report
Risk evaluation of radio-cesium incorporation into wood of Japanese cedar
| Project/Area Number |
26511010
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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 |
復興農学
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| Research Institution | Forestry and Forest Products Research Institute |
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Principal Investigator |
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| Research Collaborator |
KUBOTA Masahiro 国立研究開発法人森林総合研究所, 林木育種センター関西育種場, 課長
OOKUBO Norihisa 国立研究開発法人森林総合研究所, 林木育種センター関西育種場, 係長
IIDA Yoshisato 国立研究開発法人森林総合研究所, 林木育種センター関西育種場, 係員
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 放射能汚染 / スギ / 木材 / セシウム / カリウム / 養分吸収 / クローン / 黒心材 |
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| Outline of Final Research Achievements |
It is concerned that wood of Japanese cedar (sugi) will be contaminated by radio-cesium after the accident of Fukushima Daiichi nuclear power plant. To estimate the risk of absorption of radio-cesium by sugi in future, we analyzed the concentrations of stable Cs (133-Cs), being a common element in nature, and homogeneous elements such as potassium (K) in sugi plantations. One year old needle could be used for estimating contamination levels of Cs in sugi wood because the stable Cs concentrations in needle and wood showed a positive relationship between them collected from four sugi plantations in Fukushima. We also compared the concentration of stable Cs between black-heart and the red-heart of wood of sugi clones collected from the nursery of Shikoku and found that the black-heart was likely to accumulate larger amount of Cs than the red-heart of sugi.
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| Free Research Field |
森林土壌
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