2016 Fiscal Year Final Research Report
Understanding the migration process of radionuclides associated with water and sediment movement
| Project Area | Interdisciplinary Study on Environmental Transfer of Radionuclides from the Fukushima Daiichi Nuclear Power Plant Accident |
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| Project/Area Number |
24110006
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | University of Tsukuba |
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Principal Investigator |
Onda Yuichi 筑波大学, 生命環境系, 教授 (00221862)
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| Co-Investigator(Kenkyū-buntansha) |
辻村 真貴 筑波大学, 生命環境系, 教授 (10273301)
清水 康行 北海道大学, 工学(系)研究科(研究院), 教授 (20261331)
笹 公和 筑波大学, 数理物質系, 准教授 (20312796)
山敷 庸亮 京都大学, 総合生存学館, 教授 (20335201)
近藤 昭彦 千葉大学, 環境リモートセンシング研究センター, 教授 (30201495)
浅沼 順 筑波大学, 生命環境系, 教授 (40293261)
難波 謙二 福島大学, 共生システム理工学類, 教授 (70242162)
福島 武彦 筑波大学, 生命環境系, 教授 (90124354)
末木 啓介 筑波大学, 数理物質系, 教授 (90187609)
脇山 義史 福島大学, 学内共同利用施設等, 講師 (40594792)
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| Co-Investigator(Renkei-kenkyūsha) |
SEKIGUCHI Tomohiro 筑波大学, 生命環境系, 講師 (90400647)
TAKAHASHI Takayuki 福島大学, 共生システム理工学類, 教授 (70197151)
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| Research Collaborator |
Olivier Evrard LSCE, CEA, 研究員
Valentin GOLOSOV モスクワ大学, 教授
Laurent Garcia-Sanchez IRSN, 研究員
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| Project Period (FY) |
2012-06-28 – 2017-03-31
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| Keywords | Cs-137 / 陸域を通じた移行 / 土壌侵食 / 河川を通じた移行 / 湖沼における移行 / 福島第一原子力発電所 / 大気循環 / 巻き上げ |
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| Outline of Final Research Achievements |
1. Among the radioactive substances deposited in the land area, the dissolved 137Cs concentration in the forest stream water showed a double exponential decline trend, also the suspended sediment occupied 97% or more of the total discharge in the 137Cs flux.2. It is clarified that the temporal change of the suspended - dissolved partition coefficient of 137Cs in the Abukuma River has a great relation with land use.3. It is shown that more than 90% of the 137Cs transported to the river as suspended sediment were transported to the sea without sedimentation in the river. A method to simulate the migration of suspended sediment in the coastal area by using the discharge from the river as input has established.
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| Free Research Field |
水文学・地形学
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