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Ecosystem observation and modeling of radioactive cesium in a forest deposited after the nuclear power plant accident

Research Project

Project/Area Number 24248027
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Forest science
Research InstitutionKyoto University (2014-2015)
The University of Tokyo (2012-2013)

Principal Investigator

Ohte Nobuhito  京都大学, 情報学研究科, 教授 (10233199)

Co-Investigator(Kenkyū-buntansha) MURAKAMI Masashi  千葉大学, 理学研究科, 准教授 (50312400)
NSHIDA Kei  山梨大学, 医学工学総合研究部, 准教授 (70293438)
HOTTA Norifumi  筑波大学, 生命環境科学研究科, 准教授 (00323478)
SUGIYAMA Yuko  兵庫県立大学, 環境人間学部, 准教授 (40305694)
OHASHI Mizue  兵庫県立大学, 環境人間学部, 准教授 (30453153)
OSAKA Ken'ichi  滋賀県立大学, 環境科学部, 助教 (30455266)
TANOI Keitaro  東京大学, 農学生命科学研究科, 准教授 (90361576)
ODA Tomoki  東京大学, 農学生命科学研究科, 特任助教 (70724855)
Co-Investigator(Renkei-kenkyūsha) KOBAYASHI Kazuhiko  東京大学, 農学生命科学研究科, 教授 (10354044)
NAKANISHI Tomoko  東京大学, 農学生命科学研究科, 教授 (30124275)
ISHII Nobuyoshi  放射線医学総合研究所, 研究員 (50392212)
Project Period (FY) 2012-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥26,000,000 (Direct Cost: ¥20,000,000、Indirect Cost: ¥6,000,000)
Fiscal Year 2015: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2012: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Keywords福島第一原子力発電所事故 / 放射性セシウム / 森林生態系 / 物質循環 / 浮遊粒子状物質 / 食物網 / 生物濃縮 / 経根吸収 / 系根吸収 / 森林生態 / 生態系保全 / 集水域 / 根系 / 溶存有機物
Outline of Final Research Achievements

Radioactive cesium (137Cs) emitted by the Nuclear Power Plant accident at Fukushima in March 2011 were deposited onto forested areas in the northeastern Japan. To clarify the mechanisms of re-distribution of 137Cs in a forested ecosystem, the 137Cs flow and storage have been monitored in a forest at 50 km from the power plant. Two pathways of 137Cs transport were hypothesized: 1) by moving water via dissolved and colloidal forms, and 2) by dispersion through the food web in the forest-stream continuum. The results indicate that the major form of exported 137Cs is via suspended matter in the streamflow. High water flows by a storm accelerated the transportation of 137Cs from forested catchments. The results also suggested that as the major portion of 137Cs was accumulated in litter and detritus, 137Cs dispersion is quicker through the detritus food chain than through the grazing food chain. Bioaccumlation of 137Cs through the food chain was not detected.

Report

(5 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (39 results)

All 2016 2015 2014 2013 2012 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Acknowledgement Compliant: 5 results,  Open Access: 1 results) Presentation (26 results) (of which Int'l Joint Research: 2 results,  Invited: 5 results) Book (5 results)

  • [Int'l Joint Research] Texas A&M University(米国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] University of Helsinki(Finland)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] 137Cs distributions in soil and trees in forest ecosystems after the radioactive fallout - Comparison study between southern Finland and Fukushima, Japan2016

    • Author(s)
      Jukka Pumpanen, Mizue Ohashi, Izuki Endo, Pertti Hari, Jaana Bäck, Markku Kulmala and Nobuhito Ohte
    • Journal Title

      Journal of Environmental Radioactivity

      Volume: in press Pages: 73-81

    • DOI

      10.1016/j.jenvrad.2016.04.024

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Role of natural organic matter on iodine and 239,240Pu distribution and mobility in environmental samples from the northwestern Fukushima Prefecture, Japan2016

    • Author(s)
      Xu, C., S. Zhang, Y. Sugiyama, N. Ohte, Y.-F. Ho, N. Fujitake, D. I. Kaplan, C. M. Yeager, K. Schwehr, and P. H. Santschi
    • Journal Title

      Journal of Environmental Radioactivity

      Volume: 153 Pages: 156-166

    • DOI

      10.1016/j.jenvrad.2015.12.022

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Estimation of radioactive 137-cesium transportation by litterfall, stemflow and throughfall in the forests of Fukushima2015

    • Author(s)
      Endo, I., N. Ohte, K. Iseda, K. Tanoi, A. Hirose, N. I. Kobayashi, M. Murakami, N. Tokuchi, and M. Ohashi
    • Journal Title

      Journal of Environmental Radioactivity

      Volume: 149 Pages: 176-185

    • DOI

      10.1016/j.jenvrad.2015.07.027

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 原発事故後の福島件北部の森林生態系における放射性セシウム動態のモニタリング.2015

    • Author(s)
      大手信人, 村上正志, 遠藤いず貴, 大橋瑞江, 小田智基, 堀田紀文, 田野井慶太朗, 小林奈通子, 石井伸昌
    • Journal Title

      学術の動向

      Volume: 20 Pages: 16-27

    • Related Report
      2015 Annual Research Report
    • Acknowledgement Compliant
  • [Journal Article] 森林生態系における放射性セシウムの鳥類への移行2015

    • Author(s)
      村上正志、鈴木隆央、大手信人、石井伸昌
    • Journal Title

      日本鳥類学会誌

      Volume: 64

    • NAID

      130005067895

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Biological proliferation of cesium-137 through the detrital food chain in a forest ecosystem in Japan2014

    • Author(s)
      3. Murakami, M., N. Ohte, T. Suzuki, N. Ishii, Y. Igarashi, K. Tanoi
    • Journal Title

      Scientific Report

      Volume: 4 Issue: 1 Pages: 3599-3599

    • DOI

      10.1038/srep03599

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] In growth core 法を用いた樹木細根における放射性Cs吸収量の推定2016

    • Author(s)
      橋本長武 大橋瑞江 遠藤いず貴 小田智基 田野井慶太朗 小林奈通子 廣瀬農 大手信人
    • Organizer
      第127回日本森林学会大会
    • Place of Presentation
      日本大学生物資源科学部(神奈川県・藤沢市)
    • Year and Date
      2016-03-27
    • Related Report
      2015 Annual Research Report
  • [Presentation] 砂防堰堤内における137Csの分布に着目した森林流域からの137Cs流出に関する考察2016

    • Author(s)
      山部翔太郎 小田智基 遠藤いず貴 橋本長武 田野井慶太朗 廣瀬農 大手信人
    • Organizer
      第127回日本森林学会大会
    • Place of Presentation
      日本大学生物資源科学部(神奈川県・藤沢市)
    • Year and Date
      2016-03-27
    • Related Report
      2015 Annual Research Report
  • [Presentation] Consideration of 137Cs discharge from forest watersheds focused on 137Cs deposition in a check dam2016

    • Author(s)
      Shotaro Yamabe, Tomoki Oda, Izuki Endo, Osamu Hashimoto, Keitaro Tanoi, Atsushi Hirose, Nobuhito Ohte
    • Organizer
      The 4th Design Symposium on Conservation of Ecosystem (SEASTAR2000)
    • Place of Presentation
      京都大学(京都府・京都市)
    • Year and Date
      2016-03-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] In growth core 法を用いた樹木細根における放射性Cs吸収量の推定2016

    • Author(s)
      橋本長武 大橋瑞江 遠藤いず貴 小田智基 田野井慶太朗 小林奈通子 廣瀬農 大手信人
    • Organizer
      環境放射能研究会
    • Place of Presentation
      高エネルギー加速器研究機構(茨城県・つくば市)
    • Year and Date
      2016-03-08
    • Related Report
      2015 Annual Research Report
  • [Presentation] 福島における森林生態系内の放射性セシウムの動態2016

    • Author(s)
      大手信人
    • Organizer
      第5回原子力安全規制・福島復興シンポジウム
    • Place of Presentation
      早稲田大学レジリエンス研究所(東京都・新宿区)
    • Year and Date
      2016-03-07
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Investigation of radioactive cesium transportation from forest canopy to floor by litterfall, stemflow and throughfall in northern Fukushima2015

    • Author(s)
      Izuki Endo*, Nobuhito Ohte, Kohei Iseda, Keitaro Tanoi, Atsushi Hirose, Natsuko I. Kobayashi, Masashi Murakami, Naoko Tokuchi, Mizue Ohashi
    • Organizer
      American Geophysical Union, 2015 Fall Meeting
    • Place of Presentation
      Moscone Center(San Francisco, USA)
    • Year and Date
      2015-12-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 森林流域における放射性セシウムの動態2015

    • Author(s)
      堀田紀文・柏原美歌・伊勢田耕平・遠藤いず貴・田野井慶太朗・大手信人
    • Organizer
      第5回分野横断型水文学研究会
    • Place of Presentation
      筑波大学(茨城県・つくば市)
    • Year and Date
      2015-06-11
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] 森林流域からの137Csの流出に与える砂防堰堤の影響2015

    • Author(s)
      小田智基・大手信人・堀田紀文・遠藤いず貴・伊勢田耕平・田野井慶太郎
    • Organizer
      平成27年度 砂防学会研究発表会
    • Place of Presentation
      栃木県総合文化センター(栃木県・宇都宮市)
    • Year and Date
      2015-05-20
    • Related Report
      2015 Annual Research Report
  • [Presentation] Dispersion and export dynamics of 137Cs deposited on the forested ecosystem in Fukushima after the nuclear power plant accident in March 20112015

    • Author(s)
      Nobuhito Ohte, Masashi Murakami, Izuki Endo, Kohei Iseda, Keitaro Tanoi and Nobuyoshi Ishii
    • Organizer
      American Nuclear Society, Methods & Application of Radioanalytical Chemistry
    • Place of Presentation
      Kailua-Kona, Hawaii, USA
    • Year and Date
      2015-04-12 – 2015-04-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] 福島県の森林内でのリターフォールと分解過程が放射性セシウムの動態にもたらす影響2015

    • Author(s)
      遠藤いず貴、大手信人、伊勢田耕平、田野井慶太朗、広瀬農、小林奈通子、橋本長武、大橋瑞江
    • Organizer
      第126回日本森林学会大会
    • Place of Presentation
      北海道大学札幌キャンパス、北海道札幌市
    • Year and Date
      2015-03-26 – 2015-03-29
    • Related Report
      2014 Annual Research Report
  • [Presentation] 福島北部スギ林での樹木根のセシウム吸収把握におけるイングロースコア法の適用2015

    • Author(s)
      橋本長武、大橋瑞江、遠藤いず貴、田野井慶太朗、広瀬農、小林奈通子、大手信人
    • Organizer
      第126回日本森林学会大会
    • Place of Presentation
      北海道大学札幌キャンパス、北海道札幌市
    • Year and Date
      2015-03-26 – 2015-03-29
    • Related Report
      2014 Annual Research Report
  • [Presentation] Ecosystem monitoring on dispersion and export dynamics of 137Cs deposited on the forested area in Fukushima after the nuclear power stations accident in March 20112015

    • Author(s)
      Nobuhito Ohte, Masashi Murakami, Izuki Endo, Kohei Iseda, Mizue Ohashi, Keitaro Tanoi, Nobuyoshi Ishii
    • Organizer
      日本生態学会第62回全国大会
    • Place of Presentation
      鹿児島大学郡元キャンパス、鹿児島県鹿児島市
    • Year and Date
      2015-03-18 – 2015-03-22
    • Related Report
      2014 Annual Research Report
  • [Presentation] 福島第一原発事故により放出された放射性セシウムの森林生態系における生物動態2015

    • Author(s)
      鈴木隆央,宮田能寛,村上正志,石井伸昌,田野井慶太郎, 広瀬農,大手信人
    • Organizer
      日本生態学会第62回全国大会
    • Place of Presentation
      鹿児島大学郡元キャンパス、鹿児島県鹿児島市
    • Year and Date
      2015-03-18 – 2015-03-22
    • Related Report
      2014 Annual Research Report
  • [Presentation] Transporting dynamics of Radioactive Cesium in a forest ecosystem and its discharge processes2014

    • Author(s)
      Kohei Iseda, Nobuhito Ohte, Keitaro Tanoi, Izuki Endo, Tomoki Oda and Hiroyu Kato
    • Organizer
      International Conference on Radioecology and Environmental Radioactivity 2014
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2014-09-07 – 2014-09-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] Ecosystem monitoring on dispersion and export dynamics of 137Cs deposited on the forested area in Fukushima after the nuclear power stations accident in March 20112014

    • Author(s)
      N. Ohte, M. Murakami, I. Endo, K. Iseda, K. Tanoi, N. Ishii
    • Organizer
      International Conference on Radioecology and Environmental Radioactivity 2014
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2014-09-07 – 2014-09-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] Understanding of amount and dynamics of radioactive cesium deposited on trees in Fukushima2014

    • Author(s)
      Izuki Endo, Nobuhito Ohte, Kohei Iseda, Keitaro Tanoi, Atsushi Hirose, Natsuko Kobayashi, Nobuyoshi Ishii, Mizue Ohashi
    • Organizer
      International Conference on Radioecology and Environmental Radioactivity 2014
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2014-09-07 – 2014-09-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] 集水域生態系における放射性セシウムの移動・蓄積の実態把握2014

    • Author(s)
      大手信人
    • Organizer
      日本学術会議公開シンポジウム 福島原発事故による放射能汚染と森林・木材Part II
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 足元から見る福島:森林汚染の現状と将来予測にむけて2014

    • Author(s)
      大手信人
    • Organizer
      文部科学省 原子力基礎基盤戦略研究イニシアティブ 原子力安全規制・福島復興シンポジウム 東日本大震災・福島原発事故から3年 ~原子力安全規制の今後のあり方と福島復興を考える~
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 福島県北部の森林集水域における洪水時の放射性セシウム流出特性2014

    • Author(s)
      伊勢田耕平、大手信人、田野井慶太朗、小林奈通子、遠藤いず貴、小田智基、堀田紀文
    • Organizer
      第125回 日本森林学会
    • Place of Presentation
      大宮
    • Related Report
      2013 Annual Research Report
  • [Presentation] Estimation of radioactive cesium translocation by litterfall, stemflow and throughfall in a forest of Fukushima2014

    • Author(s)
      Izuki Endo, Nobuhito Ohte, Kohei Iseda, Atsushi Hirose, Natsuko Kobayashi, Keitaro Tanoi
    • Organizer
      地球惑星科学連合(JpGU)
    • Place of Presentation
      横浜
    • Related Report
      2013 Annual Research Report
  • [Presentation] 森林域を中心とした流域におけるセシウム137の動態について2013

    • Author(s)
      大手信人、村上正志、伊勢田耕平、遠藤いず貴、鈴木隆央、田野井慶太朗、石井伸昌
    • Organizer
      地球惑星科学連合(JpGU)
    • Place of Presentation
      千葉市
    • Related Report
      2013 Annual Research Report
  • [Presentation] 137Cs dynamics in the forest of Fukushima after the Nuclear Power Plant accident in March 20112013

    • Author(s)
      Izuki Endo, Nobuhito Ohte, Kohei Iseda, Natsuko Kobayashi, Atsushi Hirose, Keitaro Tanoi
    • Organizer
      American Geophysical Union, 2013 Fall meeting
    • Place of Presentation
      San Francisco, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] Diffusion and export dynamics of 137Cs deposited on the forested area in Fukushima after the nuclear power plant accident in March 2011: current status and study plan2013

    • Author(s)
      Izuki Endo, Nobuhito Ohte, Kohei Iseda, Keitaro Tanoi, Masashi Murakami, Nobuyoshi Ishii and Mizue Ohashi
    • Organizer
      US-Japan Joint Seminar on Responses of Catchment Hydrology and Forest Biogeochemistry to Climatic and Environmental Change
    • Place of Presentation
      Honolulu
    • Related Report
      2012 Annual Research Report
  • [Presentation] 森林から流出する放 射性セシウムの動態とその水文 過程の影響2013

    • Author(s)
      伊勢田耕平・大手信人・田野井慶太朗・小田智基・野川憲夫・堀田紀文
    • Organizer
      第124 回日本森林学会大会
    • Place of Presentation
      盛岡
    • Related Report
      2012 Annual Research Report
  • [Presentation] 今、森林にある放射性セシウムは、これからどこへいくのか?2012

    • Author(s)
      大手信人
    • Organizer
      第四回放射能の農畜水産物等への影響についての研究報告会(東大農学部)
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Diffusion and transportation dynamics of 137Cs deposited on the forested area in Fukushima after the nuclear power plant accident in March 20112012

    • Author(s)
      Nobuhito Ohte, Kohei Iseda, Keitaro Tanoi, Masashi Murakami, Nobuyoshi Ishii
    • Organizer
      International Long-Term Ecological Research Network Conference
    • Place of Presentation
      Lisbon
    • Related Report
      2012 Annual Research Report
  • [Book] Agricultural Implications of the Fukushima Nuclear Accident: The First Three Years2016

    • Author(s)
      Ohte, N., M. Murakami, I. Endo, M. Ohashi, K. Iseda, T. Suzuki, T. Oda, N. Hotta, K. Tanoi, N. I. Kobayashi, and N. Ishii
    • Total Pages
      263
    • Publisher
      Springer
    • Related Report
      2015 Annual Research Report
  • [Book] 森林環境2016 特集 震災後5年の森・地域を考える2016

    • Author(s)
      大手信人,村上正志,遠藤いず貴,堀田紀文
    • Total Pages
      194
    • Publisher
      公益財団法人 森林文化協会
    • Related Report
      2015 Annual Research Report
  • [Book] Agricultural Implications of the Fukushima Nuclear Accident 22015

    • Author(s)
      Nobuhito Ohte, Masashi Murakami, Izuki Endo, Mizue Ohashi, Kohei Iseda, Takahiro Suzuki, Tomoki Oda, Norifumi Hotta, Keitaro Tanoi, Natsuko Kobayashi and Nobuyoshi Ishii
    • Publisher
      Springer
    • Related Report
      2014 Annual Research Report
  • [Book] Agricultural Implications of the Fukushima Nuclear Accident2013

    • Author(s)
      Ohte, N., M. Murakami, T. Suzuki, K. Iseda, K. Tanoi, and N. Ishii
    • Total Pages
      214
    • Publisher
      Springer
    • Related Report
      2012 Annual Research Report
  • [Book] Proceedings of the International Symposium onEnvironmental monitoring and dose estimation of residents after accident of TEPCO's Fukushima Daiichi Nuclear Power Stations2012

    • Author(s)
      Ohte, N., M. Murakami, T. Suzuki, K. Iseda, K. Tanoi, and N. Ishii
    • Total Pages
      225
    • Publisher
      Kyoto University Research Reactor Institute
    • Related Report
      2012 Annual Research Report

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Published: 2013-05-15   Modified: 2022-01-28  

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