Long term prediction of Cesium 137 in forest soil

2016 Fiscal Year Final Research Report

• Project/Area Number: 25292099
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Forest science
• Research Institution: Forestry and Forest Products Research Institute (2016); The University of Tokyo (2013-2015)
• Principal Investigator: Miura Satoru 国立研究開発法人森林総合研究所, 立地環境研究領域, 領域長 (30353866)
• Co-Investigator(Kenkyū-buntansha): 志知 幸治 国立研究開発法人森林総合研究所, 立地環境研究領域, 主任研究員 (10353715) ; 伊藤 江利子 国立研究開発法人森林総合研究所, 北海道支所, 主任研究員 (20353584) ; 小野 賢二 国立研究開発法人森林総合研究所, 東北支所, 主任研究員 (30353634) ; 青山 道夫 福島大学, 学内共同利用施設等, 特任教授 (80343896)
• Research Collaborator: KANEKO Shinji
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 環境分析 / 放射線 / 土壌圏現象 / 気象学 / 森林科学

Outline of Final Research Achievements

To predict the future distribution of fallout Cs-137 released from Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident, we investigated distribution of global fallout Cs-137 that had deposited to forest soils all over Japan during 1950-60s. Larger depositions of global fallout were observed at the Sea of Japan side along Tohoku to Hokuriku Districts because of large winter precipitation and aerological conditions. We revealed that most part of deposited global fallout remained at the initially deposited place after fifty years by comparing our estimation of radiation inventory with the meteorological observation. We anticipate that fallout Cs-137 from FDNPP will also remain over a long period in the forests.

Free Research Field

農学