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Radioactive cesium absorption and accumulation in the root system of a perennial weeds

Research Project

Project/Area Number 25850012
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Crop production science
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

Yoshino Namiko  国立研究開発法人農業・食品産業技術総合研究機構, 東北農業研究センター, 主任研究員 (20568547)

Research Collaborator MATSUNAMI Hisaya  国立研究開発法人農業・食品産業技術総合研究機構, 東北農業研究センター農業放射線研究センター, 上級研究員 (80504068)
Project Period (FY) 2013-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords放射性セシウム / スギナ / 根系 / 放射性物質
Outline of Final Research Achievements

Equisetum arvense L., a perennial weed, has a rhizomatous root system that is the deepest among the farmland weeds. The present study investigated the accumulation of radioactive materials in the root system of E. arvense by soil layer investigation in the farms of Fukushima Prefecture.
The concentration of radioactive cesium in both the root system of E. arvense and the soil decreased with sampling depth. However, this decrease was more moderate in the root system of E. arvense than in the soil. The concentration of radioactive cesium in the roots of E. arvense was similar to that in the soil at the depth of 40 - 50 cm. Radioactive cesium appeared to accumulate in the root system at a specific depth by absorption from the surrounding soil at the same depth and vertical movement within the root system. However, the radioactive material in E. arvense had little effect on the surrounding soil, because the mass of E. arvense was extremely small.

Report

(5 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (1 results)

All 2017

All Presentation (1 results)

  • [Presentation] スギナ根系に含まれる放射性セシウムの垂直分布2017

    • Author(s)
      好野奈美子、松波寿弥、高橋義彦
    • Organizer
      日本雑草学会
    • Place of Presentation
      シーガイヤ・コンベンションセンター(宮崎県宮崎市)
    • Year and Date
      2017-04-15
    • Related Report
      2016 Annual Research Report

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Published: 2014-07-25   Modified: 2019-07-29  

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