福島第一原発事故後の丘陵地林縁部法面における放射性物質移動防止試験  [in Japanese] Control test of radioactive transport on the cut slope at the edge of hill forest after the Fukuashima Daiichi nuclear disaster  [in Japanese]

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Abstract

福島県川俣町山木屋地区の丘陵地落葉広葉樹林林縁法面において,放射性物質の移動防止試験を2012 年6 月~11 月に行った。植生とリターを取り除き,浸食防止工法等を組み合わせた6 つの除染処理区を設定した。処理区では,当初,放射性物質が次第に減少したが,植生の発達によって減少が止まった。4 か月半の間に,処理区面積あたり1.5-8.6 kBq/m<SUP>2</SUP> の放射性セシウムの下方移動が観察された。放射性物質はリターと土砂の形で大部分が下方移動し,その阻止には柵と不織布シートの組み合わせが効果的だった。

Control test of radioactive transport was done from June to November in 2012 on the cut slope at the edge of deciduous broadleaf hill forest in Yamakiya District of Kawamata Town, Fukushima Prefecture. After removing vegetation and litter, 6 decontamination and erosion control treatment plots were set. Though radioactive substance as decreased in the treatment plots at first, it became stopped later due to the development of vegetation. The downward movement of 1.5-8.6 kBq/m<SUP>2</SUP> of radiocesium was observed in the test plots during 4 and half months. Almost radioactive substance moved downwards as the form of sediment and litter. It was effectively controlled by the combination of fence and permeable mat.

Journal

  • Journal of the Japanese Society of Revegetation Technology

    Journal of the Japanese Society of Revegetation Technology 39(1), 92-97, 2013-08-31

    JAPANESE SOCIETY OF REVEGETATION TECHNOLOGY

References:  9

Codes

  • NII Article ID (NAID)
    10031185959
  • NII NACSIS-CAT ID (NCID)
    AN10130633
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    09167439
  • NDL Article ID
    024881047
  • NDL Call No.
    Z18-1223
  • Data Source
    CJP  NDL  J-STAGE 
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