Radiocesium concentrations in soil and leaf after decontamination practices in a forest plantation highly polluted by the Fukushima accident

25 Pags.- 4 Tabls.- 5 Figs. The definitive version is available at: https://www.sciencedirect.com/science/journal/02697491

Detalhes bibliográficos
Autores: López-Vicente, Manuel, Onda, Yuichi, Takahashi, Junko, Kato, Hiroaki, Chayama, Shinya, Hisadome, Keigo
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/163880
Acesso em linha:http://hdl.handle.net/10261/163880
Access Level:acceso abierto
Palavra-chave:Fukushima accident
Radiocesium
Clearcutting
Litter removal
Tree thinning
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spelling Radiocesium concentrations in soil and leaf after decontamination practices in a forest plantation highly polluted by the Fukushima accidentLópez-Vicente, ManuelOnda, YuichiTakahashi, JunkoKato, HiroakiChayama, ShinyaHisadome, KeigoFukushima accidentRadiocesiumClearcuttingLitter removalTree thinning25 Pags.- 4 Tabls.- 5 Figs. The definitive version is available at: https://www.sciencedirect.com/science/journal/02697491Owing to the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident a vast amount of radiocesium was released polluting the land. Afterwards, a variety of decontamination practices has been done, reducing the ambient dose rates. In this study we evaluated the effectiveness of eight forest decontamination practices by means of monitoring the radiocesium (137Cs) concentration in soil and leaf samples, and the daily discharge rates in ten plots during 27 months (May 2013–July 2015). A forest plantation located 16 km southwest to the FDNPP and within the exclusion area was selected. Radiocesium concentrations were analysed using a germanium gamma ray detector. The differences in radiocesium activities between the different plots were statistically significant (p < 0.05) and four homogeneous groups were distinguished. Tree thinning and litter removal greatly reduced the radioactivity and the two plots devoted to these practices presented the highest discharge rates of 137Cs (Th + LR; 350–380 Bq/m2 day), followed by the two Th plots (163–174 Bq/m2 day). The clearcutting with LR and the LR plots (104 and 92 Bq/m2 day) also had higher rates than those rates in the control plots (51 Bq/m2 day). We only observed low rates in the two plots with matting (19–25 Bq/m2 day). The temporal variability was explained by (i) the different rainfall depths registered during the measurement intervals (accumulated precipitation from 14 to 361 mm); and (ii) the fluctuations of the total surface coverage. The decrease trend in radiocesium concentration was high in 2013, moderate in 2014 and low in 2015 owing to the vegetation recovery after the countermeasures, thus reducing the possibility of the second pollution of the neighbouring areas. The average proportions of contribution of 137Cs discharge by soil and leaf fraction were 96.6% and 3.4%.This research was funded by the project “Development of techniques for migration control against radioactive substances in forests (2012–2016)” of the Japanese Forestry Agency. Dr. Manuel López-Vicente acknowledges the financial support of his postdoctoral stay at the University of Tsukuba (Prof. Onda Laboratory) in 2015 to the Canon Foundation in Europe (Research Fellowships Program, Call 2014) and in 2016 to Prof. Yuichi Onda.Peer reviewedMinistry of Agriculture, Forestry and Fisheries (Japan)Canon Foundation in EuropeConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201820182018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/163880reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.envpol.2018.04.045Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1638802026-05-22T06:33:51Z
dc.title.none.fl_str_mv Radiocesium concentrations in soil and leaf after decontamination practices in a forest plantation highly polluted by the Fukushima accident
title Radiocesium concentrations in soil and leaf after decontamination practices in a forest plantation highly polluted by the Fukushima accident
spellingShingle Radiocesium concentrations in soil and leaf after decontamination practices in a forest plantation highly polluted by the Fukushima accident
López-Vicente, Manuel
Fukushima accident
Radiocesium
Clearcutting
Litter removal
Tree thinning
title_short Radiocesium concentrations in soil and leaf after decontamination practices in a forest plantation highly polluted by the Fukushima accident
title_full Radiocesium concentrations in soil and leaf after decontamination practices in a forest plantation highly polluted by the Fukushima accident
title_fullStr Radiocesium concentrations in soil and leaf after decontamination practices in a forest plantation highly polluted by the Fukushima accident
title_full_unstemmed Radiocesium concentrations in soil and leaf after decontamination practices in a forest plantation highly polluted by the Fukushima accident
title_sort Radiocesium concentrations in soil and leaf after decontamination practices in a forest plantation highly polluted by the Fukushima accident
dc.creator.none.fl_str_mv López-Vicente, Manuel
Onda, Yuichi
Takahashi, Junko
Kato, Hiroaki
Chayama, Shinya
Hisadome, Keigo
author López-Vicente, Manuel
author_facet López-Vicente, Manuel
Onda, Yuichi
Takahashi, Junko
Kato, Hiroaki
Chayama, Shinya
Hisadome, Keigo
author_role author
author2 Onda, Yuichi
Takahashi, Junko
Kato, Hiroaki
Chayama, Shinya
Hisadome, Keigo
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministry of Agriculture, Forestry and Fisheries (Japan)
Canon Foundation in Europe
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Fukushima accident
Radiocesium
Clearcutting
Litter removal
Tree thinning
topic Fukushima accident
Radiocesium
Clearcutting
Litter removal
Tree thinning
description 25 Pags.- 4 Tabls.- 5 Figs. The definitive version is available at: https://www.sciencedirect.com/science/journal/02697491
publishDate 2018
dc.date.none.fl_str_mv 2018
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/163880
url http://hdl.handle.net/10261/163880
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.envpol.2018.04.045
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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