Journal of Plant Research

, Volume 127, Issue 1, pp 11–22 | Cite as

Estimation of soil-to-plant transfer factors of radiocesium in 99 wild plant species grown in arable lands 1 year after the Fukushima 1 Nuclear Power Plant accident

  • Jun Yamashita
  • Takashi Enomoto
  • Masao Yamada
  • Toshiro Ono
  • Tadashi Hanafusa
  • Tomohiro Nagamatsu
  • Shoji Sonoda
  • Yoko Yamamoto
JPR Symposium Current status and future control of cesium contamination in plants and algae in Fukushima

Abstract

One year after the deposition of radionuclides from the Fukushima 1 Nuclear Power Plant (A formal name is Fukushima Daiichi Nuclear Power Station) in March 2011, radiocesium (134Cs, 137Cs) concentrations ([Cs]) were comprehensively investigated in the wild plants of 99 species most of which were annual or summer green perennial herbs and started to grow from April 2012 at the heavily contaminated fields of paddy (three study sites) and upland (one study site) in Fukushima Prefecture. The survey was conducted three times (April, July and October) in the year. In each site, soils (soil cores of 5-cm depth) and plants (aerial shoots) were collected for determination of [Cs] on a dry weight basis, and then the transfer factor (TF) of radiocesium from soil to plant ([Cs]plant/[Cs]soil) was estimated in each species. The [Cs] values of both soils and plants largely varied. However, some species exhibited relatively high TF values (more than 0.4) (e.g., Athyrium yokoscense, Dryopteris tokyoensis, and Cyperus brevifolius), while others exhibited almost negligible values (less than 0.01) (e.g., Salix miyabeana, Humulus scandens, and Elymus tsukushiensis). In addition, judging from the 11 species grown in both paddy and upland fields, TF values were generally higher in the paddy fields. The estimation of phytoextraction efficiency of soil radiocesium by weed communities in the paddy fields suggests that the weed community is not a practical candidate for phytoremediation technique.

Keywords

Arable lands Fukushima 1 Nuclear Power Plant accident Phytoremediation Radiocesium Transfer factor Weed management 

Notes

Acknowledgments

We would like to express the deepest appreciation to Iitate-mura officers and the landowners for permitting us the field survey. We are deeply grateful to Mr. Hiroshi Ohta (Fukushima Prefecture) and Mr. Hirotsuna Hoshi, Mr. Katsunori Takita, and Mr. Masataka Sasaki (Fukushima Agricultural Technology Center) for introducing us to Iitate-mura and giving us useful local information. We thank to Dr. Tetsuro Mimura (Kobe University) and to Dr. Mutsumi Yamagami (Institute for Environmental Sciences, Aomori, Japan) for their useful information and kind advices about the preparation of plant and soil samples. This study was supported by the Grant for “Strategies for the Efficient Operation of the Okayama University”, 2012–2013.

Supplementary material

10265_2013_605_MOESM1_ESM.docx (251 kb)
Supplementary material 1 (DOCX 251 kb)
10265_2013_605_MOESM2_ESM.docx (41 kb)
Supplementary material 2 (DOCX 42 kb)

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Copyright information

© The Botanical Society of Japan and Springer Japan 2013

Authors and Affiliations

  • Jun Yamashita
    • 1
  • Takashi Enomoto
    • 1
  • Masao Yamada
    • 2
  • Toshiro Ono
    • 2
  • Tadashi Hanafusa
    • 2
  • Tomohiro Nagamatsu
    • 2
  • Shoji Sonoda
    • 1
  • Yoko Yamamoto
    • 1
  1. 1.Institute of Plant Science and ResourcesOkayama UniversityOkayamaJapan
  2. 2.Shikata Laboratory, Department of Radiation Research, Advanced Science Research CenterOkayama UniversityOkayamaJapan

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