Sources of $$^{137}$$Cs fluvial export from a forest catchment evaluated by stable carbon and nitrogen isotopic characterization of organic matter
森林集水域から流出する$$^{137}$$Csの起源の推定; 有機物の炭素及び窒素安定同位体比に着目して
武藤 琴美; 安藤 麻里子; 小嵐 淳; 竹内 絵里奈; 西村 周作; 都築 克紀; 松永 武*
Muto, Kotomi; Atarashi-Andoh, Mariko; Koarashi, Jun; Takeuchi, Erina; Nishimura, Shusaku; Tsuzuki, Katsunori; Matsunaga, Takeshi*
Fluvial export of particulate and dissolved $$^{137}$$Cs was investigated to reveal its sources and transfer mechanisms in a broadleaved forest catchment using a continuous collection system. The finest size fraction ($$<$$ 75$$mu$$m), consisting of decomposed litter and surface mineral soil, was the dominant fraction in the particulate $$^{137}$$Cs load, although the contribution of coarser size fractions increased during high water discharge in 2014. The dissolved $$^{137}$$Cs originated from the decomposition of $$^{137}$$Cs-contaminated litter. Temporal changes in $$^{137}$$Cs distribution in the litter-mineral soil system indicated that the dissolved $$^{137}$$Cs load will be moderated in several years, while particulate $$^{137}$$Cs load has the potential to continue for a long time.
使用言語 : English
掲載資料名 : Journal of Radioanalytical and Nuclear Chemistry
: 314
: 1
ページ数 : p.403 - 411
発行年月 : 2017/10
出版社名 : Springer
特許データ :
論文URL :
キーワード : Fukushima Daiichi Nuclear Power Station Accident; Radiocesium; Organic Matter; Dissolved radiocesium; Particulate radiocesium; 福島第一原子力発電所事故
使用施設 :
広報プレスリリース :
受委託・共同研究相手機関 :
登録番号 : AA20170136
抄録集掲載番号 : 45001322
論文投稿番号 : 19548
Accesses  (From Jun. 2, 2014)
- Accesses
分野:Chemistry, Analytical
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