Transfer of Cesium 137 from Riparian Forest to a Headwater Stream Ecosystem in Fukushima, Japan
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- Kanasashi Tsutomu
- Graduate School of Bioagricultural Sciences, Nagoya University
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- Ayabe Yoshiko
- Graduate School of Bioagricultural Sciences, Nagoya University
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- Takenaka Chisato
- Graduate School of Bioagricultural Sciences, Nagoya University
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- Hijii Naoki
- Graduate School of Bioagricultural Sciences, Nagoya University
Bibliographic Information
- Other Title
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- 渓畔林における樹木から渓流生態系へのセシウム137の移動
- ケイハンリン ニ オケル ジュモク カラ ケイリュウ セイタイケイ エ ノ セシウム 137 ノ イドウ
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Abstract
We elucidated cesium 137 (137Cs) transfer from riparian forest to a headwater stream ecosystem through input of leaves contaminated by radionuclides due to the Fukushima Daiichi Nuclear Power Plant (NPP) Accident. In riparian zone of Kawamata-machi, Fukushima, living leaves of konara (Quercus serrata) were collected from crowns in 2013 and senescent leaves of that were collected from forest floor in November 2012 and 2013, respectively. In March 2013 and 2014, we collected senescent ones, which include konara leaves, deposited in a headwater stream running off the riparian zone. The comparison of 137Cs concentration showed that living leaves of konara contained higher 137Cs than fresh senescent ones. The 137Cs concentrations of fresh senescent leaves in the forest floor were larger than those of senescent ones deposited in the headwater stream. Therefore, we consider that 137Cs in the leaves was released to headwater stream while they were deposited in there. There was little change in 137Cs concentration of senescent leaves on forest floor and in the stream between 2 and 3 years after the FDNPP Accident, suggesting that 137Cs transfer from leaves to headwater stream ecosystems continues for a prolonged period.
Journal
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- Journal of the Japanese Forest Society
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Journal of the Japanese Forest Society 97 (2), 95-99, 2015
THE JAPANESE FORESTRY SOCIETY
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Keywords
Details 詳細情報について
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- CRID
- 1390282680205944704
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- NII Article ID
- 130005074910
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- NII Book ID
- AA12003078
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- ISSN
- 1882398X
- 13498509
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- NDL BIB ID
- 026444454
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed