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Root-Uptake of C-14 Acetic Acid by Various Plants and C-14 Dynamics Surrounding the Experimental Tessera

https://repo.qst.go.jp/records/69294
https://repo.qst.go.jp/records/69294
4514fbd7-e9aa-43a3-987b-4ddc0c839401
Item type 会議発表用資料 / Presentation(1)
公開日 2008-03-03
タイトル
タイトル Root-Uptake of C-14 Acetic Acid by Various Plants and C-14 Dynamics Surrounding the Experimental Tessera
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_c94f
資源タイプ conference object
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 Ogiyama, Shinichi

× Ogiyama, Shinichi

WEKO 680029

Ogiyama, Shinichi

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Takeda, Hiroshi

× Takeda, Hiroshi

WEKO 680030

Takeda, Hiroshi

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Uchida, Shigeo

× Uchida, Shigeo

WEKO 680031

Uchida, Shigeo

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荻山 慎一

× 荻山 慎一

WEKO 680032

en 荻山 慎一

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武田 洋

× 武田 洋

WEKO 680033

en 武田 洋

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内田 滋夫

× 内田 滋夫

WEKO 680034

en 内田 滋夫

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抄録
内容記述タイプ Abstract
内容記述 Geological disposal of radioactive waste from nuclear facilities is planned to avoid radiation exposure to the public people. For maintaining public health safety and assessing radiation exposure, it is necessary to clarify pathways on how these radioactive elements are transferred through the biosphere to reach via consumption of edible plants. Past studies have reported that soybean and rice plants grown in a nutrient solution containing various radioactive nuclides, such as metal elements, accumulated them in the plant parts. Also, radiotracer experiments on vegetable plants and root crops have reported. However, little is known about carbon transfer to plants based on geological disposal of radioactive waste. Carbon-14 from radioactive waste is one of the most important radioactive nuclides for environmental assessment in the context of geological disposal. There are both organic and inorganic carbon forms in radioactive waste, and it has been reported that most organic carbon in radioactive waste is present as carboxylic acids such as acetic acid. It has been generally thought that a major carbon source for plants comes from air as carbon dioxide (CO2) and then it is assimilated by photosynthesis. However, it is also necessary for assessment of geological disposal to clarify transfer of carbon from underground and absorption of carbon by plant roots. Thus, the present study was conducted to examine plant uptake and assimilation of carbon through plant roots by using C-14 nuclide in the form of acetic acid. The root-uptake of organic carbon as acetic acid by various plants and dynamics of carbon surrounding the experimental tessera (spatially heterogeneous environment) were examined using C-14 nuclide.
会議概要(会議名, 開催地, 会期, 主催者等)
内容記述タイプ Other
内容記述 Waste Management 2008
発表年月日
日付 2008-02-28
日付タイプ Issued
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