Feature and Distribution of Radionuclides in Movement of Soil in the Forest
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概要
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<SUP>40</SUP>K <SUP>226</SUP>Ra, <SUP>232</SUP>Th <I>and</I> <SUP>137</SUP>Cs <I>concentration in dip forest soil was analyzed with respect to soil horizon and topography. In addition, a relationship between soil erosion and amount of radioactive nuclide in moving soil was analyzed. 1) Vertical distribution of</I> <SUP>40</SUP>K <SUP>226</SUP>Ra <I>and</I> <SUP>232</SUP>Th <I>concentration was found non-uniform; which was high in B-horizon while low in A-horizon. 2) 92% of</I> <SUP>137</SUP>Cs <I>was kept in A-horizon, and its downward movement was restricted small. 3) </I> <SUP>137</SUP>Cs <I>concentration was found high in crest of which soil erosion was weak, and was found low in valley of which erosion was strong. 4) A clear relationship was found between the moving soil amount, a good indicator of soil erosion, and the</I> <SUP>137</SUP>Cs <I>content in it.</I>
- 社団法人 日本アイソトープ協会の論文
社団法人 日本アイソトープ協会 | 論文
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