Effects of particle size on the<sup>137</sup>Cs vertical distribution in forest soils of different organic matter contents.  [in Japanese] Effects of particle size on the<sup>137</sup>Cs vertical distribution in forest soils of different organic matter contents.  [in Japanese]

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<p> The aim of this study is to investigate the effect of course particulate organic matter (CPOM) and fine particulate organic matter (FPOM) from oak and cedar F- type layers on Cs- 137 vertical distribution in forest soils of high, mid and low organic matter contents respectively via laboratory based column method. Experimental set was incubated from June to August, 2017 (2 months). Soils were sampled at depths 0-1, 1-2, 2-3, 3-4 and 4-5 cm respectively with Cs- 137 concentrations measured in kBq kg dry weight.Results revealed high amounts of <sup>137</sup>Cs distributed in 0-1 cm in all soil with oak FPOM. This was followed by a sharp decline down the depth. Again <sup>137</sup>Cs distribution showed the following order for all soils: High> Mid> Low. However, this was very significant for soils with both oak CPOM and FPOM. The high adsorption was attributed to high organic matter content as well as smaller particle size of oak FPOM in comparison to that of cedar.</p>

<p>[in Japanese]</p>

Journal

  • The Japanese Forest Society Congress

    The Japanese Forest Society Congress 130(0), 364, 2019

    THE JAPANESE FORESTRY SOCIETY

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