On the nature of fresh volcanic ashes as parent material ejected from the Sakurajima and Aso volcanoes |
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Authors: | Ichiro Kanno Masao Nagai Shizuoki Arimura |
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Affiliation: | National Kyushu Agricultural Experiment Station , Chikugo, Fukuoka Pref. , Japan |
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Abstract: | There are few pedological studies in Japan of fresh volcanic ash. Fundamental information of the material from which Japanese volcanic-ash soils have developed, is of importance to obtain a better understanding of pedogenesis of such soils. The present paper deals with the mechanical. mmeralogical, and chemical characteristics of fresh ash ejected from the Sakurajima and Aso volcanoes which are among the most active in Japan. |
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Keywords: | accumulation DOC drainage humus paddy field |
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