Volcanic soil

Japanese: volcanic soil（英語表記）volcanicsoil

…The definition of volcanic ash is slightly broader than that of geology, and refers to soil derived from volcanic emissions, including pumice and scoria. Therefore, it is also called volcanic soil in some places. Japan is one of the world's most volcanic countries, so volcanic ash soil is widely distributed, covering an area of about 60,000 km2, or about 16% of the country's land area.

*Some of the terminology that refers to "volcanic soil" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…地質学における火山灰の定義よりやや広く，軽石やスコリアを含む火山放出物に由来する土壌をいう。したがって，一部では火山性土volcanic soilとも呼ばれる。日本は世界有数の火山国であるから，火山灰土壌の分布も広く，面積約6万km2，国土の約16％に及んでいる。…

※「volcanic soil」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典第２版について | 情報

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