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火山灰土在土壤分类中,最近才被列为一个新型土类。1984年8月中国土壤学会森林土壤专业委员会在黑龙江省带岭召开的森林土壤分类会议上拟定的《中国森林土壤分类系统》中,将火山灰土列入新成土纲的火山灰土类。
Volcanic ash has recently been classified as a new type of soil in soil classification. 1984 August China Soil Association of Forest Soil Professional Committee in Heilongjiang Province held a ridge soil classification meeting prepared by the “China Forest Soil Classification System”, the volcanic ash into the newly formed volcanic ash soil class.