...That is, brown forest soil that mainly occurs under deciduous broadleaf forests, alluvial soil with immature soil formation, black soil with a large amount of humus accumulated on the surface of volcanic ash as parent material, red-yellow soil distributed in the warm temperate to subtropical regions with severe weathering and base leaching, podzol where iron and aluminum in the topsoil have leached to the lower layer due to acidic humus accumulated under coniferous forests in the alpine regions north of the Chubu region and in northern Hokkaido in the cold and humid climate. [Takai Yasuo] *Some of the terminology that mentions "soil map" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…すなわち主として落葉広葉樹林下に生成する褐色森林土,土壌生成が未熟な沖積土壌,火山灰を母材として表層に腐植が多量に集積して暗褐色ないし黒色を呈する黒ボク土,暖帯から亜熱帯に分布して風化が進み塩基の溶脱がはげしい赤黄色土,中部地方以北の高山地帯および北海道北部の低温多湿の針葉樹林下に集積した酸性腐植によって表土中の鉄,アルミニウムが下層に溶脱したポドゾルが分布している。【高井 康雄】 ※「soil map」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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