...climate changes in temperature and dryness have a great influence on the formation of forests, their types, and the characteristics of forest soil. The main types of forest soil in Japan are podzols under spruce and todo fir forests in Hokkaido and under dwarf pine forests in the high mountains of Honshu, brown forest soil under beech forests, yellow-brown soil under chinquapin forests, and red soil under serrata forests. Of these, brown forest soils account for the majority of forest soils in Japan, and are further divided into dry brown forest soils, wet brown forest soils, etc., depending on the difference between wetness and dryness. *Some of the terminology that refers to "yellow-brown soil" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…気候の乾湿,寒暖は森林の形成,その種類ならびに森林土壌の特徴をも決定するほどの大きな影響力をもつ。日本の森林土壌のおもな種類は北海道のエゾマツ,トドマツ林下や本州高山地のハイマツ林下のポドゾル,ブナ林下の褐色森林土,シイ林下の黄褐色土,タブ林下の赤色土などである。このうち褐色森林土は日本の森林土壌の大部分を占め,乾湿の差により乾性褐色森林土,湿性褐色森林土などに細分されている。… ※「黄褐色土」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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