Forest soil - Shinrindojo

Japanese: 森林土壌 - しんりんどじょう

This refers to soil distributed in forested areas. Forest soil receives a large amount of organic matter in the form of fallen leaves and branches from the trees that make up the forest every year, and the amount is estimated to range from a few tons to more than 25 tons per hectare per year. Litter is decomposed into humus by small animals and microorganisms in the soil, and some of the inorganic components and mineralized nitrogen produced during the decomposition process are absorbed and used again as nutrients by the trees, so these decomposition processes are important factors that control the circulation of materials in forests and have a significant impact on the formation of forest soil.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

樹林地帯に分布する土壌をいう。森林土壌は森林を構成する樹木によって，毎年落葉枝の形で多量の有機物の供給をうけるが，その量は年間1ha当り数tから25t以上にも及ぶと推定されている。落葉枝は土壌中の小動物や微生物によって分解され腐植となるが，分解過程で生成した無機成分の一部や無機化した窒素はふたたび樹木の養分として吸収利用されるので，これらの分解過程は森林における物質循環を支配する重要な因子であるとともに，森林土壌の形成に重要な影響を与える。

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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