森林土壌中の窒素の動態(II) : 土壌型の異なる2種の天然林土壌中の窒素の無機化と硝化活性

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概要

• 論文の詳細を見る

• Nitrogen mineralization and nitrifying activity were compared between different soil types of brown forest soils (dry brown forest soil : B_B, and moderately moist brown forest soil : B_D) in Tokyo University Forest in Aichi. The mineralizing activity was highest in the F layer of the B_B soil. The inorganic nitrogen released from the F layer sample during 60 days of incubation was 1.4 mg/g dry matter which was 11.9 percent of the total nitrogen. Most of the inorganic nitrogen released from the samples of the B_B soil was in the ammonia form. Calcium carbonate and ammonium sulfate were not effective agents for accerelating nitrification. The mineralizing activity of the B_D soil was highest in the A_1 horizon, and the inorganic nitrogen released during incubation was mostly in the nitrate form. The amount of mineralized nitrogen in the B_B soil during 60 days incubation, calculated on a per unit area basis, was 30 percent of that in the B_D soil, and the nitrified nitrogen in the B_B soil was only 5 percent of that in the B_D soil.

• 日本森林学会の論文
• 1980-06-25

著者

• 吉田 重明

  名古屋大学農学部

• 春田 泰次

  東京大学農学部附属演習林

• 仁王以 智夫

  東京大学農学部愛知演習林

関連論文

• 全国大学演習林における渓流水質
• 森林土壌中の窒素の動態(I) : 森林表層土における硝化細菌の分布と硝化活性
• 森林土壌中の窒素の動態(II) : 土壌型の異なる2種の天然林土壌中の窒素の無機化と硝化活性
• 4-9 落葉抽出液およびアミノ酸で環流した森林土壌の細菌相(4.土壤微生物)
• 4-13 森林土壌の有機物分解と細菌増殖の型(4 土壌微生物)
• 4-19 森林土壤に棲息する細菌群の特徴(4.土壤微生物)
• スギ落葉の分解に伴う非共生的窒素固定量の推定
• 植生を異にする森林土壤の一般的性質と窒素形態に関する研究

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