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第10巻 第2号 自然科学 (1962) >

このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/10105/4785

タイトル: 奈良学芸大学附属演習林における天然生林の林分構造に関する研究(1)
その他のタイトル: Studies on the Natural Stand in the Experimental Forest attached to Nara Gakugei University (1)
著者: 平田, 善文
栗栖, 宏治
発行日: 1962年3月26日
出版者: 奈良学芸大学
収録雑誌名: 奈良学芸大学紀要. 自然科学
巻: 10
号: 2
開始ページ: 195
終了ページ: 200
ISSN: 03693937
収録種別: 紀要論文
抄録: The studies were made on the number and volume of trees in the natural stand in the experimental forest attached to Nara Gakugei University from a standpoint of the habitat, the tree species and the diameter of a tree trunk. 1) This stand is chiefly composed of coniferous and broad-leaved trees mixed in a ratio of 3 : 7 in volume and of 1.5 : 8.5 in number, respectively. 2) The volume and number of trees decrease in proportion to the altitude. 3) Though the trees belonging to a small diameter class (8-20cm) predominate all over the area, without any connection with altitude, the trees belonging to a middle diameter class (20-32cm) and those belonging to a large one (above 32cm) are few in number. 4) In this stand, coniferous and broad-leaved trees with small diameter are in large number, and especially the latter are very numerous. 5) In regard to the volume of trees grouped into diameter classes, there is little difference, if any, as seen in the case of the number of trees, and the volume is large in the reverse order of the dimensions of diameter. 6) In coniferous trees, the volume is the greatest in those with middle diameter and the smallest in those with large one, but in broad-leaved trees, it is inversely proportionate to the dimensions of diameter.
言語: jpn
URI: http://hdl.handle.net/10105/4785
出現コレクション:第10巻 第2号 自然科学 (1962)


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