9 ブナ萠芽林に於けるブナ, 雜灌木類の成長に就て

スポンサーリンク

概要

• 論文の詳細を見る

• This investigation was carried out in the beech sprout forest on the gentle middle slope with nothern aspect of Mt. Iwaki (1,625m), Aomori Prefecture, to make researches in the growth of the beech and other shrubs in 1949. (a) In the beech sprout forest which has been formed by clear cutting, 1) during the first period the beech is lower than other shrubs. These shrubs-Tamushiba (Magnolia salicifolia MAXIM.), Okamenoki (Viburnum furcatum BLUME), Ryobu (Clethra barbinervis S. et Z.), Kuromoji (Parabenzoin trilobum NAKAI) etc.-grow very rapidly for several years, afterwards slowly, the beech, on the contrary, does constantly on an average of 23cm per gear. Consequently abut in its fifteenth year the beech rises above this layer and forms the stable forest type, and goes on. 2) As to the tendency of such beech sprout forest, it is advisable to carry out by the age of 15 years. (b) In the beech sprout forest which has been formed by selective cutting (small diameter class trees remain), 1) After the overwood has been cut, the suppressed advance growth of obout 2〜3m high begins and continues to grow rapidly in diameter (in 0.2m on the ground) in the next year and in tree height in the forth or fifth year. 2) Its growing ratio is nearly equal to that of the upper trees in the neighbouring forest. 3) Accordingly it is desirable for the supressed advance growth in the beech sprout forest to remain as much as possible. If we practise in this way. we are able to reduce at least fifteen yeas in final age, and thus expect it to increase in the yield so much.

• 日本森林学会の論文
• 1951-01-25

著者

• 樫村 大助

  林野庁

• 樫村 大助

  林業試験場青森支場

関連論文

• ブナ林における傘伐作業試験 : (第II報)種子の落下
• ブナ萠芽林に関する研究(第II報) : 伐採後の萠芽状况(その2)
• 47 ブナ林に於ける傘伐作業試験〔第1報〕 : 林分構造の統計的解析
• 117. ブナ林地帶針葉樹造林地の成績調査(第II報) : カラマツについて(第63回日本林学会大会講演要旨)
• 232. ブナ林に於ける傘伐作業試験(第II報) : 種子の落下
• 9 ブナ萠芽林に於けるブナ, 雜灌木類の成長に就て
• 7 ブナ萌芽林に於けるブナ, 雜灌木類の成長について(林業の部)(昭和25年日本林學會春季大會)

スポンサーリンク