Faculty of Agriculture, Shimane University
ISSN:0370-940X
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Bulletin of the Faculty of Agriculture, Shimane University 20
1986-12-20 発行
アテ択伐林に関する研究(9) : 興徳寺固定試験地の第1経理期における林分構成と生長
Studies on the Selection Forest of Ate(Thujopsis dalabrata SIEB. Et ZUCC. Var. hondai MAKINO)(9) : On the Stand Structure and Growth in First Circulation-Period at the Kohtokuji Permenent Plots of Ate Selection Forest
Yasui, Hitoshi
Fujie, Isao
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The change of the stand structure and the volume increment of the selection forest of "MAATE" in first cutting cycle(1980-1985) were investigated at the Kohtokuji permanent plot set up in Mii Cho, Wajima City. The forest has been managed by the selection method.
The change processes of diameter and height distribution in the cutting cycle were shown Table 10-Table 13. After cutting in 1983, regeneration of forest succeed dering this work.
The diameter and height distributions of this plot shown as Type I of Pearson's frequency curve(twisted J-shape type).
The current annual volume increment in the cutting cycle amounted 9.8m^3 per ha., and the remaining trees of middle and large class produced the major part of the total increment.
The change processes of diameter and height distribution in the cutting cycle were shown Table 10-Table 13. After cutting in 1983, regeneration of forest succeed dering this work.
The diameter and height distributions of this plot shown as Type I of Pearson's frequency curve(twisted J-shape type).
The current annual volume increment in the cutting cycle amounted 9.8m^3 per ha., and the remaining trees of middle and large class produced the major part of the total increment.
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