| Project/Area Number |
05806021
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
林学
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| Research Institution | The University of Tokyo |
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Principal Investigator |
YAMATO Hirokazu The University of Tokyo, Faculty of Agriculture, Associate Professor., 農学部(林), 助教授 (70174810)
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| Co-Investigator(Kenkyū-buntansha) |
KISANUKI Hiromitsu The University of Tokyo, Faculty of Agriculture, Assistant to Professor., 農学部(林), 助手 (00251421)
NITAMI Toshio The University of Tokyo, Faculty of Agriculture, Associate Professor., 農学部(林), 助教授 (20192255)
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| Project Period (FY) |
1993 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1995: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1994: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1993: ¥600,000 (Direct Cost: ¥600,000)
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| Keywords | boreal natural stand / species characteristic / stand structure / standing crop / population / surviving tree / selection cutting / topographic factor |
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| Research Abstract |
The purpose of this study is to make clear quantitatively the appearance frequency and the occupation rate of each species which constructs the stand. It is recognized that 1. The standing crop is not influenced by topographic factors. 2. The occupation rates of Picea jezoensis Carr.and Quercus mongolica Turcz.increase on gentle slopes, the rates of Betula maximowicziana Regel and Tilia japonica Simk.increase on steep slopes. 3. The occupation rates of Abies sachalinensis Mast.and Picea glehnii Mast.increase on slopes facing south.the rates of Cercidiphyllum japoicum S.et Z.and Acer mono Max.var.glabrum Hara increase on slopes facing north. 4. The number of surviving trees increase on steep slopes and on slopes facing south.
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