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Article type: Cover
1966Volume 15 Pages
Cover1-
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Article type: Appendix
1966Volume 15 Pages
App1-
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Article type: Appendix
1966Volume 15 Pages
App2-
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Article type: Index
1966Volume 15 Pages
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Article type: Article
1966Volume 15 Pages
1-5
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Article type: Article
1966Volume 15 Pages
6-8
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1966Volume 15 Pages
9-11
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Article type: Article
1966Volume 15 Pages
12-19
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1966Volume 15 Pages
20-23
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1966Volume 15 Pages
24-29
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Article type: Article
1966Volume 15 Pages
30-33
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Article type: Article
1966Volume 15 Pages
34-36
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1966Volume 15 Pages
37-39
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1966Volume 15 Pages
40-42
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Article type: Article
1966Volume 15 Pages
43-46
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1966Volume 15 Pages
47-49
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1966Volume 15 Pages
50-52
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1966Volume 15 Pages
53-57
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1966Volume 15 Pages
58-74
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1966Volume 15 Pages
75-77
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Ryuzo WAKABAYASHI, Shinichiro SAITO, Tetsuya KUDO
Article type: Article
1966Volume 15 Pages
78-81
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The avalanche hazard area (Fig. 1) in the mountain of Teshio Experiment Forest of Hokkaido Univ., in the northern part of Hokkaido, was researched through winter and summer of 1966 to get information of vegetation's damaged forms on snow sliding zones. In this area, many ground avalanches occured on slopes with a southern aspect where Sasa Macrochlamys grew thick and few broad-leaved trees were scattered after two forest fires of 1926 and -27. They broke out on feet of slopes with a northern aspect, too. The features of the vegetation on avalanched slopes are as follows: 1. Stands are small and bushy (Table 4). 2. Trunks slope near level to valley side and no branches are observed at hill sides of trunks (Fig. 3). 3. The hill side barks of Betula Ermani are stripped over. 4. As compared with an non-avalanched slope, Sasa Macrochlamys grow much the same in density, but smaller in height and diameter (Table 5).
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S. SAITO, T. KUDO
Article type: Article
1966Volume 15 Pages
82-85
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Wherever you want good shelterbelts, you must firstly establish low tree belts of pioneer broad-leaved trees. And, in several years, after the completion of the belts, you will be able to create high tree belts among or behind them. On late September in 1965, the idea was adapted on peat-bog of reed, Phragmites communis, at Toikanbetsu, northern Hokkaido. Afforestation on peat-bog needs drainage. And planting mounds were rolled up with bog-bulldozer. On the mounds wood-cuttings of Hakkaido poplar, Populus maximowiczii, and a native willow, Salix sachalinensis, were planted, because the method is only suitable for planting to such a land-preparation. After one year few were damaged by freezing and drying. The renewed shoots out of wood-cuttings have grown vigorously and attained to their maximum height of 0.7m and standard 0.3m in Populus, and 1.7m and 1.0m in Salix, respectively. Effective low tree belts will be promised within ten years.
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Article type: Article
1966Volume 15 Pages
86-89
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1966Volume 15 Pages
90-92
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Article type: Article
1966Volume 15 Pages
93-95
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Article type: Article
1966Volume 15 Pages
96-99
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Article type: Article
1966Volume 15 Pages
100-103
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1966Volume 15 Pages
104-107
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1966Volume 15 Pages
108-111
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1966Volume 15 Pages
112-116
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Article type: Article
1966Volume 15 Pages
117-118
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Article type: Article
1966Volume 15 Pages
119-120
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Article type: Article
1966Volume 15 Pages
121-122
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Article type: Article
1966Volume 15 Pages
123-
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1966Volume 15 Pages
124-
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1966Volume 15 Pages
125-128
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1966Volume 15 Pages
129-131
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1966Volume 15 Pages
132-136
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1966Volume 15 Pages
137-138
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1966Volume 15 Pages
139-142
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1966Volume 15 Pages
143-146
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1966Volume 15 Pages
147-148
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Article type: Article
1966Volume 15 Pages
149-153
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1966Volume 15 Pages
154-156
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1966Volume 15 Pages
157-159
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1966Volume 15 Pages
160-163
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1966Volume 15 Pages
164-168
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Article type: Article
1966Volume 15 Pages
169-173
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Article type: Index
1966Volume 15 Pages
174-188
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Article type: Appendix
1966Volume 15 Pages
App3-
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