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沖縄経営区におけるオキナワシイ（Castanopsis lutchuensis Nakai）立木幹材々積表
http://hdl.handle.net/20.500.12000/22012
http://hdl.handle.net/20.500.12000/22012b3f067aa-b80b-46ca-a2cb-d3ac718c8ac4
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
No3p193.pdf
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| Item type | デフォルトアイテムタイプ（フル）(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2011-11-04 | |||||||||
| タイトル | ||||||||||
| タイトル | 沖縄経営区におけるオキナワシイ（Castanopsis lutchuensis Nakai）立木幹材々積表 | |||||||||
| 言語 | ja | |||||||||
| タイトル | ||||||||||
| タイトル | Volume table of the Okinawa-shii (Castanopsis lutchuensis NAKAI) in Okinawa working unit. | |||||||||
| 言語 | en | |||||||||
| 作成者 |
砂川, 季昭
× 砂川, 季昭
× Sunakawa, Sueaki
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| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 1) The volume table of Okinawa-Shii was made to be used in the Okinawa working unit. It is the upper row of each height class in Table 5.2) The reason why the study of Okinawa-shii was made first is that the stock of it occupies 43 % of total stock of broad-leaved tree forest and 74 % of the useful broad-leaved trees in Okinawa working unit.3) Concerning the growth of Okinawa-shii, the height growth is very poor and the tendency of taper becomes greater as it grows in height. It seems to be due to the influence of wind; the reason might be made clear by the later studies.4) Today in Okinawa, the volume table published by Kumamoto Forestry Bureauis being used, but; a) Up until 15 meter high, the volume table value made by the author is greater than that published Kumamoto Forestry Bureau. b) After a survey made, it is found out that there are very few number of trees with 15 meter or above in height. c) The total volume of 61 trees obtained by using the stem analysis is compared which that which is obtained by using the volume table published by Kumamoto Forestry Bureau by rounding the diameters of trees to 2 centimeter and changing the height of the trees to 1 meter unit in Table 4. The later one was 2% smaller than the former one. The result of the same kind of study made at Yona Forestry of the University, in 1954, was 8% smaller. According to the three reasons given above it seems that the stock in Okinawa working unit has been underestimated.The author thinks that the amount of underestimation, which is influenced by the composition of stand especially by the distribution of diameter and height, is about 5%. | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 紀要論文 | |||||||||
| 出版者 | ||||||||||
| 出版者 | 琉球大学農家政学部 | |||||||||
| 言語 | ja | |||||||||
| 言語 | ||||||||||
| 言語 | jpn | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | departmental bulletin paper | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | NA | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_be7fb7dd8ff6fe43 | |||||||||
| 識別子 | ||||||||||
| 識別子 | http://hdl.handle.net/20.500.12000/22012 | |||||||||
| 識別子タイプ | HDL | |||||||||
| 収録物識別子 | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 0370-4238 | |||||||||
| 収録物識別子 | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AN0025056X | |||||||||
| 収録物名 | ||||||||||
| 収録物名 | 琉球大学農家政学部学術報告 | |||||||||
| 言語 | ja | |||||||||
| 収録物名 | ||||||||||
| 収録物名 | Science bulletin of Agriculture & Home Economics Division, University of the Ryukyus | |||||||||
| 言語 | en | |||||||||
| 書誌情報 |
号 3, p. 193-202 |
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