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ビッターリッヒ法による幼令リュウキュウマツ林分の材積および立木本数の推定
http://hdl.handle.net/20.500.12000/19315
http://hdl.handle.net/20.500.12000/193152e79253e-821c-4cad-b21d-fe632e116b14
名前 / ファイル | ライセンス | アクション |
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No11p066.pdf
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Item type | デフォルトアイテムタイプ(フル)(1) | |||||||||
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公開日 | 2011-04-25 | |||||||||
タイトル | ||||||||||
タイトル | ビッターリッヒ法による幼令リュウキュウマツ林分の材積および立木本数の推定 | |||||||||
言語 | ja | |||||||||
タイトル | ||||||||||
タイトル | Estimate of the volume and the tree number of young Ryukyu-matsu (Pinus luchuensis Mayr) forest by the Bitterlich method. | |||||||||
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 research is an examination of the precision of the breast height basal area factors 4 and 1 in estimating the volume and tree number by the Bitterlich method. 2. The breast height basal area factors should be large when the diameter of the breast height becomes large in estimating volume and tree number by the Bitterlich method. While the factors of 4 and 1 are enough to make the estimation on general forest (DBH ≤150 cm). 3. The breast height basal area factor is more suitable as 1 than 4 for the young forest in which the research was done. As the result of the survey, it was found that the breast height diameter ranges 1 cm to 13 cm and the arithmatic mean of the breast height diameter is 5.3 cm. The number distribution showed a normal distribution. | |||||||||
内容記述 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | 紀要論文 | |||||||||
出版者 | ||||||||||
言語 | ja | |||||||||
出版者 | 琉球大学農家政工学部 | |||||||||
言語 | ||||||||||
言語 | jpn | |||||||||
資源タイプ | ||||||||||
資源タイプ | departmental bulletin paper | |||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
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/20.500.12000/19315 | |||||||||
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 | 0485-7828 | |||||||||
収録物識別子 | ||||||||||
収録物識別子タイプ | NCID | |||||||||
収録物識別子 | AN00250570 | |||||||||
収録物名 | ||||||||||
言語 | ja | |||||||||
収録物名 | 琉球大学農家政工学部学術報告 | |||||||||
収録物名 | ||||||||||
言語 | en | |||||||||
収録物名 | The science bulletin of the Division of Agriculture, Home Economics & Engineering, University of the Ryukyus | |||||||||
書誌情報 |
号 11, p. 66-82 |