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A New Method for Thinning Forest by Reserved Tree Marking System
http://hdl.handle.net/10091/2469
http://hdl.handle.net/10091/246935e735f6-4097-4a4d-9b17-7ebddee95037
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2009-03-03 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | A New Method for Thinning Forest by Reserved Tree Marking System | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
その他(別言語等)のタイトル | ||||||
その他のタイトル | 保残木マーク方式による新しい間伐法 | |||||
著者 |
SHIMAZAKI, Yoji
× SHIMAZAKI, Yoji |
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出版者 | ||||||
出版者 | 信州大学農学部 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 信州大学農学部紀要 26(1・2): 1-12(1990) | |||||
書誌情報 |
信州大学農学部紀要 巻 26, 号 1・2, p. 1-12, 発行日 1990-01-30 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Overcrowded forests are frequently seen in various regions of Nagano Prefecture due to the decreased of forest workers. Accordingly, to prevail reasonable forest management such as reduction of labors became an important problem which calls for an urgent answer fitting present social situation on the forestry in Japan. In the present study, the author proposed a new method for thinning by the reserved tree marking system in order to obtain thicker and more excellent trees within the relatively short period. In the initial step, superiority or inferiority in tree growth was estimated in a given forest using the site index curve, in addition reasonable tree density taking into consideration of height of the upper trees in 60-year stand age was estimated, and thereafter suitable trees selected as final cutting trees were marked. The distribution of the reserved trees should be considered when the trees are selected. At the first time of thinning, the trees which are expected to prevent the growth of the reserved trees should be removed regardless of their growth or quality conditions. In addition, short diameter trees which ara not expected to yield in the future should be removed. Other trees remin up to next thinning time. The new method provided conspicuous effectiveness for thinning. | |||||
言語 | en | |||||
資源タイプ(コンテンツの種類) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0583-0621 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00121352 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |