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高密カラマツ林の林分構成
http://hdl.handle.net/10091/14013
http://hdl.handle.net/10091/140131f63e8a9-94b8-4872-91cc-f07ce1651197
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 | 2012-03-07 | |||||||
タイトル | ||||||||
タイトル | 高密カラマツ林の林分構成 | |||||||
タイトル | ||||||||
タイトル | Stand Composition of Overcrowded Japanese Larch Forest | |||||||
言語 | ||||||||
言語 | jpn | |||||||
資源タイプ | ||||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||||
タイプ | departmental bulletin paper | |||||||
著者 |
島崎, 洋路
× 島崎, 洋路
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出版者 | ||||||||
出版者 | 信州大学農学部附属演習林 | |||||||
引用 | ||||||||
内容記述 | 信州大学農学部演習林報告 21: 131-160(1984) | |||||||
書誌情報 |
信州大学農学部演習林報告 巻 21, p. 131-160, 発行日 1984-10-15 |
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抄録 | ||||||||
内容記述 | The author tried to analyse the stand composition of Japanese Larch forest typically overcrowded in our Terasawayama-University Forest. The outline of the standsinventory is as follows: forest age: 22 years old planting density: 3,100 trees per hectare existing density: 2,600 trees per hectare tree height: 6-16 meters mean height of all stands: 13.2 meters mean height of upper trees: 14.1 meters site index: 21 meters per 40 years diameter breast high (d.b.h): 4-22 centimeters mean d.b.h.: 12.6 centimeters ratio of clear length: lower side of stem: about 60% upper side of stem: avove 70% Classification of tree form estimated by TERAZAKI's method 〓 *Trees in these classes showed significant stem curve. ratio of tree height to d.b.h.: 105 relative index of yield: 0.90-0.92 relative ratio of stem dstance: 14-15 From the results outlined above, the following views can be pointed out as a management of the overcrowded Japanese larch forest. 1) Japanese larches usually show co-existing type growth. Therefore, there is a sign of falling together when they are overcrowed. 2) Standing density and upper trees height for the limitation of overcrowding are above 2,000 trees per hectare and above 13-14 meters, respectively. 3) An alternative thinning system must be investigated in order to get rid of the overcrowding of Japanese larch forest. | |||||||
資源タイプ(コンテンツの種類) | ||||||||
内容記述 | Article | |||||||
ISSN | ||||||||
収録物識別子タイプ | ISSN | |||||||
収録物識別子 | 0559-8613 | |||||||
書誌レコードID | ||||||||
収録物識別子タイプ | NCID | |||||||
収録物識別子 | AN00121330 | |||||||
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出版タイプ | VoR | |||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |