スギ人工林における冠雪害抵抗性の推定とその応用に関する研究

• Material Type: 博士論文
• Title: スギ人工林における冠雪害抵抗性の推定とその応用に関する研究
• Author/Editor: 嘉戸, 昭夫
• Author Heading: 嘉戸, 昭夫
• Publication, Distribution, etc.: 岩手大学
• Publication Date: 2000
• Publication Date (W3CDTF): 2000
• Alternative Title: Study on the approach for estimating resistance of Japanese cedar to snow accretion damage and its application
• Pages: 1-152
• Degree grantor/type: 岩手大学
• Date Granted: 2000-03-24
• Dissertation Number: 乙第39号
• Degree Type: 博士（農学）
• Text Language Code: jpn
• Target Audience: 一般
• Note (General): A snow accretion damage to sugi(Cryptomeria japonica D.DON)stands is common in Japan, especially in low altitude of Toyama prefecture. An index as ameasure of the tree resistance to the snow load is necessary to carry out with in silvicultural treatments such as thinning or pruning to reduce the damage. Nakatani(1991)proposed an approach to calculate a critical snow fall that is a new index for measuring the resistance to the damage on individual tree and indicates an amount of snow fall causing the damage. In this study, the Nakatani's approach was further developed in order to make easier an estimation of the critical snow fall. The effects of selection of the cultivers, thinning and pruning on the damage to sugi stands of Toyama prefecture with respect to tree height, stem diameter and age were evaluated by using the developed approach and consequently the critical snow fall was estimated.
• DOI: 10.11501/3170701
• Access Restrictions: インターネット公開
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 岩手大学 : 岩手大学リポジトリ

• Summary, etc.: 林木の冠雪害は多量の降雪が枝葉に付着･堆積し,その荷重によって林木が折損する代表的な気象災害の一つである｡この被害の危険性は,北陸地方, とりわけ富山県の里山で高いことが指摘されている｡この被害を防除･軽減するためには,間伐や枝打ちなどにより林木の冠雪害抵抗性を高めることが有効とされている｡そのため...