THINNING OF SCOTS PINE STANDS AND SNOW DAMAGE

被引：0
|
作者：
Novak, Jiri [1 ]
Dusek, David [1 ]
Slodicak, Marian [1 ]
机构：
[1] VS Opocno, Vvi, Vyzkumny Ustav Lesniho Hospodarstvi & Myslivosti, Olive 550, Opocno 51773, Czech Republic
来源：
REPORTS OF FORESTRY RESEARCH-ZPRAVY LESNICKEHO VYZKUMU | 2013年 / 58卷 / 02期
关键词：
Scots pine; Pinus sylvestris L; snow damage; thinning; quotient of slenderness;
D O I：
暂无
中图分类号：
S7 [林业];
学科分类号：
0829 ; 0907 ;
摘要：
Effect of thinning on snow damage in Scots pine (Pinus sylvestris L.) stands was studied in three long-term experiments located in Polabi Lowland in the Eastern Bohemia. High snowfall occurred in January 2010 and damage in differently thinned (and planted with different spacing) 25-, 48- and 80-year-old pine stands was analysed. It was confirmed that h/d ratio is good indicator of individual stability of tree against snow damage. Values of h/d ratio over 100 were found for all damaged trees. Results showed that lower initial density itself is not a guarantee of stand stability without subsequent thinning. For studied sites, early thinning (to the top height 5 m) is applicable as a measure to reduce the risk of snow damage. In middle-aged pine stands, the effect of thinning on stability has decreased. Furthermore, this effect is minimal in mature pine stands.
引用
收藏
页码：147 / 157
页数：11
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