Effects of Initial Spacing on the Stem and Branch Properties and Graded Quality of Picea abies (L.) Karst

被引:54
|
作者
Johansson, Kicki [1 ]
机构
[1] Swedish Univ Agr Sci, Dept Forest Yield Res, S-77073 Garpenberg, Sweden
关键词
Norway spruce; grade; plantations; timber quality;
D O I
10.1080/02827589209382743
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
The effects of spacing on the stem and branch properties of Norway spruce growing on a good soil in southwestern Sweden were evaluated. Butt logs from sample trees were test sawn, and the boards were machine-stress graded and graded according to Swedish export rules. Branch diameter and bole diameter both responded positively to an increase in spacing. Quality, as reflected by stress and export grades, increased in response to a decrease in spacing.
引用
收藏
页码:503 / 514
页数:12
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