Influence of stand density on log quality of lodgepole pine
Influence of stand density on log quality of lodgepole pine
复制标题
林分密度对黑松原木品质的影响
DOI：
10.1139/x88-138
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发表时间：
1988
影响因子：
5.7
通讯作者：
J. Long
中科院分区：
文献类型：
--
作者：
L. Ballard;J. Long
我们研究了黑松 (Pinuscontorta) 的林分密度和茎质量特征之间的关系。通过分析来自未管理的轮龄林分的数据，推断了初始林分密度对轮转结束时原木质量的影响。检查的质量特性包括原木枝条直径、锥度、木材密度和边材比例。考虑胸高直径的差异后，只有枝条大小受到林分密度的强烈影响。在每根原木的五个最大树枝的平均值与每公顷的树木数量之间发现了很强的负指数关系。
We examined the relationship between stand density and stem quality characteristics for lodgepole pine (Pinuscontorta). The influence of initial stand density on end of rotation log quality was inferred by analyzing data from unmanaged, rotation-age stands. Quality characteristics examined included first log branch diameters, taper, wood density, and the proportion of sapwood. After differences in diameter at breast height were accounted for, only branch size was strongly influenced by stand density. A strong negative exponential relationship was found between the mean of the five largest branches per first log and number of trees per hectare.