长白落叶松,乔木,高达30米,胸径达1米;树皮灰色、暗灰色、灰褐色,纵裂成长鳞片状翅离,易剥落,剥落后呈酱紫红; 枝平展或斜展,树冠塔形。
关键词:落叶松;迹地更新;红松;胡桃楸 长白落叶松(larix olgensis)是我国东北地区主要造林树种之一,目前大部分落叶松人工林进入主伐年龄。
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落叶松在我国北方地区天然分布和人工栽培的主要有兴安落叶松(Lgmelini)、长白落叶松(Lolgensis)、华北落叶松(Lpr incipis—rup--prechti
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并与长白落叶松 Larix olegensis
·2,447,543篇论文数据,部分数据来源于NoteExpress
本文以长白落叶松扦插及扦插苗移栽试验为基础,对大量的影响因素进行了系统研究。
On the basis of experiments of the cuttage propagation and cuttings transplanting of Larix olgensis, a lot of factors which affect the cuttings have been systematically studied.
通过长白落叶松播种苗和移植苗分级造林成活率和生长量的比较研究,建立了苗木质量与造林效果的关系。
The relationship between seedling quality and outplanting performances was established through comparing the survival rate and the growth of seedlings and transplanted seedlings between grades.
同时将这一理论应用到长白落叶松入工林木材图象的处理中。测出了木材的胞壁率,对细胞分子的边缘进行检测。
At same time, this theory was applied in wood anatomical structure image processing, to measure wood cell space ratio and check cell molecular boundary.
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