摘要
冠幅与胸径呈正相关,初植密度直接影响到郁闭的早晚和郁闭时冠幅的大小,找出白桦经济成熟时的胸径与冠幅之间的相关关系,推断最佳初植密度。
The study reveals that the width of canopy is positive correlated with diameter breast height, plantation density directly affect the time of crown closure and the size of canopy. Dependency relationships between the diameter breast height and width of canopy of mature economic birch forest is found out to determine the optimum plantation density.
出处
《林业勘查设计》
2006年第2期65-65,共1页
Forest Investigation Design
关键词
白桦
初植密度
Betula platyphylla Suk. plantation density
