【摘 要】
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对福建省连城邱家山国有林场经营区的秃杉、厚朴的树冠圆满度与胸径、树高、材积、形数等指标的关系进行调查研究。结果表明:2个树种的树冠圆满度均与胸径、树高、材积呈负相
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对福建省连城邱家山国有林场经营区的秃杉、厚朴的树冠圆满度与胸径、树高、材积、形数等指标的关系进行调查研究。结果表明:2个树种的树冠圆满度均与胸径、树高、材积呈负相关,与形数呈正相关。其中秃杉的树冠圆满度与树高、材积相关关系显著,而与胸径、形数无显著相关关系;厚朴的树冠圆满度与胸径、树高、材积、形数均无显著相关关系。秃杉树冠圆满度的大小对秃杉生长影响较大,而对干形影响较小;厚朴树冠圆满度对其生长和干形影响均较小。
The relationship between the crown fullness and the diameter at breast height, height, volume and shape of Taiwania flousiana and Magnolia officinalis in the management area of Qiu Jiashan State-owned Forest Farm in Liancheng City, Fujian Province was investigated. The results showed that the crown success of the two species was negatively correlated with DBH, tree height and volume, and positively correlated with the shape. Among them, the crown degree of Taiwania flousiana has significant correlation with tree height and volume, but no significant correlation with crown diameter and shape number. The crown degree of magnolia grandis had no significant correlation with DBH, tree height, volume and shape. The size of canopy crown had a greater impact on the growth of Taiwania flousiana, but had less effect on dryness. The degree of fullness of canopy crown had less effect on its growth and dryness.
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