摘要
对１１个５年生黑杨无性系的冠层特性进行了研究，供试无性系的冠层特性不存在显著差异．但在不同层次、不同部位间差异显著．垂直分布上的差异主要体现于叶片大小上，而水平分布的的差异则主要体现于叶片数目上．群体总的冠层分布模式为叶面积从上至下，从内到外逐渐增加．
The crown characteristics of eleven five years old black poplar hybrid clones were explored. No significant difference of crown characteristics was found among clones, but great difference existed among different layers and parts within the crown. The difference of the vertical distribution of foliage was greatly attributed to leaf size, while for the horizontal variation of foliage, the leaf number played a great part. The general distribution pattern of crown in population was that the leaf area increased from upper to lower and from inner to outer within the crown.
出处
《应用生态学报》
CAS
CSCD
1998年第4期345-348,共4页
Chinese Journal of Applied Ecology
基金
国家"八.五"科技攻关项目
关键词
冠层特性
空间分布
杨树无性系
Crown characteristics, Spatial distribution, Poplar clones.
