leaf canopy 枝叶冠盖 ; 林冠 ; 叶覆盖
Leaf Canopy Radius 叶冠半径
closing leaf canopy 林冠郁闭
Needle leaf canopy 杉林冠层
opening-out of leaf canopy 林冠疏开
Leaf and canopy 冠层与叶片
The Leaf Angle Distribution (LAD) and Leaf Area Index (LAI) are important descriptors of the vegetation canopy.
叶面倾角分布（LAD）和叶面积指数（LAI）是植被冠层结构的重要参量。
Leaf area index (LAI) is a crucial parameter of vegetation canopy structure and controls a number of biophysical processes of vegetation.
叶面积指数(LAI)是植被冠层结构的一个重要参数，它的改变标志着植被发生了生物物理变化。
The result showed that the light distribution in the canopy were obviously affected by the leaf area index (LAI), the structure of canopy, solar radiation and its apparent movement, etc.
结果表明：梨树叶幕光能分布状况直接受叶面积系数、树冠结构、太阳位置及光强的影响。
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