Canopy is measured according to leaf-area-index (LAI) relative to wall area; for each unit of LAI, sunlight decreases by about half.

雨棚是根据相对于墙体面积的叶面积指数(LAI)来测量的；每单位LAI，日照减少约一半。

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The soil moisture content and leaf area index (LAI) are the critical factors in energy partition process.

在平衡过程中，土壤含水量和叶面积指数(LAI)是决定能量分配的关键因素。

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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。

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