The Leaf Area Index (LAI) is defined as the total area of one-sided leaves per ground surface area.
It is a fundamental property of the plant canopy as it plays a key role in the absorption of solar radiation, through photosynthesis, and thus on the vegetation growth.
LAI can be estimated by ground measurements (see here) or through satellite/airborne sensors. Typically, the LAI goes from 0 to up to 10, where 0 represents non-vegetated areas and 10 very dense vegetated areas.
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