Crown length variance (chr_VarCrownHeight)
The variance of the values of the crown lenght across 10 measured adult dominant or co-dominant trees sampled either inside or in the vicinity of the representative circular plot with a radius of 15 m. The crown lenght is calculated from the [total height] value subtracted from the [Basal crown height] value. It corresponds to the healthy and functional green crown envelope lenght.
The variance of the crown lenght across all measured trees
Type: float | Range: -
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