72 Basal area mean tree

Basal area is defined as the area per hectare (usually expressed in m²) which is built by all trees standing on one hectare measured at a height of 1.3 m.

The basal area mean tree is defined by its DBH and its HEIGHT as follows:

  • DBH (quadratic mean diameter):

    Is calculated from the arithmetric mean of the basal area of all trees (or species specific) or directly from the square root of mean quadratic diameter.

  • HEIGHT (height of quadratic mean diameter):

    Is derived as the height from a diameter-height function coresponding to the basal area mean tree diameter.

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