Basal area
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Basal area is the term used in forest management that defines the area of a given section of land that is occupied by the cross-section of tree trunks and stems at their base.
In most countries, this is usually a measurement taken at a person's breast height (1 - 1.5 metres) above the ground and includes the entire diameter of every tree, including the bark. Measurements are usually made for 1 hectare of land for comparison purposes to examine a forest's productivity and growth rate.
