Definitions for

**"Mean annual increment"**of growth The total increase in size or volume of individual trees. Or, it can refer to the increase in size and volume of a stand of trees at a particular age, divided by that age in years.

The total increment of trees in a stand up to a given age, divided by that age, often expressed in annual cubic meters of growth per hectare (cubic feet of growth per acre).

the average growth rate of a forest; obtained by dividing the total weight of timber by the age of the forest.