Fig. 4

Fifty year projections of total basal area (m²∙ha^–1) of common forest types using the developed equations and the expansion factor method (left) or the optimal cutpoint method (right), respectively. Each forest type was initialized with 500 stems per ha of 5 cm diameter at breast height. Northern hardwoods was an equal mixture of American beech, black cherry, red maple, sugar maple, and yellow birch. Mixedwood was red spruce, balsam fir, eastern hemlock, and red maple with some American beech, white pine, and yellow birch. Hardwood dominated mixedwood was American beech, eastern hemlock, red spruce, sugar maple, and yellow birch. Spruce–fir was an equal mixture of red spruce and balsam fir