Height-Diameter Equations for Select New Hampshire Tree Species

Height-diameter equations are important in modeling forest structure and yield. Twenty-seven height-diameter equations were evaluated for eight tree species occurring in the northern hardwood forest of New Hampshire using permanent plot data from the Bartlett Experimental Forest. Selected models with associated coefficients are presented for American beech, eastern hemlock, paper birch, red maple, red spruce, sugar maple, white ash, yellow birch, and all 16 species combined.