Polymorphic site index curves for white pine in the southern Appalachians
Site index curves are presented for natural stands of even-aged white pine in the southern Appalachians. The curves are based on measured height-growth trends in 42 stands. Shape of the height-growth curves was shown to change progressively with the level of site index, and these polymorphic trends are incorporated in the finished site-index curves. Comparison of the curves by geographic location, topographic position, and stand density level showed by important differences.