A modified density management diagram for coastalDouglas-fir
West. J. Appl. For.
Density management diagrams (DMD) of the type pioneered by Japanese foresters (Ando 1968) were introduced to North American forestry when Drew and Flewelling (1979) published a diagram for coast Douglas-fir (Pseudotsuga menziesii var. menziesii). DMDs are essentially models of stand average dimensional relationships. Foresters have used simple two-parameter stocking guides for years (Reineke 1933, Gingrich 1967, Wilson 1979), but the inclusion of additional size parameters, particularly height, greatly improves the utility of these charts.
Long, J.N., J.B. McCarter and S.B. Jack. 1988. A modified density management diagram for coastal Douglas-fir. West. J. Appl. For. 3:88-89.