The purpose of this thesis was to develop a suitable
multiple regression equation for making estimates of diameter
inside bark at various heights up the bole in
Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)tree.
Data on 237 and 302 trees from Black Rock Forest Management
Research Area, Polk County, Oregon, and scattered...
Two studies were undertaken in search of a method or methods which might improve the survival of planted Douglas-fir seedlings on severe sites. The first, or preliminary study involved the planting of 2-0 Douglas-fir seedlings on southerly aspects, using nine techniques, including a control. The second, or main study involving...