Zabowski, "Nutrient composition of Douglasfir
rhizosphere and bulk soil solutions," Plant and Soil, vol.
taxifolia) (Douglas-fir, Douglasfir
) Psiadiapunctulata Asteraceae/Compo Whole plant (DC) Vatke sitae (daisy family) Ptaeroxylon obliquum Ptaeroxylaceae Radlk Ranunculus Ranunculaceae Fruit multifidus Forsk.
Vegetation responses to edge environments in old-growth Douglasfir
Western Hemlock zones, often co-dominated by Douglasfir
(Pseudotsuga menziesii) in areas with a history of fire, are also wet (150-300 cm annual precipitation), somewhat cooler (7-10[degrees]C), but with drier summers (6-9% of total precipitation).
In Florida, yellow cedar, western red cedar, eastern white cedar, western larch, and tamarack all showed similar performance, whereas Douglasfir
decayed substantially faster.
Response of Douglasfir
seedlings to a brief pulse of 15Nlabeled nutrients.
Comparison of Douglasfir
site index and height growth curves in the Pacific Northwest.
(Pseudotsuga menziesii) and bigleaf maple (Acer macrophyllum) are the dominant trees with the presence of grand fir (Abies grandis), western hemlock (Tsuga heterophylla) and western redcedar (Thuja plicata) (Akay et al.
Contrasting microclimates among clearcut, edge, and interior old-growth Douglasfir
25 ha, and each was severely infested with Douglasfir
dwarf mistletoe; however, the severity of the infestations of dwarf mistletoe was not evaluated.