Relationships between soil-water stress and plant-moisture

Field and greenhouse bioassays were used to compare the mycorrhizal associations of Douglas-fir seedlings from undisturbed forests, and nonburned and burned portions of clearcuts on three Sites in the...

Chemical and microbial analyses were made at four seasonal intervals on soil horizons under red alder, conifers, and mixed

In 1957 three Douglas-fir stands (15-, 25-, and 40-year-old age classes) were selected on a tree farm in the Cascade foothills of

Six, recent clear cut areas were selected in the Douglas-fir

The subject of this study was the determination of the changes

The objective of this study was to assess the effects of

Bigleaf maple (Acer iaacrophyllunt) is a deciduous, persistent, sprouting species that frequently accounts for as much as 20% of the basal area in Douglas-fir forests. Because of the lack of knowledge of the...

Douglas-fir and western hemlock growth and stocking were examined on two neighboring clear-cut watersheds in the Western Cascades of Oregon and related to the intensity of burning and logging disturbance,...