Response of Pacific Yew (Taxus brevifolia) to Partial Removal of the Overstory

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Growth response of Pacific yew (Taxus brevifolia) to canopy disturbance or partial removal is undocumented. Ten year radial increment growth was determined from cores of yew stems in adjacent intact and partially harvested stands of Douglas-fir (Pseudotsuga menziesii) in the central Oregon Cascades. The harvested stand had approximately half of its overstory trees removed in 1978. In the intact stand, 10 yr growth increment after 1978 averaged 0.9 mm less than the pre-1978 increment; in the partially harvested stand, the post-1978 10 yr increment averaged 4.7 mm more than the earlier one. This case study in the response of Pacific yew growth rate to partial overstory removal suggests that managers can preferentially retain these trees in select areas to encourage older forest characteristics or supplies for medicinal products. West. J. Appl. For. 12(2):41-43.

Document Type: Journal Article

Affiliations: USDA Forest Service, Pacific Northwest Research Station, Corvallis, OR 97331

Publication date: April 1, 1997

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Western Journal of Applied Forestry covers the western United States, including Alaska, and western Canada; WJAF will also consider manuscripts reporting research in northern Mexico that has potential application in the southwestern United States.
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