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Filtering by: File Format application/pdf Subject Douglas fir -- Thinning -- Oregon, Western

Response of young Douglas-fir to 16 years of intensive thinning

Creator:

Tappeiner, J. C. (John C.), Bell, John F., Brodie, J. Douglas (John Douglas), 1938-, and Oregon State University. Forest Research Laboratory

Abstract:

A 20-year-old Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] stand in the Oregon Coast Range was thinned from about 1,700 to about 350 trees/ac. Subsequent thinnings, under eight different regimes, occurred at ages 23, 27, 30, and 32. Average net periodic cubic-volume growth was strongly influenced by thinning regime, varying from about...

Resource Type:

Technical Report
Patterns in understory vegetation communities across canopy gaps in young, Douglas-fir forests of western Oregon

Creator:

Fahey, Robert T.

Abstract:

Canopy gap formation is a major factor contributing to maintenance of overstory species diversity and stand structure in forests and may be integral to development of understory shrub and herb layers as well. Acknowledgement of gap formation as a fundamental feature of natural forests has led to consideration of gaps...

Resource Type:

Masters Thesis