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Filtering by: Subject Cascade Range Decade 1990-1999 Subject Forest ecology -- Oregon

Fire history, fire regimes, and development of forest structure in the central western Oregon Cascades

Creator:

Weisberg, Peter J.

Abstract:

Fire history and fire regimes were reconstructed for a 450 km² area in the central western Oregon Cascades, using tree-ring analysis of fire scars and tree origin years at 137 sampled clearcuts. I described temporal patterns of fire frequency, severity, and size, and interpreted topographic influences on fire frequency and...

Resource Type:

Dissertation
Similarities in understory vegetation composition between unthinned, thinned and old-growth Douglas fir stands in western Oregon

Creator:

Mayrsohn, Cheryl

Abstract:

Forest stands were studied to determine if old-growth forest structure could be mimicked in younger stands via overstory manipulation. Cover and species composition of understory plants were systematically sampled in sixteen thinned second-growth stands and sixteen adjacent unthinned second-growth Douglas fir (Pseudotsuga menziesii (Mirabel) Franco.) stands. The stands were thinned...

Resource Type:

Masters Thesis

Full Text:

Location of the study sites in the Coast Range and Cascade Mountains of Oregon 9 2 Layout of plot 14 3