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Filtering by: Committee Member Hibbs%2C David E. Subject Old growth forest ecology -- Oregon

Tree species-soils relationships in old-growth forests of the Oregon Coast Range

Creator:

Cross, Alison

Abstract:

Tree species directly and indirectly affect soil nutrient cycles. I sought to characterize soils and foliage associated with four common canopy tree species (Douglas-fir, western hemlock, western redcedar, and bigleaf maple) in mixed-species old-growth forests of the Oregon Coast Range and to determine whether and how soils differ among the...

Resource Type:

Masters Thesis

Full Text:

QuikChem 8000 flow-injection autoanlyzer (QuikChem Methods 12-107-06-2-E and 12-107-04-1-H, Lachat
Structure and development of old-growth Douglas-fir in central western Oregon

Creator:

Poage, Nathan Jeremy

Abstract:

The tree species and size structure of 9l old-growth forests dominated by Douglas-fir in central western Oregon was characterized using complete inventories of all trees larger than 20cm dbh over a mean area of 17.1ha at each site. Douglas-fir accounted for over 75% of the total average basal area (39.1...

Resource Type:

Dissertation