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Filtering by: Subject Plant canopies Committee Member Gray, Andy License All rights reserved Resource Type Dissertation

Understory herb and shrub responses to root trenching, pre-commercial thinning, and canopy closure in Douglas-fir forest of the western Cascades, Oregon

Creator:

Lindh, Briana C.

Abstract:

This thesis examines factors limiting understory herb presence and flowering in young second-growth Douglas-fir (Pseudotsuga menziesii) forests on the west side of the Cascade Mountains, Oregon, USA. I studied the belowground effects of canopy trees on understory herbs and shrubs in old-growth forests using trenched plots from which tree roots...

Resource Type:

Dissertation

Full Text:

gaps had about 30 percentage points higher plant cover than trenched plots under closed canopy