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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:

menziesii) forests on the west side of the Cascade Mountains, Oregon, USA. I studied the belowground
Drivers of variability in transpiration and implications for stream flow in forests of western Oregon

Creator:

Moore, Georgianne W.

Abstract:

I compared transpiration among different types of forest stands in the western Cascades of Oregon. The three major questions were: 1) How does transpiration compare between a young and old stand and why? 2) Does diversity of overstory trees affect transpiration? and 3) How is transpiration related to stream flow?...

Resource Type:

Dissertation