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Filtering by: Alternative title ssim Extension bulletin 228 Advisor Muir, Patricia S. Committee Member McCune, Bruce

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:

trenching effect on canopy environment (and by extension root density) may explain why other researchers
Subalpine revegetation on backcountry campsites near Tuolumne Meadows, Yosemite National Park, California : third year results

Creator:

Moritsch, Barbara J.

Abstract:

The National Park Service initiated a backcountry campsite restoration project in 1987 to restore native vegetation on severely degraded campsites in three subalpine lake basins in Yosemite National Park. Restoration treatments included soil scarification, transplanting, manual seeding and site protection. Eight of the treated campsites were monitored in 1990 to...

Resource Type:

Masters Thesis

Full Text:

were taken to the Soil Conservation Service in Lockeford, California for division and extension