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Filtering by: Graduation year 1975 Location H J Andrews Experimental Forest, Oregon, United States, (Vegetation)

Do vigorous young forests reduce streamflow? Results from up to 54 years of streamflow records in eight paired-watershed experiments in the H. J. Andrews and South Umpqua Experimental Forests

Creator:

Perry, Timothy D.

Abstract:

This study quantified the magnitude and timing of summer streamflow deficits in paired-watershed experiments in the Cascade Range of Oregon where mature and old-growth conifer forests were subjected to clearcutting, patch cutting, and overstory thinning treatments in the 1960s and 1970s. Hydrologic effects of clearcutting, small-patch cutting, and overstory thinning...

Resource Type:

Masters Thesis

Full Text:

streamflow (%) in (a) Andrews 7 (60% thin 1975, 40% overstory removal 1985, 12% thin of young
Headwater stream macroinvertebrates of the H.J. Andrews Experimental Forest, Oregon

Creator:

Frady, Charles H.

Abstract:

Recent studies of headwater streams have demonstrated their importance to overall watershed biodiversity, nutrient cycling, and energy flux. However, little attention has been paid to long-term effects of forest harvest on macroinvertebrate communities in headwater streams. This study investigated headwater stream macroinvertebrate communities in the H.J. Andrews Experimental Forest, Oregon,...

Resource Type:

Masters Thesis

Full Text:

(Harr et el. 1975, Hicks et al. 1991), increased algal/biofilm biomass (Murphy et al. 1981, Fuchs et