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Filtering by: Subject Ceanothus Degree Field Forest Science

Seasonal estimates of nitrogen fixation by Alnus rubra and Ceanothus species in western Oregon forest ecosystems

Creator:

Kim, Dong Yeob

Abstract:

Two case studies of 5 ecosystems were used to examine the nitrogen fixation rate of red alder (Alnus rubra Bong.), varnishleaf (Ceanothus velutinus var. laevigatus (Hook.) T. & G.), deerbrush (C. i ntegerrimus H. & A.), and snowbrush (C. velutinus var. velutinus Dougl. Ex Hook). The first case study assayed...

Resource Type:

Masters Thesis

Full Text:

Nitrogen Fixation by Alnus rubra and Ceanothus Species in Western Oregon Forest Ecosystems Abstract
Study of some biological and nutritional factors that influence nodulation by Frankia on red alder (Alnus rubra) and snowbrush (Ceanothus velutinus) within three age-class Douglas-fir forests in H.J. Andrews Experimental Forest, Oregon

Creator:

Rojas-Melo, Nestor S.

Abstract:

Bioassays using red alder and snowbrush plants grown in soils collected from a clearcut, a young Douglas-fir plantation, and an old-growth stand were conducted. Sites are located at the Andrews Experimental Forest, Oregon. In the first bioassays, more alder than snowbrush plants survived and nodulated. Of the plants that survived,...

Resource Type:

Dissertation