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Filtering by: Subject Cascade Range Advisor Cromack, Kermit jr.

Denitrification potential in forest riparian soils of the western Oregon Cascades : spatial and temporal variation

Creator:

McClellan, Michael H.

Abstract:

Denitrification, the biological or chemical reduction of ionic nitrogen oxide or dinitrogen, has not been widely studied in forest ecosystems despite widespread interest in other facets of the forest nitrogen economy. This study had three main objectives: to determine whether potential for denitrification exists in forest riparian and hill slope...

Resource Type:

Masters Thesis
Biology and chemistry of a meadow-to-forest transition in the Central Oregon Cascades

Creator:

Heichen, Rachel S.

Abstract:

In this study, biological and chemical characteristics were determined for two high-elevation meadow-to-forest transitions located in the Central Oregon Cascades. The chloroform fumigation incubation method (CFIM) was used to determine microbial biomass C(MBC) and the N flush due to fumigation (NF), and meadow values were compared to forest values for...

Resource Type:

Masters Thesis

Full Text:

Experimental Forest (HJA) in the Cascade Mountains were selected as study sites: Carpenter Mountain and
Effects of wildfire burn severity on soil microbial communitiesand invasive plant species in the Cascade Range of Oregon

Creator:

Hebel, Cassie L.

Abstract:

Fire suppression in the last several decades has resulted in unprecedented accumulations of organic matter on the landscape, leading to an increase in large, intense wildfires. This study investigated the soil microbial community (using phospholipid fatty acid analysis) across recently burned forests on the eastern slope of the Cascade Range...

Resource Type:

Masters Thesis

Full Text:

recently burned forests on the eastern slope of the Cascade Range in Oregon to examine the effects this