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Filtering by: Subject Forest soils -- Cascade Range Committee Member Cromack, Kermit

The fate of organic and inorganic nitrogen inputs in an old-growth forest of the central Oregon Cascade Range

Creator:

Holub, Scott M.

Abstract:

Forests in the Pacific Northwest receive very little nitrogen through atmospheric deposition and thus studying the nitrogen cycle in this region can provide insights into how the unpolluted nitrogen cycle functions. I examined the fate of organic nitrogen versus inorganic nitrogen and the effect of tamlins on N retention by...

Resource Type:

Dissertation

Full Text:

Organic and Inorganic Nitrogen Inputs in an Old-growth Forest of the Central Oregon Cascade Range
Investigations of runoff production and sedimentation on forest roads

Creator:

Wemple, Beverley C.

Abstract:

Forest roads constructed in steep mountain landscapes have been associated with a number of effects on hydrologic and geomorphic processes. This research examined the effects of forest roads on the flow of water and sediment in drainage basins in the Cascade range of western Oregon. A study conducted at the...

Resource Type:

Dissertation
Ground dwelling beetles in early and late successional forests in the western Cascades of Oregon

Creator:

Heyborne, William H.

Abstract:

The effects of forest cutting on forested systems and the biotic components of those systems has been at the forefront of scientific research. The inventory and monitoring of biodiversity is one technique used for measuring the effects of forest management. Because bioinventory studies are expensive, indicator species are often sought...

Resource Type:

Masters Thesis

Full Text:

. Relationship between soil moisture and beetle abundance (n =9, p = >0.05) in 1999 1-I.J. Andrews forest