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Filtering by: Creator Ganskopp, David C. (David Conrad) Resource Type Masters Thesis Subject Forest soils

Ammonia-oxidizer and denitrifier populations in boreal forest soils of differing nitrogen availability

Creator:

Burton, Marci S.

Abstract:

Nitrification and denitrification are major biological processes transforming nitrogen (N) in soils to plant available N, highly leachable nitrate (NO₃⁻) and gaseous N oxides. Although many studies in the past have studied N cycling communities, the effect of increased N inputs on ammonia-oxidizer and denitrifier population dynamics is still under...

Resource Type:

Masters Thesis

Full Text:

Abstract approved: David D. Myrold Nitrification and denitrification are major biological
Phytosociology of the ponderosa pine type on pumice soils in the Upper Williamson River Basin, Klamath County, Oregon

Creator:

Volland, Leonard A.

Abstract:

The study was conducted over approximately 191,000 acres in central Klamath County, Oregon. The research had three objectives: first, to describe and classify the seral and near-climax vegetation by using polyclimax principles; secondly, to determine the southern extension of five plant associations and one plant associes as previously described by...

Resource Type:

Masters Thesis

Full Text:

associations and one plant associes as previously described by C. T. Dyrness within the Weyerhaeuser