Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Subject Soils -- Nitrogen content -- Oregon -- H.J. Andrews Experimental Forest Advisor Myrold, David D. Peer Reviewed No

Response of soil microbial communities and nitrogen cycling processes to changes in vegetation inputs

Creator:

Brewer, Elizabeth Ann

Abstract:

Changes in the type and amount of plant inputs can occur gradually, as with succession, or rapidly, as with harvesting or wildfire. With global change it is anticipated that both gradual and immediate scenarios will occur at increasing frequency. Changes in vegetation inputs alter the quality and quantity of soil...

Resource Type:

Dissertation

Full Text:

Inputs and Removals Treatments (DIRT) at the H.J. Andrews Experimental Forest
Contributions of ammonia-oxidizing bacteria and archaea to nitrification in forest soils

Creator:

Lu, Xinda

Abstract:

Prior to 2005, ammonia oxidation, the first step of nitrification, was thought mediated mainly by ammonia-oxidizing bacteria (AOB). However, the discovery of Thaumarchaeota carrying the genes coding for the ammonia monooxygenase (AMO) enzyme led to the discovery that ammonia-oxidizing archaea (AOA) also contribute to nitrification. Despite the uptick in studies...

Resource Type:

Masters Thesis

Full Text:

. Franco) at three sites in Oregon (Cascade Head, the H.J. Andrews, and McDonald Forest) that had a soil