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Subjects nitrogen Remove constraint nitrogen: nitrogen Subjects atmospheric deposition Remove constraint atmospheric deposition: atmospheric deposition Year 2005 Remove constraint 2005: 2005

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1. Autotrophic Ammonia-Oxidizing Bacteria Contribute Minimally to Nitrification in a Nitrogen-Impacted Forested Ecosystem

Description:: Includes references
Author:: Jordan, Fiona L. , Cantera, J. Jason L. , Fenn, Mark E. , Stein, Lisa Y.
Subject:: photosynthetic bacteria , atmospheric deposition , forest soils , nitrogen , mineralization , nitrification , nitrates , leaching , soil pH , coniferous forests , soil microorganisms , microbial activity , Mediterranean climate , California
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005

2. Effects of season and low-level air pollution on physiology and element content of lichens from the U.S. Pacific Northwest

Description:: Includes references
Author:: Ra, H.S.Y. , Geiser, L.H. , Crang, R.F.E.
Subject:: air pollution , atmospheric deposition , nitrogen , sulfur , nutrients , nutrient content , lichens , nitrate nitrogen , ammonium nitrogen , photosynthesis , light intensity , carotenoids , elements , potassium , sodium , seasonal variation , Washington , Oregon
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005

3. Nitrogen mineralization and nitrification in a mixed-conifer forest in southern California: controlling factors, fluxes, and nitrogen fertilization response at a high and low nitrogen deposition site

Description:: Includes references
Author:: Fenn, M.E. , Poth, M.A. , Terry, J.D. , Blubaugh, T.J.
Subject:: coniferous forests , mixed forests , nitrogen , mineralization , nitrification , nitrogen fertilizers , fertilizer application , atmospheric deposition , forest soils , mineral soils , forest trees , canopy , California
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005