Wednesday, August 8, 2007: 5:00 PM-6:30 PM
Exhibit Halls 1 and 2, San Jose McEnery Convention Center
PS 41 - Cycling - nitrogen
PS 41-15		N2O flux in a semiarid grasslands depends upon rainfall event size, N addition, and soil microsite Caitlin C. Smith, Mt. Holyoke College, Chelsea L. Crenshaw, University of New Mexico, Joseph E. Fargione, Purdue University
PS 41-16		Grassland and forest soil nitrogen transformations and microbial function in the North American Midwest Lisa K. Tiemann, University of Kansas, Sharon A. Billings, University of Kansas
PS 41-17		The response of gross nitrogen mineralization and nitrification to long and short-term changes in moisture and temperature: The relative roles of soil climate, chemistry, and microbes Damon C. Bradbury, University of California at Berkeley, Mary K. Firestone, University of California
PS 41-18		AAP1 functions in uptake of neutral amino acids and glutamate by Arabidopsis roots Janet Chen, Washington State University, Yong-Hwa Lee, Washington State University, Justin Foster, Washington State University, Mechthild Tegeder, Washington State University
PS 41-19		Effects of tree species and nitrogen fertilization on soil phosphorus concentrations Matthew P. Weand, University of Kentucky, Mary A. Arthur, University of Kentucky, Gary M. Lovett, Institute of Ecosystem Studies, Kathleen C. Weathers, Institute of Ecosystem Studies
PS 41-20		Looking for hotspots of nitrogen cycling in an alpine-subalpine watershed Anthony Darrouzet-Nardi, University of Colorado at Boulder
PS 41-21		Does soil organic matter type influence nitrogen retention? Marissa Weiss, Cornell University, Christine Goodale, Cornell University
PS 41-22		Elevated CO2 increases long-term N mineralization and plant N uptake in a semiarid grassland: results from a five-year 15N tracer study Feike A. Dijkstra, USDA-ARS, Elise Pendall, University of Wyoming, Arvin R. Mosier, USDA-ARS (retired), Jennifer Y. King, University of Minnesota, Daniel G. Milchunas, Colorado State University, Jack A. Morgan, USDA-ARS
PS 41-23		Fate of simulated atmospherically deposited nitrogen in a plant-soil mesocosm Wenwen Wang, State University of New York - Binghamton, Weixing Zhu, State University of New York - Binghamton
PS 41-24		Abiotic reactions play a role in nitrate retention in three agroecosystems Barbara E. Fricks, Penn State University, Jason P Kaye, Penn State University, Rita Seidel, The Rodale Institute
PS 41-25		Long-term effects of cattle grazing on nitrogen dynamics in a montane riparian ecosystem Agnieszka Przeszlowska, Colorado State University, M.J. Trlica, Colorado State University
PS 41-26		Microbial community structure and nutrient cycling dynamics in soils exposed to chronic warming and nitrogen additions: Preliminary results Alexandra R. Contosta, University of New Hampshire, Serita D. Frey, University of New Hampshire
PS 41-27		The role of phyllosphere microorganisms in nitrogen transformations in the canopies of black spruce plantations in northern Ontario, Canada Carrie L. Woods, University of Guelph, Shelley L. Hunt, University of Guelph, Andrew M. Gordon, University of Guelph
PS 41-28		Plasticity in preferential nitrogen uptake by perennial woody shrubs Francis H. Bozzolo, San Diego State University, David A. Lipson, San Diego State University, Janet Franklin, San Diego State University
PS 41-29		Ammonium fixation dynamics in sub-grade decomposed granite Daniel E. Rider, UC Davis, Re O'Dell, UC Davis, Dg McGahan, UC Davis, Vp Claassen, UC Davis
PS 41-30		Linking changes in plant growth, soil structure, and N-transformers in a soybean agroecosystem under elevated CO2 and O3 Haegeun Chung, University of California-Davis, Kate M. Scow, University of California-Davis, Michael J. Sadowsky, University of Minnesota, Chris van Kessel, University of California-Davis, Johan Six, University of California-Davis
PS 41-31		The impact of low-head dams on riverine and riparian nitrogen dynamics Lauren E. McGee, Ohio State University, Virginie Bouchard, Ohio State University

See more of Contributed Oral and Poster Abstracts

See more of The ESA/SER Joint Meeting (August 5 -- August 10, 2007)