B11O:
The Bioatmospheric N Cycle: N Emissions, Transformations, Deposition, and Terrestrial and Aquatic Ecosystem Impacts I


Session ID#: 8602

Session Description:
Biogenic and anthropogenic emissions of reactive nitrogen (Nr) are transported, chemically transformed, and deposited on land and waters, altering structure and function of ecosystems and degrading environmental quality.  Estimating atmospheric N emissions and deposition, and evaluating ecosystem responses require a diverse array of measurements and models that link processes at multiple scales.  We seek presentations on physical, chemical, biological, and anthropogenic processes that drive local, regional and global nitrogen exchange, impacts on ecosystems, carbon uptake, nitrogen export, biodiversity, human health, and policy implications and responses.
Primary Convener:  Stuart B Weiss, Creekside Center for Earth Observation, Menlo Park, CA, United States
Conveners:  Meredith Galanter Hastings, Brown University, Department of Earth, Environmental and Planetary Sciences, and Institute at Brown for Environment and Society, Providence, RI, United States and Rebecca Ryals, Brown University, Providence, RI, United States
Chairs:  Meredith Galanter Hastings, Brown University, Department of Earth, Environmental and Planetary Sciences, and Institute at Brown for Environment and Society, Providence, RI, United States and Stuart B Weiss, Creekside Center for Earth Observation, Menlo Park, CA, United States
OSPA Liaison:  Rebecca Ryals, Brown University, Providence, RI, United States

Cross-Listed:
  • A - Atmospheric Sciences
  • GC - Global Environmental Change
  • H - Hydrology
  • OS - Ocean Sciences
Co-Sponsor(s):
  • IGBP: International Geosphere-Biosphere Programme -
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0426 Biosphere/atmosphere interactions [BIOGEOSCIENCES]
0469 Nitrogen cycling [BIOGEOSCIENCES]
0478 Pollution: urban, regional and global [BIOGEOSCIENCES]

Abstracts Submitted to this Session:

From Gene Expression to the Earth System: Isotopic Constraints on Nitrogen Cycling Across Scales (Invited) (82397)
Benjamin Z Houlton, University of California Davis, Department of Land, Air and Water Resources, Davis, CA, United States
The Five-Year Fate of a 15N Tracer in a Mixed Deciduous Forest: Retention, Redistribution, and Differences by Mycorrhizal Association (83623)
Christine L Goodale, Cornell University, Ecology and Evolutionary Biology, Ithaca, United States
Carbon And Nitrogen Storage Of A Mediterranean-Type Shrubland In Response To Post-Fire Succession And Long-Term Experimental Nitrogen Deposition (71140)
George L Vourlitis, California State University San Marcos, Biology, San Marcos, CA, United States and Cloe Suzanne Hentz, California State University San Marcos, San Marcos, CA, United States
Controls on Soil and Stream Nitrogen Cycling in a Mountain-to-Urban Watershed (76033)
Samantha R Weintraub-Leff, University of Utah, Salt Lake City, UT, United States, Gabriel J Bowen, University of Utah, Geology & Geophysics, Salt Lake City, United States, Steven J Hall, Iowa State University, Department of Ecology, Evolution, and Organismal Biology, AMES, United States, Paul D Brooks, University of Utah, Dept. of Geology and Geophysics, Salt Lake City, UT, United States, James R Ehleringer, Univ Utah, Salt Lake City, UT, United States and David R Bowling, University of Utah, School of Biological Sciences, Salt Lake City, United States
Wetting-induced pulses produced unexpectedly high emissions of N2O and NOx in a desert ecosystem (Invited) (77586)
Jennifer R Eberwein1, Chelsea Carey1, Emma L Aronson2 and Darrel Jenerette1, (1)University of California Riverside, Riverside, CA, United States, (2)University of California Riverside, Riverside, United States
Isotopic Monitoring of N2O Emissions from Wastewater Treatment: Evidence for N2O Production Associated with Anammox Metabolism? (60227)
Eliza Jean Harris1, Pascal Wunderlin2, Adriano Joss3, Lukas Emmenegger4, Marco Kipf2, Benjamin Wolf5 and Joachim Mohn6, (1)Swiss Federal Institute for Materials Science and Technology, Dubendorf, Switzerland, (2)EAWAG Swiss Federal Institute of Aquatic Science and Technology, Duebendorf, Switzerland, (3)EAWAG Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland, (4)Empa, Swiss Federal Laboratories for Materials Science and Technology, Duebendorf, Switzerland, (5)Karlsruhe Institute of Technology, IMK-IFU, Garmisch, Germany, (6)Empa, Laboratory for Air Pollution / Environmental Technology, Dübendorf, Switzerland
Tracking historical increases in nitrogen-driven crop production possibilities (74508)
Nathan Mueller, University of California, Irvine, Irvine, CA, United States, Luis Lassaletta, Netherlands Environmental Assessment Agency, The Hague, Netherlands, Gilles Billen, Sorbonne Université, UPMC, UMR 7619 METIS, Paris, France, Josette Garnier, Sorbonne Université, CNRS, EPHE, UMR 7619 METIS, Paris, France and James S Gerber, University of Minnesota Twin Cities, Minneapolis, MN, United States

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