The Bio-Atmospheric N Cycle: N Emissions, Transformations, Deposition, and Terrestrial and Aquatic Ecosystem Impacts II

Monday, 15 December 2014: 10:20 AM-12:20 PM
Chairs:  Stuart B Weiss, Creekside Center for Earth Observation, Menlo Park, CA, United States, Emily M. Elliott, University of Pittsburgh, Pittsburgh, PA, United States, Meredith Galanter Hastings, Brown Univ-Geological Sciences, Providence, RI, United States and Rebecca Ryals, Brown University, Providence, RI, United States
Primary Conveners:  Emily M. Elliott, University of Pittsburgh, Pittsburgh, PA, United States
Co-conveners:  Stuart B Weiss, Creekside Center for Earth Observation, Menlo Park, CA, United States
OSPA Liaisons:  Emily M. Elliott, University of Pittsburgh, Pittsburgh, PA, United States

Abstracts Submitted to this Session:

10:20 AM
Reviewing Landmark Nitrogen Cap and Trade Legislation in New Zealand's Taupo Catchment: What Have We Learned after 5+ Years?
W Troy Baisden, GNS Science-Institute of Geological and Nuclear Sciences Ltd, Lower Hutt, New Zealand and David Philip Hamilton, University of Waikato, Hamilton, New Zealand
10:35 AM
NH3 Emission from Fertilizer Application: A Collaborative Study in the Midwestern U.S.
LaToya Myles1, Sotiria Koloutsou-Vakakis2, Carl Bernacchi3, Christopher Lehmann4, Rick D Saylor5, Mark Heuer6, Daryl Sibble7, Jason Anthony Caldwell7, Srinidhi Balasubramanian8, Andrew Joseph Nelson8 and Mark J Rood9, (1)NOAA Oak Ridge, Oak Ridge, TN, United States, (2)Univ of IL--Civil & Envir Engr, Urbana, IL, United States, (3)Global Change and Photosynthesis Research Unit, Agricultural Research Service, USDA, Urbana, IL, United States, (4)Illinois State Water Survey, National Atmospheric Deposition Program, Champaign, IL, United States, (5)NOAA Air Resources Laboratory, Oak Ridge, TN, United States, (6)NOAA/ATDD, Oak Ridge, TN, United States, (7)Florida Agricultural and Mechanical University, Tallahassee, FL, United States, (8)University of Illinois at Urbana Champaign, Urbana, IL, United States, (9)University of Illinois, Urbana, IL, United States
10:50 AM
Reactive Nitrogen Fluxes over Peatland in Response to the Atmospheric Burden of Intensive Agriculture
Christian Brummer1, Undine Richter1, Miriam Hurkuck1, Jean-Pierre Delorme1, Jeremy J. Smith1 and Werner Leo Kutsch2, (1)Johann Heinrich von Thünen Institute, Braunschweig, Germany, (2)ICOS Headoffice, Helsinki, Finland
11:05 AM
Teasing Apart the Effects of Atmospheric Nitrogen Deposition from Grazing and Drought in Vernal Pool Wetlands and Adjacent Grassland
Marilyn L Fogel, David N Araiza, Bobby J Nakamoto, Maria C Vega, Christina J Bradley and Christopher W Swarth, University of California Merced, Merced, CA, United States
11:20 AM
Mining Environmental Data from a Coupled Modelling System to Examine the Impact of Agricultural Management Practices on Groundwater and Air Quality
Valerie Garcia1, Ellen J Cooter1, Brandon Hayes1, Mark S. Murphy1 and Jesse O Bash2, (1)U.S. EPA, RTP, NC, United States, (2)U.S. EPA, NERL, RTP, NC, United States
11:35 AM
Ammonia Surface-Atmosphere Exchange in the Arctic Marine Boundary Layer
Jennifer G Murphy1, Greg Wentworth1, Jean-Eric Tremblay2, Jonathan Gagnon2, Jean-Sebastien Côté2 and Isabelle Courchesne2, (1)University of Toronto, Chemistry, Toronto, ON, Canada, (2)Laval University, Biologie, Quebec City, QC, Canada
11:50 AM
Soil nitrogen gas fluxes during woody legume encroachment: Does encroachment increase gaseous losses?
Fiona Soper1, Peter M Groffman2 and Jed P Sparks1, (1)Cornell University, Ithaca, NY, United States, (2)Cary Inst Ecosystem Studies, Millbrook, NY, United States
12:05 PM
Global Patterns of the Isotopic Composition of Soil and Plant Nitrogen
Ronald Amundson, University of California Berkeley, Berkeley, CA, United States and Kyungsoo Yoo, Univ of MN-Soil, Water&Climate, St. Paul, MN, United States
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