217 Symposium--Challenges in Measuring Greenhouse Gas Emissions From Soil

Oral Session
ASA Section: Environmental Quality This symposium will highlight methodological advances and provide guidance for dealing with commonly faced problems. Topics to be covered would include topics such as advantages/disadvantages of newer technologies (i.e. micro-metrological techniques for nitrous oxide measurement, application of photoacoustic and FTIR gas monitors, and automated chamber systems), determining appropriate instrumentation and chamber designs, and dealing with spatial and temporal variability in emissions.


Soil Carbon and Greenhouse Gas Emissions Community
Environmental Quality, Soil & Water Management & Conservation
Global Climate Change Community
Tuesday, October 23, 2012: 7:55 AM-11:30 AM
Duke Energy Convention Center, Room 264, Level 2

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Community Leader:
Diane E. Stott
Curtis J. Dell
Peter Motavalli
8:00 AM
Advances in Soil CO2 Flux Measurement.
Dayle McDermitt, LI-COR Biosciences, Inc.; Liukang Xu, LI-COR Biosciences, Inc.; Rodney Madsen, LI-COR inc.; Tanvir Demetriades-Shah, LI-COR Biosciences, Inc.; Richard Garcia, LI-COR Biosciences, Inc.; Jonathan Welles, LI-COR Biosciences, Inc.
8:30 AM
Evaluation of Photoacoustic Infrared Spectroscopy for Simultaneous Measurement of N2O and CO2 Gas Concentrations and Fluxes At the Soil Surface.
Javed Iqbal, Iowa State University; Michael J. Castellano, Iowa State University; Timothy B. Parkin, USDA-ARS
9:00 AM
Dynamics of CO2 and N2O Emissions in the Wheat System: Continuous Automated Irga Monitoring Study.
Kirill Kostyanovsky, Washington State University; David Huggins, USDA-ARS; Claudio Stockle, Washington State University; Jeffrey L. Smith, USDA-ARS; David Brown, Washington State University; William Pan, Washington State University
9:30 AM
9:45 AM
Nitrogen Losses From Application of Side-Dress UAN: Near-Continuous NH3 and N2O Emissions.
Richard H. Grant, Purdue University; Matthew T. Boehm, Purdue University; Clifford J. Johnston, Purdue University
10:15 AM
Comparison of Four Approaches for Estimating Soil-Atmosphere Trace Gas Fluxes.
Hero Gollany, USDA-ARS; Robert W. Polumsky, USDA-ARS; Chunmei Yao, OSU
11:15 AM
11:30 AM