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National Center for Ecological Analysis and Synthesis

Project Description

Current estimates of atmospheric growth of key trace gas species are based on scanty measurements of the sources and sinks of these compounds. The terrestrial processes controlling the fluxes of these trace gas have been studied over the past decades, but a coordinated effort to synthesize these studies and to analyze the environmental controlling factors has not been conducted. A critical synthesis of information on the biotic and abiotic controls of trace gas fluxes is needed in order to advance our ability to determine regional estimates of various trace gas compounds. The U.S. TRAce Gas NETwork (TRAGNET) is developing an accessible data base of multi-year trace gas flux data (and ancillary data) from a range of ecosystems across North America, contributed by a number of independent research groups. TRAGNET also includes several trace gas flux models, which have not yet been tested against most of the TRAGNET flux data.


Working Group Participants

Principal Investigator(s)

Dennis S. Ojima, Arvin R. Mosier

Project Dates

Start: May 5, 1997

End: April 24, 1999

completed

Participants

Per Ambus
Risoe National Laboratory
Jean Bogner
Landfills and Inc.
Werner Borken
Busgenweg 2
Rainer Brumme
University Waldernarung
Klaus Butterbach-Bahl
Fraunhofer Institute for Atmospheric Environmental Research
Jeff Q. Chambers
Unknown
Stephen Del Grosso
Colorado State University
Heiner Flessa
Busgenweg 2
Steve Frolking
University of New Hampshire
Peter M. Groffman
Cary Institute of Ecosystem Studies
Melannie Hartman
Colorado State University
Elisabeth A. Holland
National Center for Atmospheric Research
Michael Keller
University of New Hampshire
Jennifer King
University of California, Irvine
Leif Klemedtsson
Dagjamningsgatan 1
Steve Knox
Colorado State University
Changsheng Li
University of New Hampshire
Pamela Matson
Stanford University
Elaine Matthews
National Aeronautics and Space Administration (NASA)
Arvin R. Mosier
US Department of Agriculture (USDA)
Dennis S. Ojima
Colorado State University
Hans Papen
Fraunhofer Institute for Atmospheric Environmental Research
William J. Parton
Colorado State University
Chris Potter
National Aeronautics and Space Administration (NASA)
William S. Reeburgh
University of California, Irvine
William J. Riley
University of California, Berkeley
Ron L. Sass
Rice University
Joshua P. Schimel
University of California, Santa Barbara
Keith A. Smith
University of Edinburgh
Florian Stange
Fraunhofer Institute for Atmospheric Environmental Research
David Valentine
University of Alaska
Louis Verchot
Unknown
Bernadette P. Walter
National Aeronautics and Space Administration (NASA)
Per Weslien
Swedish Environmental Research Institute
Richard Zepp
US Environmental Protection Agency (EPA)

Products

  1. Presentations / 1998

    Modeling of methane production and net emissions: A review of major controls across a management gradient encompassing natural wetlands, rice production systems and landfills

  2. Dissertation or Thesis / 1999

    General models for trace gas flux from denitrification and methane oxidation in soils

  3. Journal Article / 2000

    General CH4 oxidation model and comparisons of CH4 oxidation in natural and managed systems

  4. Journal Article / 2000

    General model for N2O and N2 emissions from soils due to denitrification

  5. Presentations / 1998

    Low-temperature nitrous oxide emissions may contribute significantly to total annual emissions from soils

  6. Presentations / 1998

    Predictive power of annual ecosystem scale estimates of trace gas fluxes

  7. Journal Article / 1998

    Model estimates of methane emission from irrigated rice cultivation of China

  8. Report or White Paper / 1997

    Trace gas meeting report

  9. Data Set / 1999

    Trace gas flux data

  10. Presentations / 1998

    Comparisons of CH4 oxidation in managed and natural ecosystems using the TRAGNET data base

  11. Presentations / 1998

    Modeling soil methane oxidation: Constraints from field observations