25th Agricultural and Forest Meteorology/12th Air Pollution/4th Urban Environment

Session 4: ARS Network

Tuesday, 21 May 2002: 8:30 AM-11:15 AM
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Organizer:  Douglas Johnson, USDA/ARS
Papers:
  8:30 AM
4.1
The USDA-ARS CO2 flux network: Variation in rangeland CO2 flux across years and ecosystems
Tony S. Svejcar, USDA/ARS, Burns, OR; and B. Dugas, H. Mayeux, D. A. Johnson, A. Frank, T. Gilmanov, R. Angell, J. Morgan, P. Sims, J. A. Bradford, N. Z. Saliendra, W. E. Emmerich, and M. Haferkamp

Poster PDF (68.5 kB)
  8:45 AM
4.2
Eddy covariance and Bowen ratio Estimatesof water vapor and CO2 fluxes above a crested wheatgrass
Larwrence E. Hipps, Utah State University, Logan, UT; and S. Ivans, S. Ivans, D. A. Johnson, and N. Z. Saliendra

Poster PDF (143.7 kB)
  9:00 AM
4.3
Carbon dioxide fluxes over a tallgrass prairie in central Texas
William A. Dugas, Texas Agricultural Experiment Station, Temple, TX

  9:15 AM
4.4
Initial impacts of overgrazing on carbon dioxide flux on a southern mixed-grass prairie
Phillip L. Sims, USDA/ARS, Woodward, OK; and J. A. Bradford

Poster PDF (24.0 kB)
  9:30 AM
4.5
Annual CO2 fluxes above desert shrub and grass plant communities in Arizona
William E. Emmerich, USDA/ARS, Tucson, AZ

  9:45 AM
4.6
Annual CO2 fluxes above a sagebrush-steppe ecosystem in eastern Idaho
Douglas A. Johnson, USDA/ARS Forage and Range Research Laboratory, Logan, UT; and N. Z. Saliendra and T. G. Gilmanov

Poster PDF (40.9 kB)
  10:00 AM
4.7
Annual carbon dioxide fluxes on native sagebrush rangeland in eastern Oregon
Raymond F. Angell, USDA/ARS, Burns, OR; and T. J. Svejcar, J. D. Bates, and T. G. Gilmanov

Poster PDF (72.9 kB)
  10:15 AM
4.8
CO2 losses during the cold period above sagebrush-steppe ecosystems in Idaho and Oregon
Tagir G. Gilmanov, South Dakota State University, Brookings, SD; and D. A. Johnson, N. Z. Saliendra, T. Svejcar, and R. F. Angell

Poster PDF (36.6 kB)
  10:30 AM
4.9
Rangeland CO2 fluxes: Implications of results from the USDA-ARS Flux Network
Herman Mayeux, USDA/ARS, El Reno, OK; and W. A. Dugas, T. Svejcar, D. A. Johnson, A. Frank, R. Angell, J. Morgan, P. Sims, W. E. Emmerich, and M. Haferkamp

Poster PDF (73.4 kB)
  10:45 AM
4.6a
Coffee Break

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