Session 4 |
| | ARS Network |
| | Organizer: Douglas Johnson, USDA/ARS, Logan, UT
|
| 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 |
| 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 |
| 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 |
| 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 |
| 10:00 AM | | Coffee Break
|
| 10:30 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 |
| 10:45 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 |
| 11:00 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 |