Publications

Publications Found: 1437

Soil Co2efflux In Contrasting Boreal Deciduous And Coniferous Stands And Its Contribution To The Ecosystem Carbon Balance
GAUMONT-GUAY, D., BLACK, T. A., MCCAUGHEY, H., BARR, A. G., KRISHNAN, P., JASSAL, R. S., NESIC, Z.

Similar nonsteady-state automated chamber systems were used to measure and partition
soil CO2 efflux in contrasting deciduous (trembling aspen) and coniferous (black spruce
and jack pine) stands located within 100km of each other near the southern edge of the
Boreal forest in Canada. The stands were exposed to similar climate …


Journal: Global Change Biology, Volume 15 (5): 1302-1319 (2009). DOI: 10.1111/j.1365-2486.2008.01830.x Sites: CA-Oas, CA-Obs, CA-Ojp

Influence Of Clouds And Diffuse Radiation On Ecosystem-Atmosphere Co2and Co18o Exchanges
Still, C. J., Riley, W. J., Biraud, S. C., Noone, D. C., Buenning, N. H., Randerson, J. T., Torn, M. S., Welker, J., White, J. W., Vachon, R., Farquhar, G. D., Berry, J. A.

This study evaluates the potential impact of clouds on ecosystem CO2 and CO2 isotope fluxes (“isofluxes”) in two contrasting ecosystems (a broadleaf deciduous forest and a C4 grassland) in a region for which cloud cover, meteorological, and isotope data are available for driving the isotope‐enabled land surface model (ISOLSM). …


Journal: Journal Of Geophysical Research, Volume 114 (G1): (2009). DOI: http://doi.org/10.1029/2007JG000675 Sites: US-ARM

Strong links between teleconnections and ecosystem exchange found at a Pacific Northwest old-growth forest from flux tower and MODIS EVI data
Wharton, S., Chasmer, L., Falk, M., Paw U, K.T.

Variability in three Pacific teleconnection patterns are examined to see if net carbon exchange at a low-elevation, old-growth forest is affected by climatic changes associated with these periodicities. Examined are the Pacific Decadal Oscillation (PDO), Pacific/North American Oscillation (PNA) and El Niño-Southern Oscillation …


Journal: Global Change Biology, Volume 15: 2187-2205 (2009). DOI: 10.1111/j.1365-2486.2009.01952.x Sites: US-Wrc

Environmental Controls On Water Use Efficiency During Severe Drought In An Ozark Forest In Missouri, Usa
YANG, B., PALLARDY, S. G., MEYERS, T. P., GU, L., HANSON, P. J., WULLSCHLEGER, S. D., HEUER, M., HOSMAN, K. P., RIGGS, J. S., SLUSS, D. W.


Journal: Global Change Biology, Volume 16 (8): 2252-2271 (2009). DOI: 10.1111/j.1365-2486.2009.02138.x Sites: US-MOz

Woody Plants Modulate The Temporal Dynamics Of Soil Moisture In A Semi-Arid Mesquite Savanna
Potts, D. L., Scott, R. L., Bayram, S., Carbonara, J.

Climate variability and human activities interact to increase the abundance of woody plants in arid and semi-arid ecosystems worldwide. How woody plants interact with rainfall …


Journal: Ecohydrology, Volume 3 (1): 20-27 (2009). DOI: 10.1002/eco.91 Sites: US-SRM

Regional Co2and Latent Heat Surface Fluxes In The Southern Great Plains: Measurements, Modeling, And Scaling
Riley, W. J., Biraud, S. C., Torn, M. S., Fischer, M. L., Billesbach, D. P., Berry, J. A.

Characterizing net ecosystem exchanges (NEE) of CO2 and sensible and latent heat fluxes in heterogeneous landscapes is difficult, yet critical given expected changes in climate and land use. We report here a measurement and modeling study designed to improve our understanding of surface to atmosphere gas exchanges under very heterogeneous …


Journal: Journal Of Geophysical Research, Volume 114 (G4): (2009). DOI: http://doi.org/10.1029/2009JG001003 Sites: US-ARM

Stand-level gas-exchange responses to seasonal drought in very young versus old Douglas-fir forests of the Pacific Northwest
Wharton, S., Schroeder, M., Bible, K., Falk, M., Paw U, K.T.

This study examines how stand age affects ecosystem mass and energy exchange response to seasonal drought in three adjacent Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) forests. The sites include two early seral (ES) stands (0-15 years old) and an old-growth (OG) (~ 450-500 years old) forest in the Wind River Experiment Forest, …


Journal: Tree Physiology, Volume 29: 959-974 (2009). DOI: 10.1093/treephys/tpp039 Sites: US-Wrc

Physiological Responses Of Red Mangroves To The Climate In The Florida Everglades
Barr, J. G., Fuentes, J. D., Engel, V., Zieman, J. C.

This manuscript reports the findings of physiological studies of red mangrove (Rhizophora mangle L.) conducted from June to August 2001 and from May to June 2003 in the Florida Everglades. In situ physiological measurements were made using environmentally controlled gas exchange systems. The field investigations were carried …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 114 (G02008): n/a-n/a (2009). DOI: 10.1029/2008JG000843 Sites: US-Skr

A Comparison Of Water And Carbon Dioxide Exchange At A Windy Alpine Tundra And Subalpine Forest Site Near Niwot Ridge, Colorado
Blanken, P. D., Williams, M. W., Burns, S. P., Monson, R. K., Knowles, J. F., Chowanski, K., Ackerman, T.


Journal: Biogeochemistry, Volume 95 (1): 61-76 (2009). DOI: 10.1007/s10533-009-9325-9 Sites: US-NR1, US-NR3, US-NR4

Influence Of Vegetation And Seasonal Forcing On Carbon Dioxide Fluxes Across The Upper Midwest, Usa: Implications For Regional Scaling
Desai, A. R., Noormets, A., Bolstad, P. V., Chen, J., Cook, B. D., Davis, K. J., Euskirchen, E. S., Gough, C., Martin, J. G., Ricciuto, D. M., Schmid, H. P., Tang, J., Wang, W.

Carbon dioxide fluxes were examined over the growing seasons of 2002 and 2003 from 14 different sites in Upper Midwest (USA) to assess spatial variability of ecosystem–atmosphere CO2 exchange. These sites were exposed to similar temperature/precipitation regimes and spanned a range of vegetation types typical of the …


Journal: Agricultural And Forest Meteorology, Volume 148 (2): 288-308 (2008). DOI: 10.1016/j.agrformet.2007.08.001 Sites: US-Los, US-PFa, US-Syv, US-WCr, US-Wi0, US-Wi1, US-Wi2, US-Wi3, US-Wi4, US-Wi6, US-Wi8