Publications

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Publications Found: 15

Climatic And Phenological Controls On Coherent Regional Interannual Variability Of Carbon Dioxide Flux In A Heterogeneous Landscape
Desai, A.R.

The climate sensitivity of plant seasonal life cycles, or phenology, may impart significant carbon cycle feedbacks on climatic change. Analysis of interannual ecosystem carbon exchange provides one way to assess this climate sensitivity. Multiyear eddy covariance carbon dioxide flux observations from five different ecosystems (deciduous …


Journal: Journal Of Geophysical Research, Volume 115 (G00J02): n/a-n/a (2010), ISBN . DOI: 10.1029/2010JG001423 Sites: US-Los, US-PFa, US-Syv, US-WCr

Ecosystem Respiration And Its Components In An Old-Growth Forest In The Great Lakes Region Of The United States
Tang, J., Bolstad, P. V., Desai, A. R., Martin, J. G., Cook, B. D., Davis, K. J., Carey, E. V.

Ecosystem respiration and its components are sensitive to age, species, stand structure, and environmental conditions, and substantially influence net ecosystem productivity. We measured ecosystem respiration and component respiration including soil, woody debris, stem and leaf respiration in old-growth hardwood-dominated and hemlock-dominated …


Journal: Agricultural And Forest Meteorology, Volume 148 (2): 171-185 (2008), ISBN . DOI: 10.1016/j.agrformet.2007.08.008 Sites: US-Syv

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), ISBN . 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

Sap Flux-Upscaled Canopy Transpiration, Stomatal Conductance, And Water Use Efficiency In An Old Growth Forest In The Great Lakes Region Of The United States
Tang, J., Bolstad, P. V., Ewers, B. E., Desai, A. R., Davis, K. J., Carey, E. V.

Combining sap flux and eddy covariance measurements provides a means to study plant stomatal conductance and the relationship between transpiration and photosynthesis. We measured sap flux using Granier-type sensors in a northern hardwood-dominated old growth forest in Michigan, upscaled to canopy transpiration, and calculated canopy …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 111 (G2): n/a-n/a (2006), ISBN . DOI: 10.1029/2005JG000083 Sites: US-Syv

Comparing Net Ecosystem Exchange Of Carbon Dioxide Between An Old-Growth And Mature Forest In The Upper Midwest, Usa
Desai, A. R., Bolstad, P. V., Cook, B. D., Davis, K. J., Carey, E. V.

Old-growth forests are often assumed to exhibit no net carbon assimilation over time periods of several years. This generalization has not been typically supported by the few whole-ecosystem, stand-scale eddy-covariance measurements of carbon dioxide exchange in old-growth forests. An eddy-flux tower installed in a >300-year-old …


Journal: Agricultural And Forest Meteorology, Volume 128 (1-2): 33-55 (2005), ISBN . DOI: 10.1016/j.agrformet.2004.09.005 Sites: US-Syv, US-WCr