Publications

Publications Found: 1437

Decoupling The Influence Of Leaf And Root Hydraulic Conductances On Stomatal Conductance And Its Sensitivity To Vapour Pressure Deficit As Soil Dries In A Drained Loblolly Pine Plantation
Domec, J., Noormets, A., King, J. S., Sun, G., Mcnulty, S. G., Gavazzi, M. J., Boggs, J. L., Treasure, E. A.

The study examined the relationships between whole tree hydraulic conductance (Ktree) and the conductance in roots (Kroot) and leaves …


Journal: Plant, Cell & Environment, Volume 32 (8): 980-991 (2009). DOI: 10.1111/j.1365-3040.2009.01981.x Sites: US-NC1

Comparison Of Carbon Dynamics And Water Use Efficiency Following Fire And Harvesting In Canadian Boreal Forests
Mkhabela, M., Amiro, B., Barr, A., Black, T., Hawthorne, I., Kidston, J., McCaughey, J., Orchansky, A., Nesic, Z., Sass, A., Shashkov, A., Zha, T.

Fire and harvesting are major forest renewal processes in the Canadian boreal forest. The eddy covariance method was used to compare ecosystem fluxes of carbon dioxide between harvested and burned boreal forest sites in Saskatchewan, Canada. The harvest chronosequence had …


Journal: Agricultural And Forest Meteorology, Volume 149 (5): 783-794 (2009). DOI: 10.1016/j.agrformet.2008.10.025 Sites: CA-SF1, CA-SF2, CA-SF3

Nocturnal Evapotranspiration In Eddy-Covariance Records From Three Co-Located Ecosystems In The Southeastern U.S.: Implications For Annual Fluxes
Novick, K., Oren, R., Stoy, P., Siqueira, M., Katul, G.

Nocturnal evapotranspiration (ETN) is often assumed to be negligible in terrestrial ecosystems, reflecting the common assumption that plant stomata close at night to prevent water loss from transpiration. However, recent evidence across a wide …


Journal: Agricultural And Forest Meteorology, Volume 149 (9): 1491-1504 (2009). DOI: 10.1016/j.agrformet.2009.04.005 Sites: US-Dk2, US-Dk3

Response of the carbon cycle in sub-arctic black spruce forests to climate change: Reduction of a carbon sink related to the sensitivity of heterotrophic respiration.
Ueyama, M., Harazono, Y., Kim, Y. and Tanaka, N.


Journal: Agric. Forest Meteorol., Volume 149: 582-602 (2009). DOI: Sites: US-Uaf

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., Chowanski, K., Ackerman, T.

Eddy covariance measurements of the surface energy balance and carbon dioxide exchange above high-elevation (3,480 m above sea level) alpine tundra located near Niwot Ridge, Colorado, were compared to simultaneous measurements made over an adjacent subalpine forest over two summers and one winter, from June 9, 2007 to July 3, 2008. …


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

Contrasting Carbon Dioxide Fluxes Between A Drying Shrub Wetland In Northern Wisconsin, USA, And Nearby Forests
Sulman, B.N.,  Desai, A.R., Cook, B.D., Saliendra, N., Mackay, D.S.

Wetland biogeochemistry is strongly influenced by water and temperature dynamics, and these interactions are currently poorly represented in ecosystem and climate models. A decline in water table of approximately 30 cm was observed at a wetland in Northern Wisconsin, USA over a period from 2001–2007, which was highly correlated …


Journal: Biogeosciences, Volume 6 (6): 1115-1126 (2009). DOI: 10.5194/bg-6-1115-2009 Sites: US-Los

The Land €“Atmosphere Water Flux In The Tropics
Fisher, J.B., Malhi, Y., Bonal, D., Rocha, H.R.D., Araújo, A.C.D., Gamo, M., Goulden, M.L., Hirano, T., Huete, A.R., Kondo, H., Kumagai, T., Loescher, H.W., Miller, S., Nobre, A.D., Nouvellon, Y., Oberbauer, S.F., Panuthai, S., Roupsard, O., Saleska, S., Tanaka, K., Tanaka, N., Tu, K.P., Randow, C.V.

Tropical vegetation is a major source of global land surface evapotranspiration, and can thus play a major role in global hydrological cycles and global atmospheric circulation. Accurate prediction of tropical evapotranspiration is critical to our understanding of these processes under changing climate. We examined the controls on …


Journal: Global Change Biology, Volume 15 (11): 2694-2714 (2009). DOI: 10.1111/j.1365-2486.2008.01813.x Sites: BR-Ma2

Impact Of Reduced Tillage And Cover Cropping On The Greenhouse Gas Budget Of A Maize/Soybean Rotation Ecosystem
Bavin, T., Griffis, T., Baker, J., Venterea, R.

Agricultural ecosystems have been viewed with the potential to sequester atmospheric carbon dioxide (CO2) by increasing soil organic carbon (SOC) through reduced tillage and cover cropping practices. There remains considerable uncertainty, however, regarding the …


Journal: Agriculture, Ecosystems & Environment, Volume 134 (3-4): 234-242 (2009). DOI: 10.1016/j.agee.2009.07.005 Sites: US-Ro1

Measuring Boreal Forest Evapotranspiration Using The Energy Balance Residual
Amiro, B.

The eddy covariance technique is the most common method of measuring forest evapotranspiration directly. Evapotranspiration can also be estimated by solving for the residual of the energy balance measurements of net radiation, sensible heat flux density and ground heat flux density. However, the lack of energy balance closure of …


Journal: Journal Of Hydrology, Volume 366 (1-4): 112-118 (2009). DOI: 10.1016/j.jhydrol.2008.12.021 Sites: CA-SF1, CA-SF2, CA-SF3

Factors Controlling The Interannual Variability In The Carbon Balance Of A Southern Boreal Black Spruce Forest
Krishnan, P., Black, T. A., Barr, A. G., Grant, N. J., Gaumont-Guay, D., Nesic, Z.

Factors controlling the seasonal and interannual variability of net ecosystem
productivity (FNEP), gross ecosystem photosynthesis (Pg), ecosystem respiration (Re) and
evapotranspiration (E) of a mature boreal black spruce forest in central Saskatchewan,
Canada were investigated using eight years (1999–2006) of continuous eddy …


Journal: Journal Of Geophysical Research, Volume 113 (D9): (2008). DOI: doi:10.1029/2007JD008965 Sites: CA-Obs