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Reich, P. B., Turner, D. P., Bolstad, P.
Substantial research seeks to improve estimates of ecosystem processes and fluxes at a range of scales, notably from the stand scale (<1 km2) using ecosystem physiology and eddy covariance techniques, to the landscape (∼102 km2) and …
Journal: Remote Sensing Of Environment, Volume 70 (1): 69-81 (1999), ISBN . DOI: 10.1016/s0034-4257(99)00058-9 Sites: CA-Man, US-KFB, US-Kon
Joiner, D. W., McCaughey, J. H., Lafleur, P. M., Bartlett, P. A.
Climatological measurements, including carbon dioxide flux density, were made from May to September 1994 and from May to November 1996 at a young jack pine (Pinus banksiana Lamb.) forest near Thompson, …
Journal: Journal Of Geophysical Research: Atmospheres, Volume 104 (D22): 27641-27652 (1999), ISBN . DOI: 10.1029/1999jd900368 Sites: CA-Man
Brooks, J. R., Flanagan, L. B., Varney, G. T., Ehleringer, J. R.
We compared vertical gradients in leaf gas exchange, CO2 concentrations, and refixation of respired CO2 in stands of Populus tremuloides Michx., Pinus banksiana Lamb. and Picea mariana (Mill.) B.S.P. at the northern and southern boundaries of the central Canadian boreal forest. Midsummer …
Journal: Tree Physiology, Volume 17 (1): 1-12 (1997), ISBN . DOI: 10.1093/treephys/17.1.1 Sites: CA-Man, CA-Oas, CA-Obs, CA-Ojp
Gower, S. T., Vogel, J. G., Norman, J. M., Kucharik, C. J., Steele, S. J., Stow, T. K.
The objectives of this study are to (1) characterize the carbon (C) content, leaf area index, and aboveground net primary production (ANPP) for mature aspen, black spruce, and young and mature jack pine stands …
Journal: Journal Of Geophysical Research: Atmospheres, Volume 102 (D24): 29029-29041 (1997), ISBN . DOI: 10.1029/97jd02317 Sites: CA-Man
Margolis, H. A., Ryan, M. G.
Journal: Tree Physiology, Volume 17 (8-9): 491-499 (1997), ISBN . DOI: 10.1093/treephys/17.8-9.491 Sites: CA-Man, CA-Oas, CA-Obs, CA-Ojp
Dang, Q., Margolis, H. A., Coyea, M. R., Sy, M., Collatz, G. J.
Effects of shoot water potential (Ψ) and leaf-to-atmosphere vapor pressure difference (VPD) on gas exchange of jack pine (Pinus banksiana Lamb.), black spruce (Picea mariana (Mill.) B.S.P.), and aspen (Populus tremuloides Michx.) were investigated at the northern edge of the boreal forest in Manitoba, …
Journal: Tree Physiology, Volume 17 (8-9): 521-535 (1997), ISBN . DOI: 10.1093/treephys/17.8-9.521 Sites: CA-Man
Steele, S. J., Gower, S. T., Vogel, J. G., Norman, J. M.
Root biomass, net primary production and turnover were studied in aspen, jack pine and black spruce forests in two contrasting climates. The climate of the Southern Study Area (SSA) near Prince Albert, Saskatchewan is warmer and drier in the summer and milder in the winter than the Northern Study Area (NSA) near Thompson, Manitoba, …
Journal: Tree Physiology, Volume 17 (8-9): 577-587 (1997), ISBN . DOI: 10.1093/treephys/17.8-9.577 Sites: CA-Man, CA-Oas, CA-Obs, CA-Ojp
Lavigne, M. B., Ryan, M. G.
We measured stem respiration rates during and after the 1994 growing season of three common boreal tree species at sites near the northern and southern boundaries of the closed-canopy boreal forest in central Canada. The growth respiration coefficient (rg; carbon efflux per μmole of carbon incorporated in structural …
Journal: Tree Physiology, Volume 17 (8-9): 543-551 (1997), ISBN . DOI: 10.1093/treephys/17.8-9.543 Sites: CA-Man, CA-Oas, CA-Obs, CA-Ojp
Kimball, J. S., Thornton, P. E., White, M. A., Running, S. W.
A process-based, general ecosystem model (BIOME–BGC) was used to simulate daily gross primary production, maintenance and heterotrophic respiration, net primary production and net ecosystem carbon exchange of boreal aspen, jack pine and black spruce stands. Model simulations of daily net carbon exchange of the ecosystem (NEE) explained …
Journal: Tree Physiology, Volume 17 (8-9): 589-599 (1997), ISBN . DOI: 10.1093/treephys/17.8-9.589 Sites: CA-Man, CA-Oas, CA-Obs, CA-Ojp