The magnitude of changes in carboxylation capacity in dominant plant species under long-term elevated CO2 exposure (elevated pCa) directly impacts …
Journal: Global Change Biology, Volume 10 (12): 2121-2138 (2004). DOI: 10.1111/j.1365-2486.2004.00867.x Sites: US-Dk1, US-Dk2, US-Dk3
Estimates of forest net primary production (NPP) demand accurate estimates of root production and turnover. We assessed root turnover with the use of an isotope tracer in two forest free-air carbon dioxide enrichment experiments. Growth at elevated carbon dioxide did not accelerate root turnover in either the pine or the hardwood …
Journal: Science, Volume 302 (5649): 1385-1387 (2003). DOI: 10.1126/science.1089543 Sites: US-Dk3, US-WBW
Elevated atmospheric carbon dioxide (CO2e) increases soil respiration rates in forest, grassland, agricultural and wetland systems as a result of increased …
Journal: Global Change Biology, Volume 9 (6): 849-861 (2003). DOI: 10.1046/j.1365-2486.2003.00630.x Sites: US-Dk3
Journal: Tree Physiology, Volume 23 (7): 433-442 (2003). DOI: 10.1093/treephys/23.7.433 Sites: US-Dk3
Empirical and modeling studies have shown that the magnitude and duration of the primary production response to elevated carbon dioxide (CO2) can be constrained by limiting supplies of soil nitrogen (N). We have studied the response of a southern …
Journal: Ecosystems, Volume 6 (5): 444-456 (2003). DOI: 10.1007/s10021-003-0205-1 Sites: US-Dk3
There is growing evidence that plant stomata have evolved physiological controls to satisfy the demand for CO2 by photosynthesis while regulating water losses by …
Journal: Plant, Cell And Environment, Volume 26 (3): 339-350 (2003). DOI: 10.1046/j.1365-3040.2003.00965.x Sites: US-Dk1, US-Dk2, US-Dk3
We linked a leaf-level CO2 assimilation model with a model that accounts for light attenuation in the canopy and measurements of sap-flux-based canopy conductance into a new canopy conductance-constrained carbon assimilation (4C-A) model. We estimated canopy CO2 uptake (AnC) at the Duke Forest …
Journal: Global Change Biology, Volume 9 (10): 1378-1400 (2003). DOI: 10.1046/j.1365-2486.2003.00662.x Sites: US-Dk3
Differences in the seasonal pattern of assimilatory and respiratory processes are responsible for divergences in seasonal net carbon exchange among ecosystems. Using FLUXNET data (
Journal:
Agricultural And Forest Meteorology, Volume 113 (1-4): 53-74 (2002). DOI: 10.1016/s0168-1923(02)00102-8
Sites: US-Blo, US-Dk3, US-Ho1, US-Me4
One of the main challenges to quantifying ecosystem carbon budgets is properly quantifying the magnitude of night-time ecosystem respiration. Inverse Lagrangian dispersion …
Journal: Global Change Biology, Volume 8 (2): 124-141 (2002). DOI: 10.1046/j.1354-1013.2001.00447.x Sites: US-Dk3
Allocation of C to belowground plant structures is one of the most important, yet least well quantified fluxes of C in terrestrial ecosystems. In a literature review of mature forests worldwide, Raich …
Journal: Agricultural And Forest Meteorology, Volume 113 (1-4): 39-51 (2002). DOI: 10.1016/s0168-1923(02)00101-6 Sites: CR-Lse, US-Dk3, US-Ho1, US-Me4, US-MMS, US-UMB, US-WBW