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    Author(s): Johan Uddling; Ronald M. Teclaw; Kurt S. Pregitzer; David S. Ellsworth
    Date: 2009
    Source: Tree physiology. 29: 1367-1380.
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: Download Publication  (1.12 MB)


    Increasing concentrations of atmospheric carbon dioxide (C02) and tropospheric ozone (03) have the potential to affect tree physiology and structure, and hence forest feedbacks on climate. Here, we investigated how elevated concentrations of CO2 (+ 45%) and O3 (+ 35%), alone and in combination, affected conductance for mass transfer at the leaf and canopy levels in pure aspen (Populus tremuloides Michx.) and in mixed aspen and birch (Betula papyrifera Marsh.) forests in the free-air CO2-O3 enrichment experiment near Rhinelander, Wisconsin (Aspen FACE).

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    Uddling, Johan; Teclaw, Ronald M.; Pregitzer, Kurt S.; Ellsworth, David S. 2009. Leaf and canopy conductance in aspen and aspen-birch forests under free-air enrichment of carbon dioxide and ozone


    13C discrimination, FACE, photosynthesis, sap flow, stomata, tree community

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