Wood properties of trembling aspen and paper birch after 5 years of exposure to elevated concentrations of CO2 and O3
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Tree Physiology. 28: 805-813.
We investigated the interactive effects of elevated concentrations of carbon dioxide ([CO2]) and ozone ([O3]) on radial growth, wood chemistry and structure of five 5-year-old trembling aspen (Populus tremuloides Michx.) clones and the wood chemistry of paper birch (Betula papyrifera Marsh.). Material for the study was collected from the Aspen FACE (free-air CO2 enrichment) experiment in Rhinelander, WI, where the saplings had been exposed to four treatments: control, elevated [CO2] (560 ppm), elevated [O3] (1.5 x ambient) and their combination for five growing seasons.Wood properties of both species were altered in response to exposure to the treatments.
KeywordsBetula papyrifera; carbon dioxide; cell wall; climate change; FACE; ozone; Populus tremuloides; wood chemistry; wood structure
Kostiainen, Katri; Kaakinen, Seija; Warsta, Elina; Kubiske, Mark E.; Nelson, Neil D.; Sober, Jaak; Karnosky, David F.; Saranpaa, Pekka; Vapaavuori, Elina. 2008. Wood properties of trembling aspen and paper birch after 5 years of exposure to elevated concentrations of CO2 and O3. Tree Physiology. 28: 805-813.