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    Author(s): Michael C. WiemannDavid KretschmannAlan Rudie; Bruce A. Kimball; Sherwood B. Idso
    Date: 2008
    Source: Research Paper FPL-RP-648. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 7 p.
    Publication Series: Research Paper (RP)
    Station: Forest Products Laboratory
    PDF: View PDF  (721.0 KB)

    Description

    Exposure to elevated levels of atmospheric CO2 for a period of 17 years resulted in small but statistically significant decreases in wood basic specific gravity and number of rays per millimeter. Other anatomical characteristics (percentages of tissues, number of vessels per square millimeter, vessel diameters, and fiber wall thickness) were unaffected by treatment. Differences due to distance from pith were important, but cardinal direction (north, south, east, west) was not.

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    Citation

    Wiemann, Michael C.; Kretschmann, David; Rudie, Alan; Kimball, Bruce A.; Idso, Sherwood B. 2008. Long-term effects of elevated carbon dioxide on sour orange tree specific gravity and anatomy. Research Paper FPL-RP-648. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 7 p.

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    Keywords

    carbon dioxide, specific gravity, wood anatomy, vessels, rays, axial parenchyma, fibers

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https://www.fs.usda.gov/treesearch/pubs/30937