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    Author(s): Caroline S. Awmack; Edward B. Mondor; Richard L. Lindroth
    Date: 2007
    Source: Environmental and Experimental Botany. 59: 340-346.
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: View PDF  (565.73 KB)

    Description

    The effects of CO2 and tropospheric O3 on forest trees are increasingly the subject of experimental evaluation. Little is known, however, about the effects of these gases on understory plant taxa. At the Aspen free-air CO2 and O3 enrichment (Aspen FACE) site we assessed colonization and establishment of two common forest understory species, red (Trifolium pratense) and white (Trifolium repens) clover. To better understand these natural patterns in red clover, the more responsive of the two clover species, we also assessed intraspecific variation in growth performance to altered atmospheric conditions.

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    Citation

    Awmack, Caroline S.; Mondor, Edward B.; Lindroth, Richard L. 2007. Forest understory clover populations in enriched CO2 and O3 atmospheres: Interspecific, intraspecific, and indirect effects. Environmental and Experimental Botany. 59: 340-346.

    Keywords

    carbon dioxide, climate change, genetic variation, greenhouse gas, indirect effect ozone

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