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    Author(s): Kurt S. Pregitzer; Andrew J. Burton; John S. King; Donald R. Zak
    Date: 2008
    Source: New Phytologist. 180: 153-161.
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: View PDF  (212.41 KB)


    The Rhinelander free-air CO2 enrichment (FACE) experiment is designed to understand ecosystem response to elevated atmospheric carbon dioxide (+CO2) and elevated tropospheric ozone (+O3). The objectives of this study were: to understand how soil respiration responded to the experimental treatments; to determine whether fine-root biomass was correlated to rates of soil respiration; and to measure rates of fine-root turnover in aspen (Populus tremuloides) forests and determine whether root turnover might be driving patterns in soil respiration. Soil respiration was measured, root biomass was determined, and estimates of root production, mortality and biomass turnover were made.

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    Pregitzer, Kurt S.; Burton, Andrew J.; King, John S.; Zak, Donald R. 2008. Soil respiration, root biomass, and root turnover following long-term exposure of northern forests to elevated atmospheric CO2 and tropospheric O3. New Phytologist. 180: 153-161.


    carbon allocation, carbon dioxide (CO2), climate change, fine roots, global change, ozone (O3)

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