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    Author(s): Doug P. Aubrey; Robert O. Teskey
    Date: 2009
    Source: New Phytologist: 1-6
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (624.69 KB)


    Respiration consumes a large portion of annual gross primary productivity in forest ecosystems and is dominated by belowground metabolism. Here, we present evidence of a previously unaccounted for internal CO2 flux of large magnitude from tree roots through stems. If this pattern is shown to persist over time and in other forests, it suggests that belowground respiration has been grossly underestimated.

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    Aubrey, Doug P.; Teskey, Robert O. 2009. Root-derived CO2 efflux via xylem stream rivals soil CO2 efflux. New Phytologist: 1-6


    carbon allocation, carbon cycle, CO2 efflux, dissolved inorganic carbon, forests, respiration, roots, xylem transport

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