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    Author(s): John Coulston; David Wear; Jim Vose
    Date: 2015
    Source: In: Stanton, Sharon M.; Christensen, Glenn A., comps. 2015. Pushing boundaries: new directions in inventory techniques and applications: Forest Inventory and Analysis (FIA) symposium 2015. 2015 December 8–10; Portland, Oregon. Gen. Tech. Rep. PNW-GTR-931. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. p. 226.
    Publication Series: General Technical Report (GTR)
    Station: Pacific Northwest Research Station
    PDF: Download Publication  (222.0 KB)

    Description

    Over the past century forest regrowth in Europe and North America expanded forest carbon (C) sinks and offset C emissions but future C accumulation is uncertain due to the effects of land use changes, management, disturbance, and climate change. Policy makers need insights into forest C dynamics as they anticipate emissions futures and goals. Using a completely remeasured land use and forest inventory we show that forests in the southeastern United States yielded a net sink of C over a 5 year period (2007-2012) because of net land use change (+6.48 TgC yr-1) and net forest accumulation (+75.4 TgC yr-1). Forests disturbed by weather, insect/disease, and fire show positive forest C changes (+1.56, +1.4, +5.48 TgC yr-1, respectively). Forest cutting was the only disturbance causing net decreases in C (-76.7 TgC yr-1) but was offset by forest accumulation (+143.77 TgC yr-1). Projected C stock changes indicate a gradual slowing of carbon accumulation with forest aging (a reduction of 9.5% over the next five years) but was highly sensitive to land use.

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    Citation

    Coulston, John; Wear, David; Vose, Jim. 2015. Observed and projected C change in the Southeastern US. In: Stanton, Sharon M.; Christensen, Glenn A., comps. 2015. Pushing boundaries: new directions in inventory techniques and applications: Forest Inventory and Analysis (FIA) symposium 2015. 2015 December 8–10; Portland, Oregon. Gen. Tech. Rep. PNW-GTR-931. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. p. 226.

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