Complex forest dynamics indicate potential for slowing carbon accumulation in the southeastern United States.
作者： John W. Coulston , David N. Wear , James M. Vose
DOI: 10.1038/SREP08002
关键词:
摘要: Over the past century forest regrowth in Europe and North America expanded carbon (C) sinks offset C emissions but future accumulation is uncertain. Policy makers need insights into dynamics as they anticipate futures goals. We used land use inventory data to estimate how have changed southeastern United States attribute changes use, management, disturbance causes. From 2007-2012, forests yielded a net sink of because change (+6.48 Tg yr−1) biomass (+75.4 Tg yr−1). Forests disturbed by weather, insect/disease, fire show dampened yet positive (+1.56, +1.4, +5.48 Tg yr−1, respectively). Forest cutting caused decreases (−76.7 Tg was growth (+143.77 Tg rates depend on age or stage development projected stock indicate gradual slowing with anticipated aging (a reduction 9.5% over next five years). Additionally, small shifts transitions consistent economic resulted 40.6% decrease accumulation.
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