Lead Authors:
Grant Domke, USDA Forest Service
Christopher A. Williams, Clark University
Contributing Authors:
Richard Birdsey, Woods Hole Research Center
John Coulston, USDA Forest Service
Adrien Finzi, Boston University
Christopher Gough, Virginia Commonwealth University
Bob Haight, USDA Forest Service
Jeff Hicke, University of Idaho
Maria Janowiak, USDA Forest Service
Ben de Jong, El Colegio de la Frontera Sur
Werner A. Kurz, Natural Resources Canada, Canadian Forest Service
Melissa Lucash, Portland State University
Stephen Ogle, Colorado State University
Marcela Olguín-Álvarez, Consultant, SilvaCarbon Program
Yude Pan, USDA Forest Service
Margaret Skutsch, Centro de Investigaciones en Geografía Ambiental
Carolyn Smyth, Natural Resources Canada, Canadian Forest Service
Chris Swanston, USDA Forest Service
Pamela Templer, Boston University
Dave Wear, USDA Forest Service
Christopher W. Woodall, USDA Forest Service
Science Lead:
Richard Birdsey, Woods Hole Research Center
Review Editor:
Marc G. Kramer, Washington State University, Vancouver
Federal Liaisons:
John Schade, National Science Foundation
Anne Marsh, USDA Forest Service
Karina V. R. Schäfer (former), National Science Foundation


Forestland, and thus forest carbon, has changed substantially in North America over the last several hundred years. In the United States, for example, forestland amounts to an estimated 72% of the area that was forested in 1630, with roughly 120 million ha converted to other uses (mainly agricultural) primarily from 1850 to 1910 (Smith et al., 2009). National assessments of forest land area and carbon dynamics have been conducted in Canada, Mexico, and the United States, but the motivation for these reports and the methods and data sources they use differ substantially among countries. In recent decades, official government estimates of forest land area, forest carbon stocks, and stock changes have been compiled following guidelines from the Intergovernmental Panel on Climate Change (IPCC 2003, 2006). However, the methods for estimating carbon stocks and their changes (e.g., stock difference versus gain-loss) still differ based on country-specific circumstances, but estimation approaches have evolved as new and better information has become available in each country. Of the numerous key findings SOCCR1 identified on the role of forests in the North American carbon cycle, many (e.g., land-use change) continue to be relevant 10 years later, along with several emerging topics (e.g., climate feedbacks).

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