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A large and persistent carbon sink in the world's forestsAuthor(s): Yude Pan; Richard A. Birdsey; Jingyun Fang; Richard Houghton; Pekka E. Kauppi; Werner A. Kurz; Oliver L. Phillips; Anatoly Shvidenko; Simon L. Lewis; Josep G. Canadell; Philippe Ciais; Robert B. Jackson; Stephen W. Pacala; A. David McGuire; Shilong Piao; Aapo Rautiainen; Stephen Sitch; Daniel Hayes
Source: Science. 333: 988-993.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
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DescriptionThe terrestrial carbon sink has been large in recent decades, but its size and location remain uncertain. Using forest inventory data and long-term ecosystem carbon studies, we estimate a total forest sink of 2.4 ± 0.4 petagrams of carbon per year (Pg C year-1) globally for 1990 to 2007. We also estimate a source of 1.3 ± 0.7 Pg C year-1 from tropical land-use change, consisting of a gross tropical deforestation emission of 2.9 ± 0.5 Pg C year-1 partially compensated by a carbon sink in tropical forest regrowth of 1.6 ± 0.5 Pg C year-1. Together, the fluxes comprise a net global forest sink of 1.1 ± 0.8 Pg C year-1, with tropical estimates having the largest uncertainties. Our total forest sink estimate is equivalent in magnitude to the terrestrial sink deduced from fossil fuel emissions and land-use change sources minus ocean and atmospheric sinks.
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CitationPan, Yude; Birdsey, Richard A.; Fang, Jingyun; Houghton, Richard; Kauppi, Pekka E.; Kurz, Werner A.; Phillips, Oliver L.; Shvidenko, Anatoly; Lewis, Simon L.; Canadell, Josep G.; Ciais, Philippe; Jackson, Robert B.; Pacala, Stephen W.; McGuire, A. David; Piao, Shilong; Rautiainen, Aapo; Sitch, Stephen; Hayes, Daniel. 2011. A large and persistent carbon sink in the world's forests. Science. 333: 988-993.
Keywordsboreal, carbon, ecosystem
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