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Integrated global assessment of the natural forest carbon potential

Authors
  • Mo, Lidong
  • Zohner, Constantin M.
  • Reich, Peter B.
  • Liang, Jingjing
  • De Miguel, Sergio
  • Nabuurs, Gert-Jan
  • Renner, Susanne S.
  • van den Hoogen, Johan
  • Araza, Arnan
  • Herold, Martin
  • Mirzagholi, Leila
  • Ma, Haozhi
  • Averill, Colin
  • Phillips, Oliver L.
  • Gamarra, Javier Garcia Perez
  • Hordijk, Iris
  • Routh, Devin
  • Abegg, Meinrad
  • Adou Yao, C.Y.
  • Alberti, Giorgio
  • And 172 more
Publication Date
Jan 01, 2023
Source
Agritrop
Keywords
Language
English
License
Green
External links

Abstract

Forests are a substantial terrestrial carbon sink, but anthropogenic changes in land use and climate have considerably reduced the scale of this system. Remote-sensing estimates to quantify carbon losses from global forests are characterized by considerable uncertainty and we lack a comprehensive ground-sourced evaluation to benchmark these estimates. Here we combine several ground-sourced and satellite-derived approaches to evaluate the scale of the global forest carbon potential outside agricultural and urban lands. Despite regional variation, the predictions demonstrated remarkable consistency at a global scale, with only a 12% difference between the ground-sourced and satellite-derived estimates. At present, global forest carbon storage is markedly under the natural potential, with a total deficit of 226 Gt (model range = 151–363 Gt) in areas with low human footprint. Most (61%, 139 Gt C) of this potential is in areas with existing forests, in which ecosystem protection can allow forests to recover to maturity. The remaining 39% (87 Gt C) of potential lies in regions in which forests have been removed or fragmented. Although forests cannot be a substitute for emissions reductions, our results support the idea that the conservation, restoration and sustainable management of diverse forests offer valuable contributions to meeting global climate and biodiversity targets.

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