Journal
NATURE GEOSCIENCE
Volume 11, Issue 12, Pages 915-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41561-018-0246-x
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- Department of Physical and Environmental Sciences at the University of Toronto Scarborough, Canada
- Natural Science and Engineering Research Council of Canada
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Wood carbon concentrations play a central role in forest carbon accounting, and are fundamentally linked to the growth strategies of woody plants. Yet there are no comprehensive assessments of wood carbon among trees globally, and coarse approximations of wood carbon (for example, 50%) are employed in virtually all benchmark models and assessments of forest carbon. We consolidated the largest database for any wood chemical trait-2,228 wood carbon observations from 636 species across all forested biomes-to derive robust wood carbon fractions for forest carbon accounting. Carbon fractions show substantial variation among forest biomes, and indicate errors in the existing forest carbon estimates of 4.8%, on average, and most extreme errors of 8.9% in tropical forests. The data also demonstrate that wood carbon concentrations show a phylogenetic signal and are co-evolved with, and negatively related to, wood density, thus representing a key plant trait that links plant functional biology to ecosystem processes worldwide.
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