Articles | Volume 17, issue 4
Biogeosciences, 17, 1013–1032, 2020
https://doi.org/10.5194/bg-17-1013-2020
Biogeosciences, 17, 1013–1032, 2020
https://doi.org/10.5194/bg-17-1013-2020

Research article 26 Feb 2020

Research article | 26 Feb 2020

Validation of demographic equilibrium theory against tree-size distributions and biomass density in Amazonia

Jonathan R. Moore et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (02 Jan 2020) by Akihiko Ito
AR by Jonathan Moore on behalf of the Authors (14 Jan 2020)  Author's response    Manuscript
ED: Publish subject to technical corrections (22 Jan 2020) by Akihiko Ito
AR by Jonathan Moore on behalf of the Authors (28 Jan 2020)  Author's response    Manuscript
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Short summary
The distribution of tree sizes across Amazonia can be fitted very well (for both trunk diameter and tree mass) by a simple equilibrium model assuming power law growth and size-independent mortality. We find tree growth to mirror some aspects of metabolic scaling theory and that there may be a trade-off between fast-growing, short-lived and longer-lived, slow-growing ones. Our Amazon mortality-to-growth ratio is very similar to US temperate forests, hinting at a universal property for trees.
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