Rate of tree carbon accumulation increases continuously with tree size Public Deposited

http://ir.library.oregonstate.edu/concern/articles/sn00b064c

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by Macmillan Publishers Limited and can be found at:  http://www.nature.com/nature/index.html.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Forests are major components of the global carbon cycle, providing substantial feedback to atmospheric greenhouse gas concentrations¹. Our ability to understand and predict changes in the forest carbon cycle—particularly net primary productivity and carbon storage—increasingly relies on models that represent biological processes across several scales of biological organization, from tree leaves to forest stands[superscript 2,3]. Yet, despite advances in our understanding of productivity at the scales of leaves and stands, no consensus exists about the nature of productivity at the scale of the individual tree[superscript 4–7], in part because we lack a broad empirical assessment of whether rates of absolute tree mass growth (and thus carbon accumulation) decrease, remain constant, or increase as trees increase in size and age. Here we present a global analysis of 403 tropical and temperate tree species, showing that for most species mass growth rate increases continuously with tree size. Thus, large, old trees do not act simply as senescent carbon reservoirs but actively fix large amounts of carbon compared to smaller trees; at the extreme, a single big tree can add the same amount of carbon to the forest within a year as is contained in an entire mid-sized tree. The apparent paradoxes of individual tree growth increasing with tree size despite declining leaf-level[superscript 8–10] and stand-level¹⁰ productivity can be explained, respectively, by increases in a tree’s total leaf area that outpace declines in productivity per unit of leaf area and, among other factors, age-related reductions in population density. Our results resolve conflicting assumptions about the nature of tree growth, inform efforts to understand and model forest carbon dynamics, and have additional implications for theories of resource allocation¹¹ and plant senescence¹².
Resource Type
DOI
Date Available
Date Issued
Citation
  • Stephenson, N. L., Das, A. J., Condit, R., Russo, S. E., Baker, P. J., Beckman, N. G., ... & Zavala, M. A. (2014). Rate of tree carbon accumulation increases continuously with tree size. Nature, 507(7490), 90-93. doi:10.1038/nature12914
Series
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-04-10T21:37:16Z No. of bitstreams: 2 HarmonMarkForestryRateTreeCarbon.pdf: 1769695 bytes, checksum: 38bb14b41fe86b7a5349e67497cd80c8 (MD5) HarmonMarkForestryRateTreeCarbon_SupplementaryInformation.pdf: 385293 bytes, checksum: 3324d5d7b8aeb0905da24b2cbdeaab76 (MD5)
  • description.provenance : Made available in DSpace on 2014-04-10T21:37:29Z (GMT). No. of bitstreams: 2 HarmonMarkForestryRateTreeCarbon.pdf: 1769695 bytes, checksum: 38bb14b41fe86b7a5349e67497cd80c8 (MD5) HarmonMarkForestryRateTreeCarbon_SupplementaryInformation.pdf: 385293 bytes, checksum: 3324d5d7b8aeb0905da24b2cbdeaab76 (MD5) Previous issue date: 2014-03-06
  • description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-04-10T21:37:29Z (GMT) No. of bitstreams: 2 HarmonMarkForestryRateTreeCarbon.pdf: 1769695 bytes, checksum: 38bb14b41fe86b7a5349e67497cd80c8 (MD5) HarmonMarkForestryRateTreeCarbon_SupplementaryInformation.pdf: 385293 bytes, checksum: 3324d5d7b8aeb0905da24b2cbdeaab76 (MD5)

Relationships

In Administrative Set:
Last modified: 07/26/2017 Default
Citations:

EndNote | Zotero | Mendeley

Items