Thermal optimality of net ecosystem exchange of carbon dioxide and underlying mechanisms Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/k930bx59h

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 New Phytologist Trust and can be found at:  http://www.newphytologist.org/.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • It is well established that individual organisms can acclimate and adapt to temperature to optimize their functioning. However, thermal optimization of ecosystems, as an assemblage of organisms, has not been examined at broad spatial and temporal scales. Here, we compiled data from 169 globally distributed sites of eddy covariance and quantified the temperature response functions of net ecosystem exchange (NEE), an ecosystem-level property, to determine whether NEE shows thermal optimality and to explore the underlying mechanisms. We found that the temperature response of NEE followed a peak curve, with the optimum temperature (corresponding to the maximum magnitude of NEE) being positively correlated with annual mean temperature over years and across sites. Shifts of the optimum temperature of NEE were mostly a result of temperature acclimation of gross primary productivity (upward shift of optimum temperature) rather than changes in the temperature sensitivity of ecosystem respiration. Ecosystem-level thermal optimality is a newly revealed ecosystem property, presumably reflecting associated evolutionary adaptation of organisms within ecosystems, and has the potential to significantly regulate ecosystemclimate change feedbacks. The thermal optimality of NEE has implications for understanding fundamental properties of ecosystems in changing environments and benchmarking global models.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Niu, S., Aubinet, M., Barr, A., Beringer, J., Bernhofer, C., Black, T. A., . . . . (2012). Thermal optimality of net ecosystem exchange of carbon dioxide and underlying mechanisms. The New Phytologist, 194(3), 775-783. doi: 10.1111/j.1469-8137.2012.04095.x
Academic Affiliation
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2013-01-28T22:39:28Z (GMT). No. of bitstreams: 1 LawBeverlyEForestEcosystemsSocietyThermalOptimalityNet.pdf: 1529980 bytes, checksum: 100a83ab163c44ec25bbab2ad600d310 (MD5) Previous issue date: 2012-03-07
  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2013-01-28T22:37:31Z No. of bitstreams: 1 LawBeverlyEForestEcosystemsSocietyThermalOptimalityNet.pdf: 1529980 bytes, checksum: 100a83ab163c44ec25bbab2ad600d310 (MD5)
  • description.provenance : Approved for entry into archive by Deborah Campbell(deborah.campbell@oregonstate.edu) on 2013-01-28T22:39:28Z (GMT) No. of bitstreams: 1 LawBeverlyEForestEcosystemsSocietyThermalOptimalityNet.pdf: 1529980 bytes, checksum: 100a83ab163c44ec25bbab2ad600d310 (MD5)

Relationships

In Administrative Set:
Last modified: 07/08/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items