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  Temperature thresholds of ecosystem respiration at a global scale

Johnston, A. S. A., Meade, A., Ardö, J., Arriga, N., Black, A., Blanken, P. D., Bonal, D., Brümmer, C., Cescatti, A., Dušek, J., Graf, A., Gioli, B., Goded, I., Gough, C. M., Ikawa, H., Jassal, R., Kobayashi, H., Magliulo, V., Manca, G., Montagnani, L., Moyano, F. E., Olesen, J. E., Sachs, T., Shao, C., Tagesson, T., Wohlfahrt, G., Wolf, S., Woodgate, W., Varlagin, A., Venditti, C. (2021): Temperature thresholds of ecosystem respiration at a global scale. - Nature Ecology & Evolution, 5, 487-494.
https://doi.org/10.1038/s41559-021-01398-z

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 Creators:
Johnston, Alice S. A.1, 2, Author
Meade, Andrew1, 2, Author
Ardö, Jonas1, 2, Author
Arriga, Nicola1, 2, Author
Black, Andy1, 2, Author
Blanken, Peter D.1, 2, Author
Bonal, Damien1, 2, Author
Brümmer, Christian1, 2, Author
Cescatti, Alessandro1, 2, Author
Dušek, Jiří1, 2, Author
Graf, Alexander1, 2, Author
Gioli, Beniamino1, 2, Author
Goded, Ignacio1, 2, Author
Gough, Christopher M.1, 2, Author
Ikawa, Hiroki1, 2, Author
Jassal, Rachhpal1, 2, Author
Kobayashi, Hideki1, 2, Author
Magliulo, Vincenzo1, 2, Author
Manca, Giovanni1, 2, Author
Montagnani, Leonardo1, 2, Author
Moyano, Fernando E.1, 2, AuthorOlesen, Jørgen E.1, 2, AuthorSachs, T.2, 3, Author              Shao, Changliang1, 2, AuthorTagesson, Torbern1, 2, AuthorWohlfahrt, Georg1, 2, AuthorWolf, Sebastian1, 2, AuthorWoodgate, William1, 2, AuthorVarlagin, Andrej1, 2, AuthorVenditti, Chris1, 2, Author more..
Affiliations:
1External Organizations, ou_persistent22              
2TERENO, Deutsches GeoForschungsZentrum, ou_5026871              
31.4 Remote Sensing, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146028              

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 Abstract: Ecosystem respiration is a major component of the global terrestrial carbon cycle and is strongly influenced by temperature. The global extent of the temperature–ecosystem respiration relationship, however, has not been fully explored. Here, we test linear and threshold models of ecosystem respiration across 210 globally distributed eddy covariance sites over an extensive temperature range. We find thresholds to the global temperature–ecosystem respiration relationship at high and low air temperatures and mid soil temperatures, which represent transitions in the temperature dependence and sensitivity of ecosystem respiration. Annual ecosystem respiration rates show a markedly reduced temperature dependence and sensitivity compared to half-hourly rates, and a single mid-temperature threshold for both air and soil temperature. Our study indicates a distinction in the influence of environmental factors, including temperature, on ecosystem respiration between latitudinal and climate gradients at short (half-hourly) and long (annual) timescales. Such climatological differences in the temperature sensitivity of ecosystem respiration have important consequences for the terrestrial net carbon sink under ongoing climate change.

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Language(s): eng - English
 Dates: 2021-02-222021
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1038/s41559-021-01398-z
GFZPOF: p4 T5 Future Landscapes
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Title: Nature Ecology & Evolution
Source Genre: Journal, SCI, Scopus
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Pages: - Volume / Issue: 5 Sequence Number: - Start / End Page: 487 - 494 Identifier: ISSN: 2397-334X
CoNE: https://gfzpublic.gfz-potsdam.de/cone/journals/resource/202002112
Publisher: Springer Nature