Global convergence in the temperature sensitivity of respiration at ecosystem level. Mahecha, M., D., Reichstein, M., Carvalhais, N., Lasslop, G., Lange, H., Seneviratne, S., I., Vargas, R., Ammann, C., Arain, M., A., Cescatti, A., Janssens, I., a., Migliavacca, M., Montagnani, L., & Richardson, A., D. Science (New York, N.Y.), 329:838-40, 2010. ![Global convergence in the temperature sensitivity of respiration at ecosystem level. [link]](https://bibbase.org/img/filetypes/link.svg "link")
Website doi abstract bibtex The respiratory release of carbon dioxide (CO(2)) from the land surface is a major flux in the global carbon cycle, antipodal to photosynthetic CO(2) uptake. Understanding the sensitivity of respiratory processes to temperature is central for quantifying the climate-carbon cycle feedback. We approximated the sensitivity of terrestrial ecosystem respiration to air temperature (Q(10)) across 60 FLUXNET sites with the use of a methodology that circumvents confounding effects. Contrary to previous findings, our results suggest that Q(10) is independent of mean annual temperature, does not differ among biomes, and is confined to values around 1.4 +/- 0.1. The strong relation between photosynthesis and respiration, by contrast, is highly variable among sites. The results may partly explain a less pronounced climate-carbon cycle feedback than suggested by current carbon cycle climate models.
@article{
title = {Global convergence in the temperature sensitivity of respiration at ecosystem level.},
type = {article},
year = {2010},
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pages = {838-40},
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abstract = {The respiratory release of carbon dioxide (CO(2)) from the land surface is a major flux in the global carbon cycle, antipodal to photosynthetic CO(2) uptake. Understanding the sensitivity of respiratory processes to temperature is central for quantifying the climate-carbon cycle feedback. We approximated the sensitivity of terrestrial ecosystem respiration to air temperature (Q(10)) across 60 FLUXNET sites with the use of a methodology that circumvents confounding effects. Contrary to previous findings, our results suggest that Q(10) is independent of mean annual temperature, does not differ among biomes, and is confined to values around 1.4 +/- 0.1. The strong relation between photosynthesis and respiration, by contrast, is highly variable among sites. The results may partly explain a less pronounced climate-carbon cycle feedback than suggested by current carbon cycle climate models.},
bibtype = {article},
author = {Mahecha, Miguel D. and Reichstein, Markus and Carvalhais, Nuno and Lasslop, Gitta and Lange, Holger and Seneviratne, Sonia I and Vargas, Rodrigo and Ammann, Christof and Arain, M Altaf and Cescatti, Alessandro and Janssens, Ivan a and Migliavacca, Mirco and Montagnani, Leonardo and Richardson, Andrew D},
doi = {10.1126/science.1189587},
journal = {Science (New York, N.Y.)}
}
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