Technical Comments

Comment on “Global Convergence in the Temperature Sensitivity of Respiration at Ecosystem Level”

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Science  11 Mar 2011:
Vol. 331, Issue 6022, pp. 1265
DOI: 10.1126/science.1196948

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Mahecha et al. (Reports, 13 August 2010, p. 838) estimated the temperature sensitivity of ecosystem respiration (Q10) and showed that temperature sensitivity and its site-to-site variability are lower than previously reported. We demonstrate that their Q10 value of 1.4 is an underestimate if interpreted as the averaged sensitivities of all ecosystem components, because fast temperature fluctuations penetrate poorly into the soil.

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