University of Hertfordshire

  • Mikko Tuomi
  • Pekka Vanhala
  • Kristiina Karhu
  • Hannu Fritze
  • Jari Liski
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Original languageEnglish
Number of pages9
Pages (from-to)182-190
JournalEcological Modelling
Journal publication date24 Feb 2008
Early online date22 Oct 2007
Publication statusPublished - 24 Feb 2008


Several models are used to describe the temperature dependence of heterotrophic soil respiration. Six such models are examined here in detail against incubation measurements from different sources. These models are compared using common sums of squared residuals, Bayesian model probabilities and Markov chain Monte Carlo (McMC) samplings of model parameter spaces. The McMC samples were calculated to study the probability distributions of model parameters in detail. We show that the temperature dependence can be described best using a Gaussian model. The often-used Q10 value as well as four other commonly used models either produce poor fittings or parameter distributions too correlated to be considered useful.


Mikko Tuomi; Pekka Vanhala; Kristiina Karhu; Hannu Fritze; & Jari Kiski, 'Heterotrophic soil respiration—Comparison of different models describing its temperature dependence', Ecological Modelling, Vol. 211 (1-2): 182-190, first published online 22 October 2007. The version of record is available at doi: doi:10.1016/j.ecolmodel.2007.09.003 © 2006 Elsevier B.V. All rights reserved.

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