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        Heterotrophic soil respiration-Comparison of different models describing its temperature dependence

        Author
        Tuomi, Mikko
        Vanhala, Pekka
        Karhu, Kristiina
        Fritze, Hannu
        Liski, Jari
        Attention
        2299/17684
        Abstract
        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.
        Publication date
        2008-02-24
        Published in
        Ecological Modelling
        Published version
        https://doi.org/10.1016/j.ecolmodel.2007.09.003
        Other links
        http://hdl.handle.net/2299/17684
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