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Carbon isotope discrimination during litter decomposition can be explained by selective use of substrate with differing δ13C

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Academic year: 2021

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Table 1. Values of fractional proportions (f i , unitless) and decomposition rate constants (k i , d −1 ) fitted from the three-C pool model (Eq
Fig. 1. Temporal evolution of mean litter respiration rate ( ± standard errors , n = 10).
Fig. 2. Upper panel. Temporal evolution of cumulative respired CO 2 -C (C L in the text) ex- ex-pressed as fraction of initial litter C (open circle, mean ± standard errors)
Fig. 3. Comparison between cumulated CO 2 -C loss (C L in the text) estimated by CO 2 concen- concen-tration measurements and mass-C loss by litter harvests, both expressed as fraction of initial litter C (g C g −1 ini )
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