Fig. S1 Time course of isotopic abundance in soil CO2 following the atmospheric 13CO2 pulse.

Fig. S2 Modelled CO2 concentrations at steady state when applying the parametrization used for results in Fig. S1 (see Table S1) plotted against measured CO2 concentrations at identical depth.

Notes S1 Modelling CO2 diffusion in the soil during and after the 13C pulse experiment.

Table S1 Model parameters for the one-dimensional, multi-layer CO2 diffusion model

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NPH_2883_sm_supplement.doc151KSupporting info item