gcb12058-sup-0001-TableS1-S4.docxWord document58K

Table S1. The measured δ13C, ∆14C, flux rates, and estimated carbon pools and soil temperatures of individual soil sections used to calculate the depth-integrated δ13C and ∆14C of young soil and old soil.

Table S2. δ13C and ∆14C of each Reco collar for all active layer (AL) categories and months.

Table S3. Mean (±SE) Reco flux during the growing season for all AL categories in 2008 and 2009.

Table S4. Sensitivity analysis using July 2009 data to quantify how changing the mean values of source isotopes affect model results.

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