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Table 2 The relative CO2 emission rate of soils (part from initial rate at +10°C) during different periods of freezing-thawing cycles

From: Influence of freeze-thaw events on carbon dioxide emission from soils at different moisture and land use

Cycle Period Variants of soils
   FDS FWS ADS AWS
First cycle Before freezing 1.00 1.00 1.00 1.00
  Soil freezing 0.35 0.33 0.18 0.63
  Frozen soils 0.13 0.08 0.05 0.15
  Soil thawing 0.70 0.63 0.70 0.35
  After thawing 1.56 1.33 1.72 1.55
Second cycle Before freezing 1.23 1.26. 1.35 1.39
  Soil freezing 0.31 0.36 0.27 0.93
  Frozen soils 0.08 0.06 0.06 0.20
  Soil thawing 0.44 0.35 0.58 0.19
  After thawing 1.17 0.97 1.30 1.19