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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

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Carbon Balance and Management

ISSN: 1750-0680

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