Table 2 Soil carbon pools at each sampling location and seasonal analysis of their respective radiocarbon signatures

From: Evidence for non-steady-state carbon emissions from snow-scoured alpine tundra

Site

Season

Vegetation

Total C (kg m−2)

Lf (%)

Hf* (%)

Lf C (%)

Hf* C (%)

14C CO2 (‰)

14C Lf (‰)

14C Hf* (‰)

13

Summer

DM

14.1

32.6

67.4

26.4

8.4

45.8 (n = 5)

24.4

−98.7

14

Summer

MM

10.8

16.4

83.6

26.9

9.7

44.7 (n = 5)

10.6

−86.5

17

Summer

WM

9.9

16.0

84.0

29.6

4.6

33.2 (n = 8)

66.2

−68.8

18

Summer

WM

10.6

15.4

84.6

27.2

9.6

36.0 (n = 10)

148.1

−72.5

17

Winter

WM

9.9

16.0

84.0

29.6

4.6

33.8 (n = 5)

66.2

−68.8

18

Winter

WM

10.6

15.4

84.6

27.2

9.6

−16.9 (n = 7)

148.1

−72.5

  1. Vegetation categories are dry meadow (DM), moist meadow (MM) and wet meadow (WM). Lf and Hf* represent the light and heavy (including occluded light) carbon fractions. Delta (∆) notation denotes that samples have been 13C corrected. Site numbers correspond to a previous study at this location41 and are bounded by the coordinates 40°03′07″ N; 105°35′11″ W and 40°03′09″ N; 105°35′14″ W