Position

Landscape segment

Landscape fractional

SOC stock

Loss of SOC

Percentage

width (m)

segment width as

landscape

stock

change

decimal

Mg C ha−1

Mg C ha−1

Prairie

Interfluve

23.7a*

0.205a

31.8a

Shoulder

20.0a

0.173a

31.8a

Backlslope

23.9a

0.206a

26.0a

Footslope

20.9a

0.180a

30.3a

Toeslope

27.3a

0.236a

40.8a

Total

115.8a

1.000a

160.6a

Total without toeslope

119.8a

Cultivated agricultural land

Interfluve

22.5a

0.237a

32.3a

Shoulder

14.6b

0.153a

18.7b

Backlslope

15.6b

0.164b

24.2a

Footslope

16.9b

0.178a

26.9a

Toeslope

25.4a

0.267a

29.5b

Total

95.0b

1.000a

131.6a

29.0

18%

Total without toeslope

102.1a

17.7

11%