Table 1 Major soil physical and soil chemical data, CIA and vegetation cover.

From: Influence of prokaryotic microorganisms on initial soil formation along a glacier forefield on King George Island, maritime Antarctica

Soil

Depth (cm)

Vegetation (surface cover in %)

Horizon

BDa) (g cm−3)

Sand (%)

Silt (%)

Clay (%)

Nt (%)

SOC (%)

pH

Pedogenic Ratios

CIA

WRB51

H2O

CaCl2

Feo/ Fed

Fet/Fed

Alo*0.5 *Feo

KGI A S 6° 09′ 991″, W 58° 28′ 007″, 38 m a.s.l

Hyperskeletic Cryosol

0–1

Bare soil

C

n.d

n.d

n.d

n.d

< 0.03

< 0.10

7.9

6.8

0.47

11.8

0.03

53.2

0–10

 

C

1.08

50

32

18

< 0.03

< 0.10

8.3

7.5

0.77

12.5

0.05

53.7

10–20

 

C

1.07

55

29

17

< 0.03

< 0.10

8.7

7.5

0.71

12.7

0.04

53.0

20–40

 

C

n.d

52

28

19

< 0.03

< 0.10

8.9

7.8

0.54

10.2

0.06

51.2

KGI B, S 6° 09′ 953″, W 58° 27′ 852″, 31 m a.s.l

Hyperskeletic Cryosol

0–1

Usnea ant. (90), Deschampsia ant. (5), Colobanthus quit. (5); Total coverage 5

C

0.98

n.d

n.d

n.d

< 0.03

< 0.10

7.4

6.6

0.21

12.6

0.02

49.9

0–10

 

C

1.07

54

29

16

< 0.03

< 0.10

7.7

6.5

0.25

10.9

0.03

50.4

10–20

 

C

n.d

62

23

15

< 0.03

< 0.10

8.3

7.2

0.19

12.2

0.02

49.9

20–80

 

C

1.01

60

25

16

< 0.03

< 0.10

8.5

7.4

0.19

11.3

0.02

49.5

KGI C, S 6° 09′ 947″, W 58° 27′ 862″, 40 m a.s.l

Hyperskeletic Cryosol

0–1

Usnea ant. (70), Deschampsia ant. (10), Colobanthus quit. (10), Ochrolechia frigida (5), Mosses (5); Total coverage 80

Ah

n.d

n.d

n.d

n.d

0.09

1.24

6.2

5.4

0.34

11.4

0.03

50.3

0–10

 

AC

n.d

58

28

14

< 0.03

0.15

7.2

6.3

0.23

11.5

0.03

50.5

10–20

 

C

n.d

60

27

14

< 0.03

< 0.10

8.1

7.0

0.31

10.9

0.04

50.2

20–40

 

C

n.d

59

26

15

< 0.03

< 0.10

8.1

7.0

0.29

13.4

0.03

50.0

KGI D, S 6° 09′ 976″, W 58° 28′ 260″, 54 m a.s.l

Cambic Cryosol

0–3

Deschampsia ant. (50), Polytrichum spec. (40), Colobanthus quit. (5), Usnea ant. (5); Total coverage 100

Ah

0.81

n.d

n.d

n.d

0.39

3.22

5.2

4.8

0.26

12.7

0.03

51.0

3–15

 

Bw

0.97

62

31

8

0.03

0.24

6.3

5.1

0.16

12.5

0.02

50.9

15–27

 

BC

0.98

62

27

11

< 0.03

< 0.10

7.3

5.9

0.16

14.7

0.02

49.3

27–60

 

C

1.10

65

23

12

< 0.03

< 0.10

7.6

6.3

0.15

14.9

0.02

49.1

  1. aCorrected by coarse material > 2 mm.
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