Geoscience Reference
In-Depth Information
Table 9.5
Analytical properties of selected taxa from East Antarctica
Depth
(cm)
Sand
(%)
Silt
(%)
Clay
(%)
BS
(%)
EC
(dS/m)
pH
(CaCl
2
)
TOC
(%)
Total
N (%)
Extr. P
(mg/L)
Horizon
Typic Spodorthels; Casey Station; Blume and Bölter (
2014
)
O
0-6
AE
6-8
88
7
5
65
3.8
4.2
3.9
0.16
0.33
Bh
8-11
83
12
5
60
1.5
4.3
4.1
0.37
0.47
Bsh1
11-18
67
19
13
67
1.1
4.4
2.4
0.48
0.86
Bsh2
18-30
67
19
13
67
1.1
4.6
2
0.36
Bsh3
30-40
78
17
5
76
2
4.8
9
0.41
1.36
Cg
40-50
93
1.4
5.3
3
0.03
Lithic Folistels; Casey Station; Blume and Bölter (
2014
)
Oe
0-3
88
3.5
4.7
29
1.5
0.18
Oa1
3-8
73
2.8
3.9
20
2.2
0.17
Oa2
8-16
60
0.8
3.8
19
2.1
0.25
Oa/C
16-28
46
0.4
3.8
16
1.3
0.23
R
28
Lithic Fibristels; Casey Station; Blume and Bölter (
2014
)
Oi1
0-1
85
1.8
6
27
1.4
2.1
Oi2
1-8
68
4.9
5.3
26
1.2
0.63
Oi3
8-18
83
0.6
4.9
16
0.89
0.01
R
18
(Ornithi
c) Lithic Haplorthels; Larsemann Hills; Mergelov et al. (
2014
)
(H
2
O)
O/A
0-1
0.27
6.1
8.4
0.5
A
1-4
0.43
6
15.5
0.9
Bw
4-15
0.05
6.9
0.7
0.1
R
15
Typic Aquorthels; Larsemann Hills; Mergelov et al. (
2014
)
(H
2
O)
0-1
0.12
8.4
0.37
0.041
1-3
0.074
7.2
0.28
0.035
3-15
0.04
7.5
0.12
0.019
unusual discoveries in Antarctic pedology was the identifi cation of Spodorthels on
abandoned penguin rookeries near Casey Station (Beyer and Bölter
2000
). Whereas
the Spodorthels and Histels of East Antarctica are very strongly to extremely acid,
soils lacking the infl uence of birds or buildup of organic materials are neutral to
weakly alkaline. Soils of coastal East Antarctica have levels of silt, clay, SOC, total
N, CEC, and soluble salts that are intermediate between those of the WAP and the
inland mountains. Examples of soils occurring to a limited extent in coastal East
Antarctica are given in Fig.
9.2b, c
.
