Geoscience Reference
In-Depth Information
Table 4.1 Properties of selected soils with a melanic epipedon (source: NSSC SSL)
Depth
(cm)
Clay
(%)
Silt
(%)
1500 (kPa)/
clay (%)
Db
(g/cm
3
)
OC
(%)
pH
H
2
O
Fed
(%)
Ald
(%)
Feo
(%)
Alo
(%)
CEC7
(cmol
c
/kg)
Al sat
(%)
Base
sat. (%)
P fix.
(%)
Horizon
Bear Prairie: medial, ferrihydritic, mesic Pachic melanudands (Pedon No. 40A5547)
O
0-2
19.5
53.6
13.2
A11
2-6
17.4
56.4
1.53
0.74
11.4
5.4
41
2
A12
6-14
17.5
55.8
1.59
0.67
11.9
5.2
77
1
A2
14-25
11.6
60.0
1.97
0.7
5.0
5.6
91
1
B1
25-38
18.3
62.4
1.19
1.13
1.16
5.6
67
1
B2
38-44
17.0
57.8
1.30
1.11
0.58
5.6
89
1
2C
45-54
9.5
47.8
2.87
1.06
0.47
5.7
80
1
Lauren: medial over loamy, ferrihydritic over isotic, isomesic Typic Melanudand (Pedon No. 40A0991)
CEC8
Ap
0-15
20.3
45.0
0.71
3.72
5.9
2.7
35.9
56
A
15-51
20.8
42.8
0.69
2.49
5.9
1.2
32.6
55
B1
51-84
18.0
40.3
0.66
0.92
6.2
1.5
29
63
B2
84-112
10.4
25.9
0.96
0.28
6.4
1.8
24
78
C1
112-132
6.9
17.0
1.22
0.10
6.5
1.3
20.5
79
C2
132-178
6.2
11.2
1.13
0.03
6.6
1.1
18.6
82
Quillamook: medial, mixed, isomesic Pachic Melanudands (Pedon 488P0043)
A1
0-15
15.9
38.9
1.05
9.44
4.9
88
A2
15-38
1.63
39.4
0.95
6.09
5.4
100
AB
38-66
17.1
39.9
0.81
4.68
5.5
100
Bw1
66-79
15.7
42.0
0.89
4.22
5.6
98
Bw2
79-109
13.3
42.5
1.11
3.71
5.6
100
(continued)
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