Geoscience Reference
In-Depth Information
Table 24.3 Analytical properties of soils with lamellae (Source: USDA, NRCS; published in Bockheim and Hartemink
2013
)
Depth
(cm)
OC
(%)
CEC
(cmolc/kg)
Base sat.
(%)
CDB Fe
(%)
Horizon
Clay (%) Silt (%) Sand (%) VCS (%) CS (%) MS (%) FS (%) VFS (%)
pH
Spinks: sandy, mixed, mesic Lamellic Hapludalfs (Pedon S10MI117001)
Ap
0-28
3.9
10.7
85.4
4.0
4.9
31.6
37.3
7.6
0.6
5.4
0.3
100
0.3
Bw
28-50
3.8
11.5
84.7
10.2
16.4
25.4
26.0
6.4
0.1
6.3
1.7
59
0.3
B/E (Bt part)
50-83
10.6
4.9
84.5
20.2
21.4
24.3
16.4
2.2
0.2
7.0
4.9
100
0.8
B/E (E part)
50-83
2.2
5.4
92.4
17.3
23.6
28.6
20.0
2.5
2.6
8.2
0.8
100
0.2
E & Bt
83-190
1.8
2.3
95.9
0.1
0.1
13.6
77.6
4.5
0.0
7.8
1.3
100
0.2
C
190-200
0.6
4.6
94.8
14.5
28.5
32.1
17.3
2.3
2.7
8.4
0.5
100
0.1
Coloma: mixed, mesic Lamellic Udipsamments (Pedon 93IN039015)
Ap
0-30
3.7
5.1
91.2
0.7
5.6
44.1
36.8
4
0.37
7.0
2.5
100
E1
30-51
4.2
6.5
89.3
1.4
6.5
42
35.4
4
0.14
7.2
1.7
100
E2
51-69
3.5
5.6
90.9
2.2
6.5
42.5
36.3
3.4
0.1
7.0
1.4
79
E3
69-94
2.5
3.9
93.6
1.2
5.3
37.2
43.3
6.6
0.07
7.0
1.2
83
E4
94-119
1.9
2.6
95.5
0.4
3
34.6
47.9
9.6
0.04
6.9
0.9
78
E & Bt (E part)
119-203
1.6
3.1
95.3
0.1
1.4
30.9
53.7
9.2
0.03
6.5
0.9
56
E & Bt (Bt part)
119-203
8.1
0.9
91
0.2
0.9
29.7
56.8
3.4
0.06
6.0
3.4
65
Colonie: mixed, mesic Lamellic Udipsamments (Dijkerman et al.
1967
)
Ap
0-23
4.6
46.2
49.2
1.42
15.3
57
0.63
Bw1
23-38
2.4
25.6
72.0
0.31
6.2
32
0.42
Bw2
38-71
1.5
25.7
72.8
0.09
3.0
30
0.42
Bt1
71-76
1.9
27.7
70.4
0.1
4.2
28
0.56
E1
76-107
0.5
30.4
69.1
0.04
2.1
38
0.42
Bt2
107-114
3.8
21.4
74.8
0.05
3.9
46
0.63
E2
114-147
1.0
19.9
79.1
0.04
2.7
52
0.49
E3
147-201
0.6
16.2
83.2
0.04
2.4
54
0.42
Bt3
201-203
9.3
11.4
79.3
0.06
5.5
62
0.84
E4
203-229
0.4
16.4
83.2
0.02
2.3
65
0.49
Bt4
229-234
9.8
14.5
75.7
0.02
6.0
58
0.91
BC
234-269
1.9
15.1
83.0
0.02
3.0
57
0.56
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