Geoscience Reference
In-Depth Information
Table 19.1
Properties of soils with an oxic horizon (Source: NRCS Soil Lab Data)
Depth
(cm)
Clay
(%)
Silt
(%)
Clay/
1,500 kPa
Bulk den.
(g/cm
3
)
CEC7
(cmol
c
/kg)
Horizon
OC (%)
pH
Al sat. (%)
Base sat. (%)
Fe
d
(%)
Al
d
(%)
Lihue: very fine, ferruginous, isohyperthermic Rhodic Eutrustox; Kauai, HI (Pedon No. 40A5639)
Ap1
0-15
0.97
2.66
19.1
13.0
Ap2
15-30
1.05
2
17.3
12.9
Bo1
30-53
1.14
0.45
7.9
14.4
Bo2
53-68
1.22
0.37
7.3
14.8
Bo3
68-120
1.21
0.42
7.4
15.8
Bo4
120-150
1.19
0.44
8.3
16.2
Bayamon: very fine, kaolinitic, isohyperthermic Typic Hapludox; ManatiMunicipio, PR (Pedon No. 40A1257)
Ap1
0-14
68.7
6.9
0.32
1.74
4.0
10.4
60
12
7.1
1
Ap2
14-28
68.8
5.5
0.34
1.72
1.52
3.6
8.5
78
13
7.1
0.9
Bo1
28-49
70.1
3.8
0.36
1.48
0.24
3.7
5.2
92
6
6.4
0.9
Bo2
49-83
66.2
3.3
0.35
1.56
0.23
3.7
5
89
8
6.2
0.9
Bo3
83-117
63.5
4.7
0.35
1.48
0.17
3.7
5.2
88
8
6.1
0.9
Bo4
117-152
67.7
7.9
0.35
1.57
0.16
4.6
6.3
16
67
7.0
0.9
Bo5
152-165
72.2
17.0
0.34
1.44
0.1
4.6
5.7
12
65
8.0
1
Gagil: fine, sesquic, isohyperthermic Typic Haploperox; Yap, Micronesia (Pedon No. 80P0308)
A
0-10
2.68
5.1
13
Bo1
10-20
4.9
10
Bo2
20-45
4.9
9.6
C
45-150
(continued)
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