Geoscience Reference
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Table 18.2 Frequency distribution of morphological features of soils with
50 % ortstein, and geographically associated Spodosols without
ortstein. Percent of total is given in parentheses. Data for seven soils with placic horizons are included (Bockheim
2011
)
Soil property
50 % ortstein,
>
<
Category
Structure grade
Massive
Platy
Subangular blocky Other or not reported
Ortstein
30 (64)
3 (6)
3 (6)
11 (24)
Some ortstein
7 (26)
1 (2)
21 (74)
13 (31)
No ortstein
3 (5)
0
32 (54)
24 (41)
Placic
2
1
1
3
Moist consistence
Extremely firm Very firm
Firm
Slightly hard or less
Not reported
Ortstein
10 (21)
10 (21)
7 (15)
1 (2)
19 (41)
Some ortstein
0
1 (2)
2 (5)
32 (76)
7 (17)
No ortstein
0
1 (2)
4 (7)
53 (89)
1 (2)
Placic
4
2
0
0
1
Particle-size class
Sandy
Sandy-skeletal Sandy/(other)
Coarse-loamy
Loamy
Clayey or finer Other
Ortstein
31 (66)
4 (9)
2 (4)
3 (6)
3 (6)
0
4 (9)
Some ortstein
26 (62)
6 (14)
6 (14)
2 (5)
0
0
2 (5)
No ortstein
28 (47)
4 (7)
5 (9)
10 (17)
0
0
12 (20)
Placic
0
0
0
0
1
3
3
Soil moisture regime
Udic
Aquic
Ortstein
25 (53)
22 (47)
Some ortstein
30 (71)
12 (29)
No ortstein
42 (71 )
17 (29)
Placic
2
5
Soil temperature regime Cryic
Frigid
Mesic
Hyperthermic
Isomesic
Other
Ortstein
4 (8)
14 (30)
12 (26)
11 (23)
6 (13)
0
Some ortstein
0
24 (57)
8 (19)
5 (12)
1 (2)
4 (10)
No ortstein
9 (16)
33 (56)
2 (3)
12 (20)
3 (5)
0
Placic
1
0
0
0
1
5
(continued)
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