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5 Identification of the Taxonomic Class of a Soil |
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Fig. 5.7 A profile of Calcic Petrogypsids. A calcic horizon occurs at 20 cm and petrogypsic at 40 cm depth
5.5.5 Salids
Key to Great Groups
Salids that are saturated with water in one or more layers within 100 cm of the mineral soil surface for 1 month or more in normal years.
Aquisalids, p. 72
Other Salids that are not saturated with water in one or more layers within 100 cm of the mineral soil surface for 1 month or more in normal years.
Haplosalids, p. 75
Aquisalids
Key to Subgroups
Aquisalids that have a gypsic horizon within 100 cm of the soil surface.
Gypsic Aquisalids
5.5 Key to Suborders of Aridisols |
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0 cm
Ak
15 cm
Bk
60 cm
Bym + 60 cm
Petrogy psic Horizon
Fig. 5.8 A soil profile showing Typic Petrogypsids (Total depth 75 cm). Petrogypsic horizon started at 60 cm depth
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5 Identification of the Taxonomic Class of a Soil |
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Other Aquisalids that have only a salic horizon and do not have other subsurface diagnostic horizons within the 100 cm of the soil surface. These soils represent the central concept of the great group (Fig. 5.9).
Typic Aquisalids
Fig. 5.9 A soilscape showing Typic Aquisalids in the coastal area