Order:
[ ]
| Code |
Name |
Description |
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Inceptisols that have one or more of the following:
- In a layer above a densic, lithic, or paralithic contact or in a layer at a depth between 40 and 50 cm from the mineral soil surface, whichever is shallower, aquic conditions for some time in normal years (or artificial drainage) and one or more of the following:
- A histic epipedon; or
- A sulfuric horizon that has its upper boundary within 50 cm of the mineral soil surface; or
- A layer directly under the epipedon, or within 50 cm of the mineral soil surface, that has, on faces of peds or in the matrix if peds are absent, 50 percent or more chroma of either:
- 2 or less if there are redox concentrations; or
- 1 or less; or
- Within 50 cm of the mineral soil surface, enough active ferrous iron to give a positive reaction to alpha,alpha-dipyridyl at a time when the soil is not being irrigated; or
- An exchangeable sodium percentage (ESP) of 15 or more (or a sodium adsorption ratio [SAR] of 13 or more) in half or more of the soil volume within 50 cm of the mineral soil surface, a decrease in ESP (or SAR) values with increasing depth below 50 cm, and ground water within 100 cm of the mineral soil surface for some time during the year.
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Other Inceptisols that have a plaggen or anthropic epipedon. |
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Other Inceptisols that have a cryic soil temperature regime. |
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Other Inceptisols that have an ustic soil moisture regime. |
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Other Inceptisols that have a xeric soil moisture
regime. |
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Other Inceptisols that have a udic soil moisture
regime. |
Source:
Keys to Soil Taxonomy, Eighth Edition. 1998.
Links:
> > Suborders
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