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| Nutrient Regime | a very poor |
b poor |
c medium |
d rich |
e very rich |
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| Humus Form |
Mor | ||||||||
| Moder | |||||||||
| Mull | |||||||||
| A Horizon |
Ae horizon present | ||||||||
| A horizon absent | |||||||||
| Ah horizon present | |||||||||
| Soil Depth |
extremely shallow | ||||||||
| very shallow to deep | |||||||||
| Organic Matter Content |
low (light coloured) | ||||||||
| medium (intermediate in colour) | |||||||||
| high (dark coloured) | |||||||||
| Soil Texture |
coarse | ||||||||
| medium to fine | |||||||||
| Coarse Fragment Content |
high | ||||||||
| intermediate to low | |||||||||
| Parent Material Mineralogy |
base - low | ||||||||
| base - medium | |||||||||
| base - high | |||||||||
| Seepage or Flooding |
|||||||||
| temporary --------------> permanent | |||||||||
Biogeoclimatic Unit
Definitions | Edatopic
Grid of Soil Moisture and Nutrient Regimes
Soil Nutrient Regime Classes and Characteristics | Soil Moisture
Regime Classes and Characteristics