Tips It's used to rich, well-drained soils with deep mulch to hold moisture.
These give way to soils with accumulations of lime and ultimately to desert soils with soluble salt efflorescence (powdery crust) near the surface.
Extreme heat causes the water to evaporate, leaving behind clays and sand soils with a high concentration of minerals.
Lateritic soils, with a high proportion of iron and aluminum sesquioxides, characterize low-lying areas.
Spodosols are ashy gray, acidic soils with a strongly leached surface layer.
Chernozems rich brown and black soils with a deep humus layer underlie the prairies and parklands.
Soils with dominant clay minerals in the intermediate stage do this in less than a century, whereas soils with dominant clay minerals in the advanced stage need several hundred years to form a centimetre of solum.
Swamp, wetland ecosystem characterized by mineral soils with poor drainage and by plant life dominated by trees.
Alfisols are arable soils with water content adequate for at least three consecutive months of the growing season.
The developed soils with limited degradation have high CI values.
Overall, urbanization consumed soils with progressively higher quality.
