Geoscience Reference
In-Depth Information
Rain
Good soil structure
Good infiltration and air movement
Slaking is the process in which
aggregates 'explode' due to the pressure
of air being trapped inside as they wet up
thus forming micro-aggregates
Stable aggregate
(0.5-5mm diameter)
Micro-aggregates
Slaking
The soil's 'electrical properties' may not be
able to overcome the natural repulsion of the
clay particles and break down into clay size
particles. This is called dispersion
Dispersion
Micro-aggregates
Clay particles
Hardsetting, lack of tilth,
crusting, clodiness
Clay particles
(less than 0.002 mm diameter)
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