is referred to as cation exchange capacity or CEC. Soils are composed of a mixture of sand, silt, clay and organic matter. Both the clay and organic matter particles have a net negative charge. Thus, ...

What do glaciers and the Sahara Desert have in common? Both are sources of silt-size particles that interact with wind, sand, and vegetation to form loess deposits. Deflation, the lifting and ...

Sand particles are large and the spaces ... For comparison, soils with a higher silt and clay content have a CEC of around 30-40, while our sandy Florida soils have a CEC of around 3-5.