The soil is rich in silt, making the plain one of the most intensely farmed areas of the world.

An example of advection is the transport of pollutants or silt in a river by bulk water flow downstream.

The Atterberg limits can be used to distinguish between silt and clay, and it can distinguish between different types of silts and clays.

As the city grew, this aqueduct was no longer able to provide enough water of sufficient quality the springs contained a small amount of silt in the summer, and sometimes even ran dry.