What is soil erosion?

How does it effect the environment?

What causes soil erosion?

Process of soil erosion

Preventing soil erosion

Where does it occur

Why should we be concerned?

• Water and wind carry soil and their pollutants to the lakes and Bay– Pollutants such as oil,grease, chemicals,

fertilizers, animal wastes and bacteria

• These pollutants threaten our water quality• Such soil erosion cost local government,

homeowners, and the construction industry millions of dollars a year

Water erosion

• Occurs from the chemical in the water, and the force of the flow of water in the river– These chemicals can break down rock

such as limestone and rock

• Water erosion starts with splash erosion

Sheet erosion

Gully Erosion

Rivulet Erosion

Other Types of Erosion• Wind Erosion

– Even though it doesn’t seem like big problem it does effect the areas of the world that are covered by a desert

• Glacier Erosion– ice erosion comes from glacier erosion– A combination of the water, ice and picked up

sediment create a powerful eroding machine

Types of Erosion Cont.

• Sea Erosion– Chemicals and other salts erode weak rock along

the coast such as limestone and chalk– The longshore drift then carries the eroded

material up the shore

• Soil Erosion– Flooding and wind can carry the topsoil away from

farmlands, which makes the soil then unfertile