what is soil erosion? how does it effect the environment?

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