what is soil erosion? how does it effect the environment?
TRANSCRIPT
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What is soil erosion?
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How does it effect the environment?
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What causes soil erosion?
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Process of soil erosion
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Preventing soil erosion
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Where does it occur
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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
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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
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Sheet erosion
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Gully Erosion
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Rivulet Erosion
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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
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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