Water and Wind Erosion

2. Name:
Muhammad Hanzla
Shehzad
 Roll no:
BAGF17E317
 Semester:
6th SES

3. TOPIC:
•Forms, Causes and Damages Of
Water and Wind Erosion

4. Erosion:
•Erosion is a natural process,
accelerated by farming activity,
that removes top soil and
reduces the organic matter in
soils and contributes to the break
down of soil structures.

6. Types of Erosion :
A. Two main types of erosion:
1) Geological Erosion ( natural).
2)Accelerated Erosion
(because of poor management)

7. • It involves wind erosion and water
erosion, which are discussed below:

8. Wind Erosion :

9. Factors of wind Erosion:
•Soil Texture
•Soil Structure
•Surface Relief
•Rainfall
•Wind Force
•Soil Protection By Plant or Plant
Residues

10. Causes Of Wind Erosion:
•Bare , unprotected soils are more
vulnerable to wind erosion .
•Erosion occurs with strong turbulent
winds blowing across a soil surface
that is smooth ,loose and dry.
•Slightly larger soil particles bounce
or roll along the soil surface.

13. Damages:

15. Water Erosion:
•Water erosion is the detachment and
removal of soil material by water
.The process may be natural or
accelerated by human activity .The
rate of water erosion may be very
slow to very rapid , depending upon
the soil , the local landscapes ,and
weather conditions .

17. Forms of Water Erosion:

25. Types OF Gullies:
•U - Shaped
•V -Shaped

28. Damages of Water Erosion:
•Land Degradation