1. Desertification

2. What is desertification?
Desertification is the term used to describe the spreading of deserts.
Soils lose the ability to hold moisture.
Desertification is taking place in the sahel region in Northern Africa.

4. Causes of desertification
Deforestation:
Trees are cut down for farmland due to growing population.
Trees are cut for fire wood.

5. Causes of desertification
Animals overgrazing:
Overgrazing on the land destroys the soil cover

7. Causes of desertification
Global warming:
Changes to patterns of rainfall

8. Solutions to desertification
Overgrazing of land can be prevented by reducing the number of cattle
Irrigation could make land suitable again for grazing cattle and farming

9. Solutions of desertification
Shelter belts
This is a line of trees planted to protect crops from the wind and to prevent soil erosion. This prevents soil from blowing away.