Sahel- [an example of an area on the fringe of hot deserts]

Question 1

Sahel:
What is desertification?

Answer 1

The process by which soil becomes dry and degraded, as a result of climate change or human activities.

Question 2

Sahel:
What ways of managing desertification?

Answer 2

-Afforestation (Great Green Wall 1km)
-Drip Irrigation (water supplied at a low pressure to =a plants roots)= increased efficiency.
-Drought Resistant Crops (e.g sorghum) survive during droughts and reduce soil erosion.
-Hydrophobic sand reduces water use since water does not infiltrate maintaining soil strength.