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Flashcards in The sahel Deck (10):
1

What is the process affecting the Sahel

Desertification

2

What is desertification

Process by which lands turns to desert

3

Explain how desertification occurs

Grassland overgrazed and less rain means more evapotranspiration, both leading to soil becoming bare which then is eroded by wind and water, then becoming infertile and therefore desert

4

Where is the Sahel

North Africa, under the Sahara desert crosses countries such as Ethiopia, Niger , Mali

5

How does desertification affect people ( 5 )

1/ Crops and cattle die, resulting in famine
2/ Lack of fuel woord
3/ Death
4/ Migrants move to cities resulting in overpopulation
5/ Malnutrition

6

How does desertification affect people ( 5 )

1/ Soil erosion - from wind and rain when it does come
2/ Sun baked, cracked soil, dry rivers
3/ Loss of plants and animals
4/ Growth of desert
5/ increase in sandstorms and flash floods

7

Name 3 solutions

1/ Plant trees
2/ "Magic stones"
3/ Appropriate technology

8

Explain why planting trees is a solution

Roots bind soil together, cheap, long term, can be used as fuel wood

9

Explain why magic stones are a solution

Planted across contour lines, they prevent surface run off and increases infiltration and soil fertility. Cheap to build and increases crop yield

10

Explain why appropriate technology is a solution and give examples

Boreholes for drinking water/irrigation