Desertification Flashcards
1
Q
Desertification
A
When an area turns into a desert
2
Q
The Sahel
A
- South of the Sahara desert
- West - East
- From Atlantic Ocean to Red sea
3
Q
Causes of desertification
A
- overgrazing
- deforestation
- civil war
- global warming
4
Q
Deforestation logging
A
To provide fuel wood for local communities and their growing populations
5
Q
Urbanisation
A
Urbanisation and building of roads and infrastructure increases surface run off and soil erosion
6
Q
Droughts
A
Long droughts dry out temporary surface water storage bodies like oases seasonal rivers and lakes
7
Q
Impacts of desertification
A
- Less farming means fewer crops and poorer soils
- food becomes more expensive
- cattle get thinner and die
- sell cattle so price goes down which increases poverty
- people migrate to urban areas
- starvation
8
Q
Magic stones
A
- permeable rock slows down surface run off
- soil absorbs water and minerals
- becomes more fertile
9
Q
Burkina Faso, Oxfam
A
- Watering can and stone model demonstrated to local people
- Local communities create the magic stones
- Little maintenance is needed
- Lasts a long time
10
Q
The Great green wall
A
- 11 countries
- 15km wide and 8000km long
- 11 million Acacia trees
- create shade/hold water in the roots and soil
- reversing desertification
- 200 woman paid well for working
- attendance at local schools increased
- $8 billion
- rapidly changing climate might destroy trees in the future, so money is lost
11
Q
Efficient stoves
A
- effective at burning fuel wood
- less fuel wood needed
- less desertification
- uses local materials
