Case Study: Causes, Impacts and Implications of Desertification for Local Scale Sustainable Development (AQA A-Level Geography): Flashcards
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Touat-Adrar region location
Touat-Adrar region location
Southern Algeria, Northern Sahara Desert
Annual rainfall Touat-Adrar
Annual rainfall Touat-Adrar
Average 50mm per year
Foggaras
Foggaras
Underground tunnels transporting water with minimal evaporation
Main well distance from oasis
Main well distance from oasis
Approx. 2.5 km upstream
Foggaras pipe gradient
Foggaras pipe gradient
1-2 mm/m downward incline
Kesria
Kesria
Comb-like stone device dividing water fairly
Algeria population growth rate
Algeria population growth rate
Almost 2% per year
Oases
Oases
Desert areas where groundwater enables vegetation & settlement
Access shaft spacing foggaras
Access shaft spacing foggaras
Every 20-30 metres
NGO collaboration start
NGO collaboration start
2017-2018