Case Study: Drought and Desertification in the Sahel (Leaving Cert Geography): Flashcards
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Sahel location in Africa
Sahel location in Africa
Between Sahara Desert & savannas/rainforests to south
Length of Sahel region
Length of Sahel region
5,400 kilometres
Economic foundation of Sahel
Economic foundation of Sahel
Agriculture (crop cultivation & livestock rearing)
Average temp range in Sahel
Average temp range in Sahel
25°C to 30°C
Sahel rainy season months
Sahel rainy season months
June to September
Sahel annual rainfall
Sahel annual rainfall
200-600 millimetres
Harmattan wind
Harmattan wind
Dry, dusty north-easterly trade wind from Sahara
Sahel temp increase last century
Sahel temp increase last century
0.5-1.5°C (IPCC)
Sahel water resources decline
Sahel water resources decline
40 per cent
% Sahel farmlands degraded
% Sahel farmlands degraded
80% (UNEP)
% Sahel land affected by desertification
% Sahel land affected by desertification
Over 45%
% Sahel workforce in agriculture
% Sahel workforce in agriculture
60-80%
% Sahel rangelands overgrazed
% Sahel rangelands overgrazed
70%
Sahel population projection 2050
Sahel population projection 2050
From 135 million to over 340 million
Water table drop rate per year
Water table drop rate per year
Up to 2 metres