Global Environmental Issues: Desertification (Leaving Cert Geography): Flashcards
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Desertification definition
Desertification definition
Fertile land transforms into arid, desert-like terrain
Sahel region length
Sahel region length
Approximately 5,000 kilometres
Sahel region population
Sahel region population
Over 100 million people
Agricultural productivity decline in Sahel since 1960s
Agricultural productivity decline in Sahel since 1960s
30% decline
Temperature rise rate in Sahel per decade
Temperature rise rate in Sahel per decade
0.5°C per decade (double global average)
People facing acute food insecurity in Sahel
People facing acute food insecurity in Sahel
Over 31 million people
% of Sahel rangelands overgrazed
% of Sahel rangelands overgrazed
Approximately 70%
Forest cover reduction in Sahel since 1970s
Forest cover reduction in Sahel since 1970s
40% reduction
% of Sahel land affected by desertification
% of Sahel land affected by desertification
Over 45%
Refugees & internally displaced in Sahel (2021)
Refugees & internally displaced in Sahel (2021)
4.6M refugees, 7.5M internally displaced
Children under 5 with acute malnutrition in Sahel
Children under 5 with acute malnutrition in Sahel
7.4 million children
Overgrazing description
Overgrazing description
Excessive animals deplete vegetation, cause soil erosion
Overcropping description
Overcropping description
Planting crops repeatedly without rotation or rest periods
3 main environmental degradation processes in Sahel
3 main environmental degradation processes in Sahel
Overgrazing, overcropping, deforestation
People needing humanitarian assistance by 2023
People needing humanitarian assistance by 2023
Approximately 29 million