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Monday, 20 September 2021


Ecoclimatic and biogeographic transition zone in Africa


The Sahel is the ecoclimatic and biogeographic realm of transition in Africa between the Sahara to the north and the Sudanian savanna to the south. Having a semi-arid climate, it stretches across the south-central latitudes of Northern Africa between the Atlantic Ocean and the Red Sea. The name is derived from the Arabic term for "coast, shore"; this is explained as being used in a figurative sense. However, such figurative use is unattested in Classical Arabic, and it has been suggested that the word may originally have been derived from the Arabic word sahl سهل "plain" instead.

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