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The Sahel region (/ s ə ˈ h ɛ l /; from Arabic ساحل (sāḥil) 'coast, shore'), or Sahelian acacia savanna, is a biogeographical region in Africa.It is the transition zone between the more humid Sudanian savannas to its south and the drier Sahara to the north.
The Sahel forms a belt up to 1,000 km wide, spanning Africa from the Atlantic Ocean to the Red Sea Main article: History of West Africa The Sahelian kingdoms were a series of centralized kingdoms or empires that were centered on the Sahel , the area of grasslands south of the Sahara , from the 8th century to the 19th.
The Sahel acacia savanna, a belt of drier grasslands, lies to the north, forming a transition zone between the Sudanian savanna and the Sahara Desert phytochorion. To the Sudan's south, the more humid forest-savanna mosaic forms a transition zone between the Sudanian savanna and the Guineo-Congolian forests that lie nearer the equator.
The Sahel has a hot semi-arid climate. South of the Sahel, a belt of savanna (the West and East Sudanian savannas) stretch from the Atlantic Ocean to the Ethiopian Highlands. The more humid Guinean and Northern Congolian forest–savanna mosaic lie between the savannas and the equatorial forests.
The Sahel in the north typically receives less than 600 millimeters (24 inches) of rainfall per year and has high temperatures, 5–47 degrees Celsius (41–117 degrees Fahrenheit). A relatively dry tropical savanna, the Sahel extends beyond the borders of Burkina Faso, from the Horn of Africa to the Atlantic Ocean, and borders the Sahara to ...
The Sahel region is a climate zone sandwiched between the Sudanian Savanna to the south and the Sahara desert to the north, across West and Central Africa. While the frequency of drought in the region is thought to have increased from the end of the 19th century, three long droughts have had dramatic environmental and societal effects upon the ...
States in the Sahel / Savanna about 1750. Humans have lived in the inner Chad Basin from at least eight thousand years ago, and were engaging in agriculture and livestock management around the lake by 1000 BC. Permanent villages were established to the south of the lake by 500 BC at the start of the Iron Age. [15]
The East Sudanian savanna is the eastern half of the Sudanian savanna belt which runs east and west across Africa. The eastern lies east of the Cameroon Highlands, and west of the Ethiopian Highlands. The Sahel belt of drier acacia savanna lies to the north, and beyond that is the Sahara Desert.