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The Sahel is one of the most investigated areas in Africa because of its highly complex and sensitive human and environmental dynamics. The Sahel is a transition zone between the pure desert of Sahara and the woody savanna of the Sudanean zone further south.
- Cheikh Mbow
- 2017
Nov 20, 2020 · In pure geographic terms the Sahel, or Sahil in Arabic, meaning coast or shore, is a vast region that stretches along the Sahara desert's southern rim from the Atlantic to the Red Sea. Wedged...
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What is a Sahel region?
Within some 1,000 km, the environment transitions from the hyper-arid Sahara Desert to forests with over 1,200 mm of rainfall per year. The Sahel region of West Africa is a semi-arid expanse of grassland, shrubs, and small, thorny trees lying just south of the Sahara.
Sep 18, 2019 · How much it rains in the Sahel over decades to centuries is primarily controlled by very large-scale influences, such as the temperatures of the global oceans, not by how much vegetation there is. The Great Green Wall — a project that aims to plant a vast wall of trees across North Africa — cannot prevent an expansion of the Sahara.
The densest vegetation correlates well with areas of heavy rainfall, shown in dark blue in the lower image. The correlation reveals that the Sahel is not becoming a desert on a large scale, though localized land degradation could be occurring.
Jun 17, 2019 · The Sahel lands are grasslands and savannahs, with scrub areas to the north, alternating areas of trees, mainly acacias, in the south.
The Sahel, a semi-arid region in Africa, is nestled between the Sahara Desert and more fertile savannas to the south. With sandy soils, sparse vegetation, and recurring droughts, this region faces unique challenges.
