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Sahel - Wikipedia
https://en.wikipedia.org/wiki/Sahel
The Sahel ( / səˈhɛl /; Arabic: ساحل sāḥil [ˈsaːħil], "coast, shore") 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 .
Desertification of the Sahel - PERC
https://www.perc.org/2004/06/01/desertification-of-the-sahel/
The arrival of the French in West Africa in the late nineteenth century altered the agricultural patterns of the Sahel. French policies that emphasized export crops and east-west trade from the interior to Atlantic port cities led more merchants and farmers to abandon trans-Saharan trade. By the 1920s, the region was showing signs of stagnation.
Agroforestry in the Sahel | Nature Geoscience
https://www.nature.com/articles/s41561-018-0112-x
The satellite-based view presented by Brandt and colleagues 1 reveals the continental-scale patterns in tree cover that emerge from countless individual and very localized trade-offs made by West...
Region in Focus: The Sahel – Africa Center for Strategic …
https://africacenter.org/in-focus/the-sahel/
Surge in Militant Islamist Violence in the Sahel Dominates Africa’s Fight against Extremists January 24, 2022 A 70-percent annual increase in violent events linked to militant Islamist groups in the Sahel propelled a new record of extremist violence in Africa in 2021. Spotlight A Crucial Moment in Chad’s Transition By Daniel Eizenga
Desertification In The Sahel - Vanderbilt University
https://my.vanderbilt.edu/greencities/files/2014/08/Sahel-background-info.pdf
The oceanic forcing of Sahel rainfall is amplified by land-atmosphere feedbacks. As the land dries out, there is less vegetation, less evaporation from the land, and more sunlight is reflected from the land. These processes further weaken the monsoon. This positive feedback also involves land degradation due to human interactions with the land.
Causes of desertification - Desertification - Eduqas - BBC …
https://www.bbc.co.uk/bitesize/guides/zctymnb/revision/4
The Sahel is a narrow belt of land which lies immediately to the south of the Sahara Desert and which extends across most of Africa. The main causes of …
Terrace Farming Advantages, Purpose, Types, And …
https://eos.com/blog/terrace-farming/
Terracing is an agricultural practice that suggests rearranging farmlands or turning hills into farmlands by constructing specific ridged platforms. These platforms are called terraces. The essential (and distinguishing) feature of terracing agriculture is excavating and moving topsoil to form farmed areas and ridges.
Stone bunds as soil and water conservation measures in …
https://farmingfirst.org/2012/09/stone-bunds-as-soil-and-water-conservation-measures-in-sahelian-countries/
Contour stone bunds are built with quarry rock or stones along the natural contour of the land to a height of 20-30 cm from the ground and spaced 20 to 50 m apart depending on the inclination of the terrain. The stone bunds form a barrier that slows down water runoff, allowing rainwater to seep into the soil and spread more evenly over the land.
Home - UNISS
The Sahel, the vast semi-arid region of Africa separating the Sahara Desert to the north and tropical savannas to the south, is as much a land of opportunities as it is of challenges. It is endowed with abundant human, cultural and natural resources, offering tremendous potential for rapid growth.
terrace cultivation | Definition, Images, & Facts | Britannica
https://www.britannica.com/topic/terrace-cultivation
terrace cultivation, method of growing crops on sides of hills or mountains by planting on graduated terraces built into the slope. Though labour-intensive, the method has been employed effectively to maximize arable land area in variable terrains and to reduce soil erosion and water loss. In most systems the terrace is a low, flat ridge of earth built across the slope, with a …
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