Concept
Sahel
Related concepts (30)
Senegal River
The Senegal River (Nehr es-Sinigâl, Fleuve Sénégal, Dexug Senegaal) is a long river in West Africa; much of its length marks part of the border between Senegal and Mauritania. It has a drainage basin of , a mean flow of , and an annual discharge of . Important tributaries are the Falémé River, Karakoro River, and the Gorgol River. The river divides into two branches once it passes Kaédi The left branch, called the Doué, runs parallel to the main river to the north. After the two branches rejoin a few kilometers downstream of Podor.
N'Djamena
N'Djamena (əndʒɑːˈmeɪnə ) is the capital and largest city of Chad. It is also a special statute region, divided into 10 districts or arrondissements. The city serves as the centre of economic activity in Chad. Meat, fish and cotton processing are the chief industries, and it is a regional market for livestock, salt, dates, and grains. It is a port city located at the confluence of the Logone River with the Chari River, forming a transborder agglomeration with the city of Kousséri (in Cameroon), capital of the Department of Logone-et-Chari, which is on the west bank of both rivers.
Lake Chad
Lake Chad (Kanuri: Sádǝ, Lac Tchad) is a freshwater lake located at the junction of Nigeria, Niger, Chad and Cameroon in central and western Africa. It is also an important wetland ecosystem in West Africa. The catchment area of Lake Chad is 1 million square kilometers. It used to be a large lake with an area of 28,000 square kilometers in the 19th century. However, due to climate change and human water diversion, Lake Chad has been greatly reduced since the mid-1970s, and its area has fluctuated between 2,000 and 5,000 square kilometers.
Mauritania
Mauritania, officially the Islamic Republic of Mauritania (الجمهورية الإسلامية الموريتانية), is a sovereign country in Northwest Africa. It is bordered by the Atlantic Ocean to the west, Western Sahara to the north and northwest, Algeria to the northeast, Mali to the east and southeast, and Senegal to the southwest. Mauritania is the 11th-largest country in Africa and the 28th-largest in the world, and 90% of its territory is situated in the Sahara. Most of its population of 4.
The Gambia
The Gambia, officially the Republic of The Gambia, is a country in West Africa. It is the smallest country within mainland Africa and is surrounded by Senegal, except for its western coast on the Atlantic Ocean. The Gambia is situated on both sides of the lower reaches of the Gambia River, the nation's namesake, which flows through the centre of The Gambia and empties into the Atlantic Ocean, and elucidates the long shape of the country. It has an area of with a population of 1,857,181 as of the April 2013 census.
Timbuktu
Timbuktu (ˌtɪmbʌkˈtuː ; Tombouctou; Koyra Chiini: Tumbutu; Tin Buqt) is a city in Mali, situated north of the Niger River. The town is the capital of the Tombouctou Region, one of the eight administrative regions of Mali and one town of Songhai people, having a population of 54,453 in the 2009 census. Timbuktu began as a seasonal settlement and became a permanent settlement early in the 12th century. After a shift in trading routes, particularly after the visit by Mansa Musa around 1325, Timbuktu flourished from the trade in salt, gold, ivory and slaves.
Köppen climate classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notably in 1918 and 1936. Later, German climatologist Rudolf Geiger (1894–1981) introduced some changes to the classification system, which is thus sometimes called the Köppen–Geiger climate classification.
Overgrazing
Overgrazing occurs when plants are exposed to intensive grazing for extended periods of time, or without sufficient recovery periods. It can be caused by either livestock in poorly managed agricultural applications, game reserves, or nature reserves. It can also be caused by immobile, travel restricted populations of native or non-native wild animals. Overgrazing reduces the usefulness, productivity and biodiversity of the land and is one cause of desertification and erosion.
Burkina Faso
Burkina Faso (bɜːrˌkiːnə_ˈfæsoʊ , -ˈfɑːsoʊ ; buʁkina faso, 𞤄𞤵𞤪𞤳𞤭𞤲𞤢 𞤊𞤢𞤧𞤮) is a landlocked country in West Africa with an area of , bordered by Mali to the northwest, Niger to the northeast, Benin to the southeast, Togo and Ghana to the south, and the Ivory Coast to the southwest. As of 2021, the country had an estimated population of 20,321,378. Previously called Republic of Upper Volta (1958–1984), it was renamed Burkina Faso by President Thomas Sankara. Its citizens are known as Burkinabè (bɜːrˈkiːnəbeɪ ), and its capital and largest city is Ouagadougou.
Central African Republic
The Central African Republic (CAR) is a landlocked country in Central Africa. It is bordered by Chad to the north, Sudan to the northeast, South Sudan to the east, the Democratic Republic of the Congo to the south, the Republic of the Congo to the southwest, and Cameroon to the west. The Central African Republic covers a land area of about . , it had an estimated population of around million. , the Central African Republic is the scene of a civil war, which is ongoing since 2012.