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Lake Débo
Lake Débo is a lake in the central part of Mali, formed by the seasonal flooding of the Niger River basin. It is in the Inner Niger Delta of the Niger River. During high water stages of the river, the delta formed by lakes, creeks, and backwaters form part of Lake Débo. The inner delta has many wide channels, which are shallow and flooded marshes; this delta extends over a length of with a width of . Lake Débo during high flow season, is at a distance of from Mopti on its upstream, on the southern end and from Timbuktu at its downstream, on the north-eastern end. It is the largest of many such seasonal wetlands and lakes which form the Inner Niger Delta, and the largest lake within Mali. Its size is largely reduced during the dry season of September to March. The existence of this lake called the "Great Lake" in the Inner Niger Delta, inner delta of Niger River between Djenné, Jenne and Timbuktu in Mali has been established after extensive study of maps of the region extendin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niger River
The Niger River ( ; ) is the main river of West Africa, extending about . Its drainage basin is in area. Its source is in the Guinea Highlands in south-eastern Guinea near the Sierra Leone border. It runs in a crescent shape through Mali, Niger, on the border with Benin and then through Nigeria, discharging through a massive River delta, delta, known as the Niger Delta, into the Gulf of Guinea in the Atlantic Ocean. The Niger is the third-longest river in Africa, exceeded by the Nile and the Congo River. Its main tributary is the Benue River. Etymology The Niger has different names in the different languages of the region: * Fula language, Fula: ''Maayo Jaaliba'' * Manding languages, Manding: ''Jeliba'' or ''Joliba'' "great river" * Tuareg languages, Tuareg: ''Eġərəw n-Igərǝwăn'' "river of rivers" * Songhay languages, Songhay: ''Isa'' "the river" * Zarma language, Zarma: ''Isa Beeri'' "great river" * Hausa language, Hausa: ''Kwara'' *Nupe language, Nupe: ''Èdù'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a Clastic rock#Sedimentary clastic rocks, clastic sedimentary rock composed mainly of grain size, sand-sized (0.0625 to 2 mm) silicate mineral, silicate grains, Cementation (geology), cemented together by another mineral. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's surface. Like uncemented sand, sandstone may be imparted any color by impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Because sandstone beds can form highly visible cliffs and other topography, topographic features, certain colors of sandstone have become strongly identified with certain regions, such as the red rock deserts of Arches National Park and other areas of the Southwestern United States, American Southwest. Rock formations composed of sandstone usually allow the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinochloa Stagnina
''Echinochloa stagnina'' (Burgu millet, bourgou, hippo grass) is a species of '' Echinochloa'' widespread in tropical Africa and Asia, with an invasive status in many Pacific islands. It was once one of the major grasses cultivated in the Inner Niger Delta of the Niger River The Niger River ( ; ) is the main river of West Africa, extending about . Its drainage basin is in area. Its source is in the Guinea Highlands in south-eastern Guinea near the Sierra Leone border. It runs in a crescent shape through Mali, Nige .... It was cultivated by the Fulani people, who used the seeds as food, and to make both alcoholic and nonalcoholic beverages. It tolerates floods well, and has been replanted in Africa, where it has helped to control erosion and provides hay for animals. A traditional food plant in Africa, this little-known grain has potential to improve nutrition, boost food security, foster rural development and support sustainable landcare. Local names * * Laotian: ປ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acacia
''Acacia'', commonly known as wattles or acacias, is a genus of about of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa, South America, and Australasia, but is now reserved for species mainly from Australia, with others from New Guinea, Southeast Asia, and the Indian Ocean. The genus name is Neo-Latin, borrowed from Koine Greek (), a term used in antiquity to describe a preparation extracted from '' Vachellia nilotica'', the original type species. Several species of ''Acacia'' have been introduced to various parts of the world, and two million hectares of commercial plantations have been established. Description Plants in the genus ''Acacia'' are shrubs or trees with bipinnate leaves, the mature leaves sometimes reduced to phyllodes or rarely absent. There are 2 small stipules at the base of the leaf, but sometimes fall off as the leaf matures. The flowers are borne in spik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cynodon Dactylon
''Cynodon dactylon'', commonly known as Bermuda grass, also known as couch grass in Australia and New Zealand, is a grass found worldwide. It is native to Europe, Africa, Australia and much of Asia. It has been introduced to the Americas. Contrary to its common name, it is not native to Bermuda and is in fact an abundant invasive species there. In Bermuda it has been known as "crab grass" (also a name for ''Digitaria sanguinalis''). Other names are ''Dhoob'', ''dūrvā'' grass, ''ethana'' grass, ''dubo'', dog grass, dog's tooth grass, Bahama grass, crab grass, devil's grass, couch grass, Indian ''doab'', ''arugampul'', grama, wiregrass and scutch grass. Hybrid species of Cynodon dactylon have been produced known as Cynodon dactylon x transvaalensis. These are Interspecific hybrids from cross-pollination of plants of different species. Vegetatively propagated Bermuda/couch hybrid varieties are developed by a selection of superior plants from established seeded or vegetatively prop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mopti
Mopti (Fulfulde: Mobti) is a town and an urban commune in the Inner Niger Delta region of Mali. The town is the capital of the Mopti Cercle and the Mopti Region. Situated 630 km northeast of Bamako, the town lies at the confluence of the Niger and the Bani Rivers and is linked by an elevated causeway to the town of Sévaré. The urban commune, which includes both Mopti and Sévaré, had a population of 114,296 in the 2009 census. Geography Mopti lies on the right bank of the Bani River, a few hundred meters upstream of the confluence of the Bani with the Niger River. Between August and December when the rivers flood the Inner Niger Delta, the town becomes a series of islands connected by raised causeways. During this period the only road access to the town is along a 12 km causeway that links Mopti to Sévaré. Mopti lies to the west of the Dogon Plateau and is 66 km northwest of Bandiagara and 76 km north-northeast of Djenné. The town is the capital ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tombouctou Region
Tombouctou Region or Timbuktu Region ( Bambara: ߕߎߡߎߕߎ ߘߌߣߋߖߊ, Tumutu Dineja) is one of the administrative regions of Mali. For administrative purposes, the region is subdivided into five cercles. The region is part of northern Mali that was separated and declared independent by the National Movement for the Liberation of Azawad (MNLA) during the Tuareg rebellion of 2012. In the course of the conflict, the MNLA lost control of the territory to Islamist militias. Tombouctou Region is world-famous for its capital, the ancient city Timbuktu (), synonymous to 19th-century Europeans with an elusive, hard-to-reach destination. The city gained fame in 1390 when its ruler, Mansa Musa I, went on a pilgrimage to Mecca, stopping with his entourage in Egypt and dispensing enough gold to devalue the Egyptian currency. This started the legend of a city in the interior of Africa, where roads were said to be paved with gold and buildings topped with roofs of gold. History The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sahel
The Sahel region (; ), or Sahelian acacia savanna, is a Biogeography, biogeographical region in Africa. It is the Ecotone, transition zone between the more humid Sudanian savannas to its south and the drier Sahara to the north. The Sahel has a Semi-arid climate#Hot semi-arid climates, hot semi-arid climate and stretches across the tropics, southernmost latitudes of North Africa between the Atlantic Ocean and the Red Sea. Although geographically located in the tropics, the Sahel does not have a tropical climate. Especially in the western Sahel, there are droughts in the Sahel, frequent shortages of food and water due to its very high Corruption Perceptions Index, government corruption and the semi-arid climate. This is exacerbated by very high list of countries by birth rate, birthrates across the region, resulting in a rapid increase in population. In recent times, various Coup Belt, coups, Foreign internal defense#Preemptive counterinsurgency in Africa, insurgencies, terrorism ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niamey
Niamey () is the capital and largest city of Niger. As the Niamey Urban Community (, CUN), it is a Regions of Niger, first-level division of Niger, surrounded by the Tillabéri Region, in the western part of the country. Niamey lies on the Niger River, primarily situated on the river's east bank. The capital of Niger since the Colony of Niger, colonial era, Niamey is an ethnically diverse city and the country's main economic centre. Before the French developed it as a colonial centre, Niamey was the site of villages inhabited by Fula people, Fula, Zarma people, Zarma, Maouri people, Maouri, and Songhai people, Songhai people. French expeditions first visited Niamey in the 1890s before Captain established a military post in 1901. Niamey replaced Zinder as the territorial capital from 1903 to 1911 and again in 1926, after which large-scale development occurred. The first city plan in 1930 relocated neighbourhoods and enacted Racial segregation, segregation of European and indigen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nomads
Nomads are communities without fixed habitation who regularly move to and from areas. Such groups include hunter-gatherers, Nomadic pastoralism, pastoral nomads (owning livestock), tinkers and Merchant, trader nomads. In the twentieth century, the population of nomadic pastoral tribes slowly decreased, reaching an estimated 30–40 million nomads in the world . Nomadic hunting and gathering—following seasonally available wild plants and game—is by far the oldest human subsistence method known. Pastoralists raise herds of domesticated livestock, driving or accompanying them in patterns that normally avoid depleting pastures beyond their ability to recover. Nomadism is also a Lifestyle (sociology), lifestyle adapted to infertile regions such as steppe, tundra, or desert, ice and sand, where mobility is the most efficient strategy for exploiting scarce resources. For example, many groups living in the tundra are reindeer herders and are semi-nomadic, following forage for their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erg Of Bara
The erg is a unit of energy equal to 10−7joules (100 nJ). It is not an SI unit, instead originating from the centimetre–gram–second system of units (CGS). Its name is derived from (), a Greek word meaning 'work' or 'task'. An erg is the amount of work done by a force of one dyne exerted for a distance of one centimetre. In the CGS base units, it is equal to one gram centimetre-squared per second-squared (g⋅cm2/s2). It is thus equal to 10−7 joules or 100 nanojoules ( nJ) in SI units. * 1 erg = = * 1 erg = = = * 1 erg = = * 1 erg = = * 1 erg = History In 1864, Rudolf Clausius proposed the Greek word () for the unit of energy, work and heat. In 1873, a committee of the British Association for the Advancement of Science, including British physicists James Clerk Maxwell and William Thomson recommended the general adoption of the centimetre, the gramme, and the second as fundamental units ( C.G.S. System of Units). To distinguish derived units, they recommende ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
