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It covers an area of 923,769 square kilometres (356,669 sq mi), and with a population of over 230 million, it is the most populous country in Africa, and the world's sixth-most populous country. Nigeria borders Niger in the north, Chad in the northeast, Cameroon in the east, and Benin in the west.
- Portal:Nigéria
Nigéria, oficialmente a República Federal da Nigéria, é um...
- História da Nigéria
História da Nigéria. Em 800 a.C., Noque funda a primeira...
- Portal:Nigeria
Nigeria (/ n aɪ ˈ dʒ ɪər i ə / ⓘ ny-JEER-ee-ə), officially...
- Portal:Nigéria
- Overview
- Land
- Relief
- Drainage
- Soils
Nigeria, country located on the western coast of Africa. Nigeria has a diverse geography, with climates ranging from arid to humid equatorial. However, Nigeria’s most diverse feature is its people. Hundreds of languages are spoken in the country, including Yoruba, Igbo, Fula, Hausa, Edo, Ibibio, Tiv, and English. The country has abundant natural resources, notably large deposits of petroleum and natural gas.
The national capital is Abuja, in the Federal Capital Territory, which was created by decree in 1976. Lagos, the former capital, retains its standing as the country’s leading commercial and industrial city.
Nigeria is bordered to the north by Niger, to the east by Chad and Cameroon, to the south by the Gulf of Guinea of the Atlantic Ocean, and to the west by Benin. Nigeria is not only large in area—larger than the U.S. state of Texas—but also Africa’s most populous country.
Britannica Quiz
In general, the topography of Nigeria consists of plains in the north and south interrupted by plateaus and hills in the centre of the country. The Sokoto Plains lie in the northwestern corner of the country, while the Borno Plains in the northeastern corner extend as far as the Lake Chad basin. The Lake Chad basin and the coastal areas, including ...
The major drainage areas in Nigeria are the Niger-Benue basin, the Lake Chad basin, and the Gulf of Guinea basin. The Niger River, for which the country is named, and the Benue, its largest tributary, are the principal rivers. The Niger has many rapids and waterfalls, but the Benue is not interrupted by either and is navigable throughout its length, except during the dry season. Rivers draining the area north of the Niger-Benue trough include the Sokoto, the Kaduna, the Gongola, and the rivers draining into Lake Chad. The coastal areas are drained by short rivers that flow into the Gulf of Guinea. River basin development projects have created many large man-made lakes, including Lake Kainji on the Niger and Lake Bakolori on the Rima River.
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The Niger delta is a vast low-lying region through which the waters of the Niger River drain into the Gulf of Guinea. Characteristic landforms in this region include oxbow lakes, river meander belts (see meander), and prominent levees. Large freshwater swamps give way to brackish mangrove thickets near the seacoast.
Soils in Nigeria, and in Africa generally, are usually of a poorer quality than those in other regions of the world. However, over the centuries Nigerians have utilized agricultural techniques such as slash and burn, intercropping, and the use of shallow planting implements to cope with the shortcomings of the soil. In the precolonial period the country normally produced enough agricultural commodities to feed its population, and it even maintained a surplus for export.
Nigeria’s major soil zones conform to geographic location. Loose sandy soils consisting of wind-borne deposits and riverine sands are found in the northern regions, although, in areas where there is a marked dry season, a dense surface layer of laterite develops, making these soils difficult to cultivate. The soils in the northern states of Kano and Sokoto, however, are not subject to leaching and are therefore easily farmed. South of Kano the mixed soils contain locally derived granite and loess (wind-borne deposits). The middle two-thirds of the country, the savanna regions, contain reddish, laterite soils; they are somewhat less fertile than those of the north because they are not subject to as much seasonal drying, nor do they receive the greater rainfall that occurs in the more southerly regions. The forest soils represent the third zone. There the vegetation provides humus and protects it from erosion by heavy rainfall. Although these soils can readily be leached and lose their fertility, they are the most productive agriculturally. Hydromorphic and organic soils, confined largely to areas underlain by sedimentary rocks along the coast and river floodplains, are the youngest soil types.
Política da Nigéria. A política da Nigéria realiza-se numa combinação de uma República federativa Democracia representativa Presidencial, pelo qual o Presidente da Nigéria (Muhammadu Buhari)é tanto chefe de estado como a chefe do governo, e de um sistema de pluripartidarismo. O Poder executivo é exercido pelo governo.
