río volta
TRANSCRIPT
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Rio Volta
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● Lonxitude: 1500 km
(Volta Negro)● Superficie da cunca:
407.093 km2
● Países: Ghana, Burkina Faso, Malí, Costa de Marfil, Benín e Togo.
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TENA
KWAMISA
AGOU
HOMBORI
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CLIMA: tropical
RÉXIME: Pluvial con augas altas en setembro e outubro e baixas de xaneiro a maio.
CAUDAL: 1,210 m3/s
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NACEMENTO: Monte Tena, ou Tenakourou (Burkina Faso)
Volta Branco(Nakambé)
Volta Negro(Mouhoum)
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Volta BrancoVolta Negro
LAWRAMANÉ
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Volta BrancoVolta Negro
BOLGATANGA
Volta Vermello(Nazinon)
Kulpawn
YAPEI
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LAGOVOLTA
Oti
KPANDU
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ADA
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DESEMBOCADURA: Golfo de Guinea (Océano Atlántico)
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XEOLOXÍAO percorrido do río ten pouco desnivel en xeral, agás na primeira parte do curso alto.
Kafirguela (Burkina Faso)
Barras areosas no esteiro
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Fervenzas nas cabeceiras do Volta Negro.
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FLORAPlantas de sabana (acacias, gramíneas, arbustos espiñentos...) e nas beiras da auga manglares, palmeiras, xuncos, papiros...
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FAUNATípica da sabana e selva africana: búfalos,elefantes, crocodilos, antílopes, garzas, gansos, marabús...
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APROVEITAMENTOSubministro de auga para agricultura, vivendas, industrias e enerxía eléctrica; pesca, acuicultura, navegación, lecer...
Presa de Akosombo
Pescadores
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ESPAZOS PROTEXIDOSReserva Natural Selva das Fontes do MouhonParque Nacional Kaboré TambiParque Nacional Digya (No Lago Volta)
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O nome do río foi posto polos comerciantes de ouro portugueses, xa que era o seu punto máis alonxado antes de voltar á casa.Na súa cunca atópanse varios lugares declarados como Patrimonio da Humanidade: -Edificios tradicionais dos Ashanti -Castelos e fortes do Lago Volta.
DATOS HISTÓRICOS
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CURIOSIDADES
Lago Volta: o lago artificial máis grande do mundo. Formouse en 1965 cando a represa de Akosombo contivo as augas do río Volta. Ten 520 km de lonxitude, unha profundidade máxima de 75 m e un volume de 148 km³.
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PROBLEMASContaminación, secas, alteración de ecosistemas polas obras...
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Laura Domínguez Otero IES Francisco Asorey
David Aragunde CalvoAdela Leiro, Isaac Pontanilla