15-SSAfrica-1(GEOG142)

15-SSAfrica-1(GEOG142) - SUBSAHARAN AFRICA I (CHAPTER 6:...

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SUBSAHARAN AFRICA I (CHAPTER 6: 264-317)
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Major Geographic Qualities See page 266
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Physiography 20% of the earth’s surface Much of continent is far from maritime moisture Split by Equator No mountain chain backbone Mountains are mostly a deeply eroded plateau(s)-South Africa and Ethiopia
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Drakensberg Atlas Mts   Mt Kenya Mt Kilimanjaro Cape Ranges MOUNTAINS
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Physiography Split by Equator Hot rainy climate-Congo basin Winter dry season Farther you get from equator the drier it gets 40” of rain isn’t much in a hot climate Much of continent is far from maritime moisture Steppes are susceptible overgrazing-desertification
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Physiography Rainforests and savannas are a last refuge for wildlife from wildebeests to primates Millions of herbivores migrate on savannas Sport hunting introduced by Europeans have brought some animals near extinction Fences on private land/farms interfere with animal migration patterns National parks and corridors protect animals Eco-tourism Conflict of animal need with human need Poor soils
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CLIMATE
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VEGETATION
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Physiography Rift Valleys and Great elongated lakes Rifts are 20-60 miles wide and up to 6000 miles long Unusual river patterns-drain inland first Rivers have inland deltas-swamps/wetlands Plateaus & Escarpments-no real coastal plains Remnants of internal drainage basins
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NIGER SHAVI NILE CONGO ZAMBEZI R I V E R S
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DJOUF CHAD SUDAN CONGO KALAHARI ESCARPMENT B A S I N S
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AFRICA’S PHYSIOGRAPHY
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Physiography Plate Tectonics Pangaea Africa was the central land mass- a plateau Other continents pulled away causing the rifts Gondwana was southern part of supercontinent No continent colliding giant mountain chains
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PLATE BOUNDARIES
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High temperatures, & humidity create conditions which spreads disease easily GIS helps to map these conditions & patterns
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Tsetse flies spread trypanosomiasis-endmic to livestock and killer of humans Tsetse fly has kept Subsaharan Africa’s savannas open to wildlife until there’s cure
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This note was uploaded on 08/29/2011 for the course GEOG 142 taught by Professor Unknown during the Spring '11 term at Mott Community College.

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15-SSAfrica-1(GEOG142) - SUBSAHARAN AFRICA I (CHAPTER 6:...

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