The Sahara Desert

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Transcript of The Sahara Desert

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DISTRIBUTION OF DESERTS

Annual precipitation in deserts is less than 250mm and less than 100mm in extreme deserts. Deserts have large diurnal temperature ranges.

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Rock desert

Sand desert

Stony desert

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Basins of inland drainage called playas or shotts

Dry ravines or wadis or arroyos

Alluvial fans can join together to form a bajada

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DESERT VEGETATION

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W ATER? IN THE DESERT?

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RIVER

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Re so urce s and Furt he r Re adingRobert G. Bailey (1998), Ecoregions, Springer-Verlag New York

Farouk El-Baz et al.,(1982), The Desert Realm, National Geographic

Tony Allan & Andrew Warren (1993), Deserts, Mitchell Beazley World Conservation Atlas

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