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Vast Swampland of Sudan

Vast Swampland of Sudan
The As Sudd, which means barrier, is a vast, desolate swampland in south central Sudan. On its northerly course through Sudan, the White Nile-also called Bahr el-Jebel River-overflows into a saucerlike clay pan. The river's course is impeded by floating vegetation, known as sudd in Arabic, and it loses half its volume through evaporation and plant transpiration. North of the As Sudd at Lake No, the White Nile returns to a permanent channel when it receives the water of the Baḩr al Ghazāl flowing from the west.
Kazuyoshi Nomachi/Photo Researchers, Inc.
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