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Okavango Delta

Okavango Delta. By Linda Tucker. Geography. Characteristics. Over 10 k m 3 of water flows through delta annually Vast array of channels, lagoons, oxbow lakes, and islands Seasonal flooding Majority of flood waters come from the highlands of Angola, approx. 2000 km away

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Okavango Delta

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  1. Okavango Delta By Linda Tucker

  2. Geography

  3. Characteristics • Over 10 km3of water flows through delta annually • Vast array of channels, lagoons, oxbow lakes, and islands • Seasonal flooding • Majority of flood waters come from the highlands of Angola, approx. 2000 km away • Flood waters arrive during dry season due to low gradient of river • Water surface expands from 2500 km2 in February up to 12000 km2 in August

  4. Where Does All the Water Go? • 60% taken up by plants • 36% evaporates • 2% makes its way into groundwater • 2% flows out of the delta to the Boteti River or Lake Ngami

  5. Animal Life

  6. Plant Life

  7. Threats • Increased burning • Clearing for crop production or livestock • Extraction of water from the river by countries upstream (such as Angola and Namibia) • Pollution upstream • Tourism

  8. References • Mitsch, W.J. & Gosselink, J.G. (2007). Wetlands (4thed). Hoboken, NJ: John Wiley & Sons. • http://www.orc.ub.bw/downloads/FS1_waters.pdf • http://www.botswanatourism.co.bw/okavangoDelta.php • http://www.okavangodelta.com/ • http://www.eosnap.com/rivers/floodwaters-move-towards-bottom-of-okavango-delta-botswana/

  9. Questions?

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