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Desertification

Desertification. Jedidah Jackson. http://www.visumsurf.ch/jahr_der_wueste/images/klima.jpg. What is it?.

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Desertification

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  1. Desertification Jedidah Jackson http://www.visumsurf.ch/jahr_der_wueste/images/klima.jpg

  2. What is it? • Desertification is “the processes by which an area becomes a desert, usually involving drought combined with the overexploitation of existing plant life” (Random House Webster’s College Dictionary) http://www.kew.org/science/tropamerica/images/peru/IMAGE-4-desertification.jpg

  3. What does that mean? • It means that Desertification is when land becomes a desert, because of lack of rain and not enough plant life http://www.worldproutassembly.org/images/desert_tunisia.jpg

  4. What happens to land in Desertification? • Demonstration Time! • I need 7 volunteers • Oh yeah, and Chris, too

  5. What just happened? • Chris (the rich top soil) couldn’t be pushed around by the wind very much because of all the plants standing around him • However, when the plants weren’t there, Chris went EVERYWHERE

  6. This is what happens in Desertification – there is not enough plant life to keep the rich, fertile top soil where it needs to be • Also, there isn’t enough rain to keep the top soil moist • The wind comes along and blows the top soil all over the place, exposing the less nutrient-rich soil underneath

  7. Because there is no nutrient-rich top soil, plants have a very hard time growing, because they don’t have enough food to eat • This continues the vicious cycle of no plant life to save the top soil from being blown all over by the wind

  8. This is when the land turns into a dry, barren DESERT http://chinadigitaltimes.net/wp-content/uploads/2008/11/china-desert.jpg

  9. That’s only in Africa… • No, it isn’t! Desertification is a threat to any place that doesn’t have a lot of rain and has few plants (or has overexploitation of the plants they do have) http://upload.wikimedia.org/wikipedia/commons/6/68/Desertification_map.png

  10. Is Oregon at risk for Desertification? • What do you think?

  11. What can WE do about Desertification? • Brainstorming/thinking shower time! • Think about the causes of Desertification and how we can prevent it! http://static.howstuffworks.com/gif/desertification-4.jpg

  12. Projects already in Action • International Day to Combat Desertification – June 17, 2009 http://www.unccd.int/images/june17/june17-big.jpg

  13. Activity Time!

  14. Resources • http://sgp.undp.org/intranet//img/projects/7167/VN-03-002-6.jpg • http://www.unccd.int/images/june17/june17-big.jpg • http://www.cite-sciences.fr/english/ala_cite/expositions/eau_pour_tous/img/maitriser_eau/desert_adritzz.jpg • http://chinadigitaltimes.net/wp-content/uploads/2008/11/china-desert.jpg • http://www.worldproutassembly.org/images/desert_tunisia.jpg • http://www.cpc.ncep.noaa.gov/products/predictions/tools/edb/sbfinal.gif • http://portal.unesco.org/es/files/33055/11492610633desertification.jpg/desertification.jpg • http://www.kew.org/science/tropamerica/images/peru/IMAGE-4-desertification.jpg • http://static.howstuffworks.com/gif/desertification-4.jpg • http://www.visumsurf.ch/jahr_der_wueste/images/klima.jpg • http://upload.wikimedia.org/wikipedia/commons/6/68/Desertification_map.png

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