Dams
Name that Dam
1
2
3
4
5
<ul><li>Reasons for building dams: </li></ul><ul><li>Water storage for drinking, industry or irrigation. </li></ul><ul><li...
 
<ul><li>Disadvantages of dams: </li></ul><ul><li>1% of a dam’s capacity is lost through silting each year. </li></ul><ul><...
 
 
 
 
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IB Geography: Drainage Basins: River Managemen: Dams

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Transcript of "IB Geography: Drainage Basins: River Managemen: Dams"

  1. 1. Dams
  2. 2. Name that Dam
  3. 3. 1
  4. 4. 2
  5. 5. 3
  6. 6. 4
  7. 7. 5
  8. 8. <ul><li>Reasons for building dams: </li></ul><ul><li>Water storage for drinking, industry or irrigation. </li></ul><ul><li>Hydroelectric power. </li></ul><ul><li>Flood control. </li></ul><ul><li>Regulation of river flow for navigation (river regime). </li></ul><ul><li>Other advantages: </li></ul><ul><li>Fish stocking. </li></ul><ul><li>Tourism. </li></ul><ul><li>Political reasons. Building dams shows the international community that economic development is occurring, so that overseas investors may choose that country. </li></ul>
  9. 10. <ul><li>Disadvantages of dams: </li></ul><ul><li>1% of a dam’s capacity is lost through silting each year. </li></ul><ul><li>There is increased likelihood of bank erosion downstream. </li></ul><ul><li>No renewal of fertile soils. </li></ul><ul><li>No input in dynamic depositional landforms like deltas. </li></ul><ul><li>Flooding areas of woodland and vegetation leads to rotting vegetation and huge releases of methane and carbon dioxide (greenhouse gases). </li></ul><ul><li>The displacement of people. </li></ul><ul><li>Huge cost – source of money (tied aid?) </li></ul>

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