Natural vegetation in the world (Regent Secondary E learning Assignment)


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Lesson on Natural Vegetation for Secondary 1 Regent Secondary School

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Natural vegetation in the world (Regent Secondary E learning Assignment)

  1. 1. Sec 1 Geography E Learning
  2. 2. The relationship between climate and vegetationCharacteristics of the major types of natural vegetation in the worldDescribe and compare the sub types of vegetationBenefits of natural vegetation to people
  3. 3. Plants which are grown naturally and not done by man.Forests, Grasslands & Desert Vegetation
  4. 4. Forests  Tropical Rainforest
  5. 5. Forest  Temperate Deciduous Forest
  6. 6. Forests  Temperate Coniferous Forest
  7. 7. Grasslands  Tropical Savannah
  8. 8. Grasslands  Temperate grasslands
  9. 9. Desert  Hot desert vegetation
  10. 10. Desert  Cold Tundra vegetation
  11. 11. Remember: Rainfall and Temperature, and differences between amount of sunlight.Climate Vegetation relationship
  12. 12. Large areas of land that consist mainly of trees and a variety of other plantsTypes of forests differ according to different climatesGeog. Textbook pg. 159
  13. 13. Thrives in warm tropical climates, with temperatures of 20°C to 30°C. Also has rainfall ranging from 1000mm to 2000mm
  14. 14. Characteristics of tropical rainforests  Evergreen  Trees have waxy drip tip leaves  Trees have broad leaf surfaces to absorb as muh sunlight as possible.  Trees grow very close to one another, making it dense in nature
  15. 15. Three layers of tropical rainforests  Emergent, Canopy, Undergrowth
  16. 16. Undergrowth  Made of shrubs, grasses, ferns, mosses and fungi  Plant growth is sparse because very little sunlight reaches this layer.
  17. 17. Canopy  Tall trees reaching a height of 15 to 30 metres  Crowns of trees interlock to form a continuous leaf cover  Canopy blocks out 70 to 100 percent of sunlight.
  18. 18. Emergent  Height of 40 to 50 metres  Trees receive more sunlight at this layer and have buttress roots for support
  19. 19. Occurs largely in temperate regions  Two main types:  Temperate Deciduous Forests  Temperate Coniferous Forests
  20. 20. Vegetation thrives in temperatures from -2°C to 18°C and rainfall ranging from 750mm to 1800mmVegetation has leaves where it falls off to prevent water loss, in times where there is little water
  21. 21. Properties  Nature of layers change across the seasons.  Read pg. 167 (Questions will be asked from there!!!)
  22. 22. Found in places where temperatures range from -12°C to 10°C. Rainfall at 300mm to 750mmCalled coniferous due to it’s conical shape.Questions will be asked from textbook pg. 168
  23. 23. Two types of Grasslands  Tropical Savannah  Temperate GrasslandsOccurs in areas where rainfall is seasonal in nature.
  24. 24. Found in places in the tropics  Characterised with tall grasses along with scattered trees.  Trees have large trunks to help store water.
  25. 25. Trees have small leaves to prevent water loss through Transpiration
  26. 26. Found in seasonal climates, which can be very hot in summer and cold in winter.Dry climate with strong windsTemperatures range between -20°C and 10°C
  27. 27. Grasses tend to be shorter due to lack of rainfall.Trees are scarce.
  28. 28. Hot Desert Vegetation and Cold Tundra VegetationDesert Vegetation has very little leavesCan occur at temperatures of -30°C to 45°C depending on climate
  29. 29. Vegetation tend to have fleshy stems like for example cactusHot desert plants have long rootsDesert plants have shorter life cycles
  30. 30. Temperature rarely rises above 0°C, with little rainfall all year round.Mostly snowing rather than rain.Textbook Pg. 174
  31. 31. Natural Resource  Source of wood for various uses
  32. 32. Medicinal value  Extracting medicinal properties from plants
  33. 33. Recreation  Nature reserves provide opportuinities for relaxation and tourism
  34. 34. Oxygen for atmosphere
  35. 35. Formation of rain
  36. 36. Prevents erosion of soil
  37. 37. Natural Habitats