Lesson on Natural Vegetation for Secondary 1 Regent Secondary School

1. Sec 1 Geography E Learning

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. Plants which are grown naturally and not
done by man.
Forests, Grasslands & Desert Vegetation

4. Forests
 Tropical Rainforest

5. Forest
 Temperate Deciduous Forest

6. Forests
 Temperate Coniferous Forest

7. Grasslands
 Tropical Savannah

8. Grasslands
 Temperate grasslands

9. Desert
 Hot desert vegetation

10. Desert
 Cold Tundra vegetation

13. Remember: Rainfall and Temperature, and
differences between amount of sunlight.
Climate Vegetation relationship

14. 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

15. Thrives in warm tropical climates, with
temperatures of 20°C to 30°C. Also has rainfall
ranging from 1000mm to 2000mm

16. 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

17. Three layers of tropical rainforests
 Emergent, Canopy, Undergrowth

18. Undergrowth
 Made of shrubs, grasses, ferns, mosses and fungi
 Plant growth is sparse because very little sunlight
reaches this layer.

19. 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.

20. Emergent
 Height of 40 to 50 metres
 Trees receive more sunlight at this layer and have
buttress roots for support

21. Occurs largely in temperate regions
 Two main types:
 Temperate Deciduous Forests
 Temperate Coniferous Forests

22. 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

23. Properties
 Nature of layers change across the seasons.
 Read pg. 167 (Questions will be asked from
there!!!)

24. 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

26. Two types of Grasslands
 Tropical Savannah
 Temperate Grasslands
Occurs in areas where rainfall is seasonal in
nature.

27. Found in places in the tropics
 Characterised with tall grasses along with
scattered trees.
 Trees have large trunks to help store water.

28. Trees have small leaves to prevent water loss
through Transpiration

29. 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

30. Grasses tend to be shorter due to lack of
rainfall.
Trees are scarce.

31. 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

32. Vegetation tend to have fleshy stems like for
example cactus
Hot desert plants have long roots
Desert plants have shorter life cycles

33. Temperature rarely rises above 0°C, with little
rainfall all year round.
Mostly snowing rather than rain.
Textbook Pg. 174

34. Natural Resource
 Source of wood for various uses

35. Medicinal value
 Extracting medicinal properties from plants

36. Recreation
 Nature reserves provide opportuinities for
relaxation and tourism

37. Oxygen for atmosphere

38. Formation of rain

39. Prevents erosion of soil

40. Natural Habitats