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Tropical Rainforests
What are tropical rainforests?
Thick and Luxuriant evergreen forests
can be characterized by
Types of plants
Great biodiversity
Trees
Lianas
Epiphytes
Shrubs
Ferns
Mosses
Fungi
Structure
Three-layered structure
Emergent layer
Canopy layer
Undergrowth layer
Adaptive features
Bark and branches
Leaves
fruits and flowers
Roots
Uses of tropical rainforests
Water catchment
Green lungs of the earth
Habitat to flora and fauna
Habitat to indigenous people
Source of timber
Medical application
What is deforestation?
deforestation
Cutting down and removal of all or most trees in a forested area
Why does deforestation occur?
Causes of deforestation
Agricultural activities
Cattle ranching
Logging
Mining
Enhanced greenhouse effect
How should we manage deforestaion?
Conservation measures
Protection of forested areas
Reforestion
Controlled logging
Public education
How does deforestation impact people and the environment?
Environmental impact
Loss of biodiversity
Loss of water catchment areas
Increased risks of flooding, soil erosion and sedimentation
Economic impact
Depletion of natural resources
Social impact
Effects on indigenous people
Where are tropical rainforests found and which areas have been deforested?
Global distributions of tropical rainforests
Main rainforest areas are found in the Amazon Basin, the Congo basin and Southeast Asia
Distributions of tropical rainforests in Singapore
Main rainforests are found in Central Catchment Nature Reserve and Bukit Timah Nature Reserve