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Tropical rainforests - Coggle Diagram
Tropical rainforests
Emergent layer
Grow tall to absorb sunlight
Tall and straight
Smooth trunks
Few branches
Buttress roots for support
Tropical climate
High temparature
High rainfall
annual rainfall btwn 1500-2500 mm
Between tropic of cancer and tropic of capricorn
Near equator
Characteristics
Broad leaves
Large exposed surface area
Absorb as much sunlight as possible for photosynthesis
Waxy leaves
Reduce water loss through transpiration
Allow water to flow off easily
Drip tips
Buttress trees
Canopy layer
Majority of trees
Block 97-98% sunlight from reaching forest floor
So dense they interlock to form a continuous mass of branches and leaves
Undergrowth layer
Leaf ltter gathers
Warm and wet environement
Plant growth is sparse
Fungi
Moss
Ferns
small trees
Dark and cool