Tropical rainforest

Question 1

Characteristics of tropical rainforests

Answer 1

Mean annual temperature: 25C 
Annual temperature range: less than 5°C
Rainfall – amount: exceeds 2000mm
Rainfall – seasonal distribution: same throughout year
Wind: low
Cloud: heavy
Humidity: high
Pressure: low

Question 2

Influences on climate

Answer 2

Latitude

Cloud

Reason for high rainfall

Question 3

Nutrient cycle

Answer 3

Learn with other notes

Question 4

Water cycle

Answer 4

Learn with other notes

Question 5

Vegetation layers

Answer 5

Emergents: 50m. Over canopy. Sunlight.

Main Canopy: 50% wildlife. extremely thick. 25 and 35 metres.

Under canopy: 20m. Less dense can survive in less sunlight.

Shrub Layer: low shrubs & saplings. Shade plants. extremely dense.

Lianas: Woody cines, climb up trees, sunlight.

Forest floor: Fungi

Question 6

Vegetation adaptations

Answer 6

Leaves
Broad –> maximum amount of sunlight
Drip tip –> shed heavy rain

Tall, straight trunks
Competing sunlight

Buttress roots
tall
Support, muddy soil
Maximum nutrient, nutrient-poor soil

Shrub layer
Adapt, survive less light

Lianas
sunlight, large trees