Tropical Rainforest

Question 1

Seasonal and diurnal changes?

Answer 1

Seasonal: 1-2•C
Diurnal: 10-15•C

Question 2

Rainfall?

Answer 2

2000mm

Question 3

Humidity levels?

Answer 3

Very high, often 100%

Question 4

Rainforest’s are very productive

Answer 4

NPP high of 2200g/m2/yr

Question 5

How many tree species per hector?

Answer 5

Diverse, 200 species

Question 6

Problems with deforestation?

Answer 6

Loss of biomass
Soil only regains fertility after 20 years
High soil erosion rates
Increased number of landslides
Increased chance of flooding

Question 7

Trees

Answer 7

Flexible trunks - allow movement

Thin back - don’t need warmth

Question 8

Buttress roots

Answer 8

Wide spread roots - nutrients in top layer

Emerge 3m above ground - anchors, supports and stabilises trees

Question 9

Leaves

Answer 9

Fan shaped leaves - catches more suns light and water. Segmented to drain water
Drip tips - shed excess water
Thick - withstand strong sunlight

Question 10

Plants

Answer 10

Lianas - grow upwards, and start at ground level, live in dark conditions.
Strangle figs - steals tree nutrients, grows downwards

Question 11

Decomposition

Answer 11

Decomposes - help break down organisms to add soil and nutrients.
Fungi, worms like warm conditions

Question 12

Animals

Answer 12

African forest - small in size and tusks straight to allow greater movement.
Probiscus monkeys - loud noises when in danger, and unique digestive system so can just eat leaves

Question 13

Annual average temperature?

Answer 13

26-27•C