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11 Cards in this Set
- Front
- Back
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Roots
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Grow sideways as soil only holds water at the top
Buttress roots-above ground root system stabilise tall trees and increase surface area for nutrient absorption. |
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Seeds
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Only 1 in a million reaches the canopy
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Trees
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Have smooth bark so others can't climb them
Grow tall to reach sunlight (only 10% reaches the floor) 80% of animals live in the canopy |
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Ratans
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Produce long stems with sharp tendrils to hook onto trees, grow into the canopy and produce roots.
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Strangler figs
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Grows slowly at first and as it gains strength, it wraps its roots round a tree trunk. When they reach the soil,it grows quicker. It's better at absorbing nutrients than the tree and its crown cuts off light, so the tree dies leaving the strangler fig upright.
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Liana
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Thick vine that loops around a tree trunk to reach the canopy.Begins on forest floor but depends on trees for support as it climbs
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Drip tips
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Leaves shaped to shed heavy rainfall and they release it at drop size to reduce leaching.
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Soils
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Latasol
First few cm fertile (humus layer) 20-30m deep Nutrients washed out by leaching Red and yellow soils due to iron and aluminium oxides. |
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Climate |
2000-3000mm of annual precipitation Average temperature: 27-30 degrees c |
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Location |
Along the equator South America Brazil |
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Vegetation layers |
0-10m shrub layer 10-20m under canopy 20-30m canopy 30-40m emergants |
