Back to GeographyPractice this
Paper 1
Tropical Rainforests
Both
Rainforest nutrients are stored mainly in biomass.
Key Facts
- Soils are thin due to rapid nutrient uptake by biomass.
- Deforestation increases soil erosion and river sediment.
- Biodiversity is high but fragile.
- Sustainable management protects livelihoods and habitats.
Topics Covered
Layers and Structure
What you need to know
- •Emergent, canopy, understory, and forest floor layers.
Exam Tips
- Use layers to describe light and biodiversity.
Management Strategies
What you need to know
- •Selective logging, replanting, and conservation.
Exam Tips
- Explain balance between development and conservation.
Key Terms
Biodiversity
Variety of species in an ecosystem.
Selective logging
Removing some trees while keeping canopy cover.
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Common Exam Questions
Explain how deforestation affects the nutrient cycle.
4 marksmediumPaper 1
Model Answer
Biomass store is reduced and more nutrients are lost through leaching, so soil fertility falls.
What examiners want to see
- ✓Explain the link between biomass loss and nutrient loss.
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