4.18B The Effects of Deforestation (Edexcel IGCSE Biology)
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Author
LáraExpertise
Biology Lead
Deforestation
- Deforestation is the clearing of trees (usually on a large scale)
- If trees are replaced by replanting it can be a sustainable practise
- Generally the trees are being cleared for the land to be used in a different way (for building, grazing for cattle, planting of monocultures such as palm oil plantations etc) and therefore it is not sustainable
- As the amount of the Earth’s surface covered by trees decreases, it causes increasingly negative effects on the environment and is a particularly severe example of habitat destruction
- Undesirable effects of deforestation include:
- Extinction of species
- Soil erosion
- Which leads to leaching
- Flooding
- Increase of carbon dioxide in the atmosphere
- Disturbance of water cycle
Consequences of Deforestation Table
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