GCSE Biology (AQA)

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Deforestation

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Ecology Biodiversity and the Effect of Human Interaction on Ecosystems

Deforestation

3:11 Human Use of Land
Spec 4.7.3.4 4.7.3.1
Previous Peat Bogs Next Global Warming
  • Deforestation involves the removal of trees to repurpose land for other uses.
  • Human population growth has increased the demand for land.
  • Deforestation is prevalent in tropical areas for cattle grazing, rice fields, and biofuel crops.
  • The environmental impact of deforestation includes the need to balance ecological concerns with human needs for food, shelter, and fuel.
  • Trees store carbon for centuries, and cutting and burning them releases this carbon dioxide back into the atmosphere.
  • Increased carbon dioxide levels contribute to the greenhouse effect and global warming.
  • Deforestation reduces tree transpiration, which cools the surrounding air, leading to a drier climate.
  • A drier climate increases the risk of soil erosion and landslides.
  • About 80% of the world's biodiversity is in rainforests, which are threatened by deforestation.
  • Species like the Sumatra orangutan are critically endangered due to habitat loss from deforestation for palm oil plantations.
  • Deforestation leads to decreased biodiversity.

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