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Deforestation and peat bog destruction explained

Ecology • Biodiversity and the effect of human interaction on ecosystems

Key concepts

What you'll likely be quizzed about

  • Deforestation is the permanent removal of trees for alternative land use, such as farming, pasture, urban development, or timber extraction.
  • Common large-scale causes include expanding cattle ranching, commercial agriculture, and logging.
  • Smaller-scale wood collection has a minor effect compared to industrial clearing in biologically diverse regions.
  • Factors limiting deforestation rates include land suitability, soil fertility, and protective policies.

Flashcards

Test your knowledge with interactive flashcards

How does deforestation relate to food security and land use?

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Conversion to agriculture can increase short-term food production but degrades ecosystem services.

Key notes

Important points to keep in mind

Deforestation permanently removes a carbon sink and often releases carbon.

Peat forms under waterlogged, acidic, low-nutrient conditions and stores carbon over long timescales.

Drainage or extraction of peat exposes carbon to oxygen, accelerating CO2 emissions.

Habitat fragmentation reduces gene flow and increases extinction risk for specialized species.

Reduced transpiration after tree loss causes drier local climates and increased erosion.

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