9.3 Deforestation

Question 1

causes of
deforestation

Answer 1

• timber extraction and logging,
• subsistence and commercial farming,
• roads
• settlements,
• rock and mineral extraction

Question 2

timber extraction and logging

Answer 2

Timber is needed in MEDCs for products ranging from luxury furniture to paper, or as a source of energy

Question 3

impacts of deforestation

Answer 3

• habitat loss,
• soil erosion and desertification,
• climate change,
• loss of biodiversity
• genetic depletion

Question 4

Soil erosion and desertification:

Answer 4

• Forests reduce the impact of heavy rainfall on the ground, reducing soil erosion
• Tree roots bind the soil in place, and the layer of fallen leaves and branches protects the soil

Question 5

Climate change:

Answer 5

• Forests act as carbon sinks, absorbing CO₂.
• Deforestation releases stored carbon, contributing to global warming.