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DEFORESTATIONBY
Fabian Koh
&
Jessica Loi
What Is Deforestation?• Logging and/or
burning of trees in forested areas
• Clearing of trees
Importance of Forests• Home to 50%-90% of organisms• Spices and medicines• Maintain/Improve quality of air• Replenishes the atmosphere• Cools and regulates the Earth’s
temperature• Prevents soil erosion & landslides
Causes• Overpopulation• Agriculture
– Slash and burn– Cattle grazing– Cash crops
• Commercial & Industrial purposes• Others
– Building of dams– Acid rain
EFFECTS
Loss of Biodiversity
Dead fishes washed ashore at the Rajang River caused by deforestation
Erosion•Degradation of soil
•Formation of sediments in river
Flooding•Deforestation increases the surface run-off from rainfall
•Without forests, a greater proportion of rain falls to the ground.
Climate Change
• Amount of CO2 increases.
• 2007 – 2.2 billion tons of Carbon emitted every year.
Controlling Deforestation
• Kyoto Protocol• New methods of farming• Forest management• Certification of sustainable forest
management practices• Reforestation
What should we do as an individual?• Practise the 5Rs
– Reduce– Reuse– Recycle– Rethink– Repair
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