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Deforestation
- 2. What is Deforestation? • The destruction of forests and trees • Has many harmful effects on the environment • Happening too quickly to recover
- 3. Causes of Deforestation • Agriculture • Logging • Mining • Dams • Roads
- 4. Agriculture • Leading cause of deforestation • Farmers need land to grow crops and raise animals • They remove forest land to make room for farms • They use slash and burn to perform deforestation • Slash and burn is cutting away and burning the forest
- 5. Logging • Loggers cut down trees for their wood • Logging is illegal in many areas, like National Parks • The wood is used for many purposes, including paper production and as a building material
- 6. Mining • Miners search for materials like gold, copper, and aluminum • This clears the land, including the forest that occupies it • Contaminates the ecosystem with runoff
- 7. Dams • Generate hydroelectric energy • Flood forests that are upstream • Trees decay slowly when dams are built in tropical waters, depriving the water of oxygen
- 8. Roads • Building the roads themselves destroys trees in the way • Provides access to a larger area of the forest for loggers, miners, and farmers
- 9. Effects of Deforestation • Disrupts water cycle and carbon cycle • Loss of biodiversity • Soil Erosion • Poor water quality
- 10. Water Cycle • If the trees are gone, there will be less transpiration and less water released into the hydrologic cycle
- 11. Carbon Cycle CO2 02 • If trees aren’t there, carbon dioxide will accumulate and contribute to the greenhouse effect CO2 CO2 CO2 CO2
- 12. Loss of Biodiversity • Rainforests contain over half of the world’s species • Loss of trees -> loss of primary consumers -> loss of secondary consumers -> … • When trees are removed, all rainforest life is affected
- 13. Soil Erosion • Soil erosion is when soil is removed by natural causes • When trees are gone, their roots cannot hold the soil in place • Reduces soil’s capacity to hold water • Makes agriculture difficult
- 14. Poor Water Quality • Soil erosion lets dirt enter runoff, lowering water quality • Makes for bad living conditions for fish • A reduced amount of fish can cause ramifications all the way up the food chain
- 15. Examples of Deforested Areas • The Amazon • Africa • Southeast Asia
- 16. The Amazon • World’s largest tropical rainforest • Located in South America • 1/5 of the world’s plants and 1/10 of animals are found here
- 17. Rainforests in Africa • World’s second largest rainforest • Almost all of the forest on Madagascar is gone • Madagascar too contains a large amount of biodiversity that has been compromised
- 18. Rainforests in Southeast Asia • Indonesia is covered in rainforest • Has been deforested just like the Amazon and in Africa • It is hot and humid the whole year
- 20. Solution/Recommendations • Reforestation • Legislation • Commercial Forest Plantations • Reduce Population Growth • Cities
- 21. Reforestation • In most parts of the world due to public awareness there have been new development • That enforces reforestation and we have seen some major changes especially in countries around Asia.
- 22. Legislation • There is Poorly enforced policies, government claims that it is working to protect forests elsewhere in the world • But its not working, if there is good policies for deforestation and its continues then there might be a chance to stop deforestation.
- 23. Commercial Forest Plantation • There can be special forest plantations for all the wood that is needed for the industry • This way the wood can be cut in a controlled and regulated environment.
- 24. Reduce Population Growth • Reduction of population growth is pivotal in reducing deforestation in the developing countries.
- 25. Cities • All cities, let alone new cities, have to be managed properly • The new projects need to be controlled and planned accordingly making sure new trees are planted in the process.
- 26. Thank you..!