Date post: | 17-Jan-2016 |
Category: |
Documents |
Upload: | whitney-hall |
View: | 215 times |
Download: | 0 times |
DEFROESTATION IN THE AMAZON
G1-OC Class
Yisel & Maggie
May,2010
Quiz• Which country has the biggest portion of the
Amazon rainforest?
- Brazil• What amount of the world’s fresh water is in the
Amazon River basin?
- 20%• How many countries have part of the Amazon
within their borders?
- nine• Which is the only river in the world longer than
the Amazon.
- Nile in Africa
Agenda
• Background
• History
• Causes
• Effects
• Solutions
• Conclusion
• References
What is deforestation?
• By logging and burning
Where is the Amazon?
Lungs of our planet
• The ninth largest if it were a country
• Recycling carbon dioxide into oxygen
• More than 20% of Earth’s oxygen
• 10 million species : plants, animals, and insects
• One-fifth of the world’s fresh water
History
1500 1600 1700 1800 1900 2000
Europeans
1888 1912
Rubber production
1967 1988
Government policies
1994
Environmental movement
1995
new government incentives
2003
Brazilian cattle exports outpaceDomestic markets
Breakdown of Causes
Government policies
• Land grants for deforesting and colonizing
• Credit and tax incentives for cattle ranching
• Roads built through the Amazon that increase access
Other causes
• Historic Factors : war, industrialization, colonization, etc.
• Population Growth : more people → more inhabited land → more deforestation
• Urbanization : city area increases → forest recede
South America has highly urban populations. Urbanization levels are expected to reach 85 per cent by the year 2025
Other causes• Climate change : climate change → local vegetation
recede → deforestation
• Green house effect
• CO, Emission increase
cause : the clearing of land for cattle, the need for land in increased soybean production, illegal logging.
Effects
Rondônia, Brazil. Top:June 1985Bottom: August 1992
Effects
• Loss of biodiversity : no trees → no shelter → no animals
• Soil erosion : no trees → no beneficial soil
• Ground water table : no soil or less soil → retain no or less water → the ground water levels
reduced
• Floods : no trees → no (major) obstruction to flowing water →no chance to percolate into the ground→ cause
flood
• Drought : water gone by flood / evaporation → drought
• Less carbon conversion : contributing to global warming
Solutions
• Reforestation• Legislation
• Wildlife sanctuaries• Cities
• Incentive to Corporate• Commercial Forest Plantations
• Water Management
What can be done? • Avoid beef products
from Brazil!• Recycling : more recycle →
less disposable products → decrease deforestation
• Gas fireplaces : Use gas → less wood → deforestation decrease
• International Workshop on Solutions to Deforestation for Cattle Expansion is on Facebook
Conclusion
• Background
• History
• Causes
• Effects
• Solutions
References• http://www.mongabay.com/brazil.html• news.mongabay.com/2005/0827-brazil.html• http://www.earthportal.org/?p=143• http://www.rain-tree.com/facts.htm• www.unep.org/geo2000/ov-e/ioe9.htm• www.realtruth.org/080207-001-weather.html• www.france24.com/en/node/4934720• www.all-creatures.org/hope/gw/02_bio-fuels.htm• http://en.wikipedia.org/wiki/Amazon_Rainforest• http://www.buzzle.com/articles/deforestation-solutions.html• http://www.facebook.com/pages/International-Workshop-on-
Solutions-to-Deforestation-for-Cattle-Expansion/117348320487