Sustaining Ecosystem - Amazon Deforestation Flashcards

1
Q

Amazon Facts
How much world covered
How much gone and the rate

A

6% of the world covered
50% of species

11% of world GDP
23% is the point of equivalence/tipping point

17% of the amazon already gone
11,000km squared lost TTM

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2
Q

Causes of Deforestation (3)

A

Mining
- Amazon rich in natural resources: iron, copper, tin, Al, and Ag leading to mines
Logging
- Rainforests cut down soo trees like mahogany and timber can be sold.
Farming
- Large areas are cleared for animals as global demand for meat increased 150 billion in last 20 years

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3
Q

Impacts of Deforestation:

A

Soil Erosion
- land is cleared; soil is bare exposed to rain and wind which leeches the soil of nutrients.
- No trees too replace this therefore cycle stops and soil become infertile.

Climate Change:
- Trees do 25% of CO2 exchange
- Less trees: less exchange: global warming and less O2

Loss of Habitat and biodiversity

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