Amazon rainforest Flashcards

1
Q

How large is Brazil (ranking)

A

5th largest country

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2
Q

What fraction of Brazil is rainforest covered

A

2/3

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3
Q

What rank polluter is Brazil

A

4th largest, over half from Amazon interference, 2015: emissions overtook uptake

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4
Q

How many trees

A

300b

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5
Q

How many species

A

15,000

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6
Q

Area

A

5.5km2 over 9 countries

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7
Q

Why ‘lungs of the Earth’

A

Produce 20% O2, stores 20% terrestrial C

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8
Q

% growth annually

A

0.3-0.5% from greater sequestration but stimulation means trees die younger

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9
Q

River size ranking

A

2nd largest by water flow, despite up to 1/2 precipitation being intercepted by canopy

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10
Q

Deforestation causes

A

Intensive agriculture (soya, cattle), HEP reservoirs and dams, logging, government organised colonisation schemes, mining and industry to reach minerals

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11
Q

Deforestation reasons

A

Utilise timber and mineral wealth, beef producers need land (infertile latosols), overpopulation, poverty, industry needs power to develop and maintain strength

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12
Q

Manaus size

A

Biggest city in and capital of Amazonas where 50% live

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13
Q

Manaus growth

A

Fastest growing Brazil city after Manaus Free Trade Zone. However, favellas e.g. Mante Horebe and waste in tributaries to Negro River (water supply)

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14
Q

When was AVANCA BRASIL announced

A

2000, 2007 PAC, 2010 PAC2

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15
Q

What is PAC2

A

£50b plan for 10,000km highways, dams, mines, etc. Scientists predict it would destroy or damage 40% remaining Amazon but fundraising issues

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16
Q

Deforestation examples

A

Companies given licenses to sell abroad as export and corporation tax. Road building gives settlement access e.g. 5300km Trans-Amazonian Highway. Unlimited water supply and HEP e.g. 2500 km2 Tuscuri Dam where 8000 lost homes

17
Q

Intensive agriculture impacts

A

Soya destroys 40ha/min. Pasture absorbs less solar radiation, mechanisation and agrochemicals, GMO and destruction disrupts balance, slash and burn reduces topsoil humidity retention releasing 30-60% C in soil

18
Q

Deforestation effect on economies

A

BRIC, one of fastest growing 2000s

19
Q

Deforestation effect on native American Indians

A

1500-2000, 6m to <250,000 Native American Indians

20
Q

Deforestation effect on % illegal timber

A

80%

21
Q

Deforestation effect on medicines

A

25% medicines tropical plants e.g. quinine, risk of loss

22
Q

Deforestation effect on temperature

A

0.26C rise every 10y since 1970s, bake to laterite, water temp kills species and lower O2 conc in water killing reliant eggs

23
Q

Mitigation agreements

A

Amazon Cooperative Treaty Organisation promotes harmonious development with 8 countries

24
Q

Mitigation reserves

A

15m ha Para Rainforest reserve

25
Q

Mitigation reforestation

A

Planted makes up 2% area

26
Q

Governance

A

Bolsanaro supported PAC, now more environment focused de Silva