Water And Carbon Cycles In The Amazon Rainforest Flashcards

(27 cards)

1
Q

What area does the Amazon rainforest cover?

A

6million sq km

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2
Q

Average temperature

A

25-30 degrees C

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3
Q

Annual rainfall

A

Over 2000mm

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4
Q

What % of precipitation is sent to the atmosphere straight away through evapotranspiration?

A

50-60%

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5
Q

NPP?

A

2500g/m sq/year

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6
Q

How much carbon is stored in the biomass?

A

400-700 tonnes/ha

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7
Q

How much carbon is stored in the soil?

A

90-200tonnes/ha

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8
Q

How much carbon is absorbed by the rainforest from the atmosphere through photosynthesis in a year?

A

2.4billion tonnes

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9
Q

How much carbon is released back to the atmosphere through decomposition and respiration?

A

1.7billion tonnes per year

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10
Q

Name three physical factors that affect the water cycle in the Amazon

A

Temperature,geology and relief

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11
Q

Name 4 physical factors that affect the carbon cycle in the Amazon

A

Temperature, vegetation, organic matter in the soil,mineral compsition in the rocks

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12
Q

What type of rocks are large parts of the Amazon basin made up of?

A

Crystalline impermeable rocks

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13
Q

What is the mountain range called to the west of the Amazon rainforest?

A

Andres

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14
Q

1970-2013 average area deforested per year?

A

17,500km sq

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15
Q

What proportion of primary forest has been destroyed?

A

1/5

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16
Q

Name a drainage basin that flooded

17
Q

How many meters above normal did the river reach?

18
Q

How many people died?

19
Q

What was the area of Bolivian rainforest that was cleared that triggered these floods?

20
Q

Carbon biomass of grasslands

A

16.2 tonnes/ha

21
Q

Brazil is commited to restoring what area of forest by 2030?

22
Q

By 2015 what % of Brazilian rainforest was protected thorough national parks, wildlife reserves and indigenous reserves?

23
Q

Name a reforested project

A

Parica project In Rondonia

24
Q

How many fast growing tropical hardwood seedings were planted to develop a commercial sustainability managed timber plantation?

25
Name an indigenous group who plant seedlings in deforestated land where they live
Surui
26
What is the REDD scheme and who runs it?
Reducing Emissions from deforestation and Degration scheme run by the UN. The Surui gained carbon credits for this and sold then to Natura, a cosmetics TNC. This allows me them to make money from restoring the rainforest.
27
Name two ways we can improve farming techniques in the rainforest
Diversification (e.g. Rearing live stock and growing crops on the same farms. And use of dark soils (human engineering soils )