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6. runoff is -
- does not occur
- slow due to dry soils
- rapid due to high rainfall, intensive rainfall events and well-drained soils
- slow, rocks are permeable
7. forest trees store _ tonnes of carbon collectively
- 80 billion
- 200 billion
- 100 billion
- 35 billion
8. what is the npp per meter a year?
- 2500 grams
- 3000 grams
- 2000 grams
- 1500 grams
9. when rainforest is converted to grassland, by what % will runoff be increased
10. what is not a project/scheme occurring?
- greenpeace
- parica project rondonia
- REDD - reducing emissions from deforestation and degradation
11. what is a factor which did not contribute to the flooding?
- eroded soils
- temperature
- deforestation reducing water storage, decreased interception
- impermeable rock basin
12. how many km of rainforest has been deforested between 1970 and 2013
- 17,500
- 18,000
- 17,000
- 16,000
13. how many tonnes of carbon a year does the amazon rainforest store
- 2.4 billion
- 2.4 million
- 240 billion
- 2.4
14. what % of precipitation is intercepted?
15. how much carbon does the amazon release into the atmosphere a year?
- 1 billion tonnes
- 2.4 billion tonnes
- 1.7 billion tonnes
- 2 billion tonnes
16. amazon regional protected areas now cover how much of the rainforest?
- 40%, 10x size of spain
- 44%, 20x size of belgium
- 50%, 20x size of france
17. how much is biomass annually?
- between 300-600 tonnes
- between 3000-6000 tonnes
- between 400-700 tonnes
- between 4000-7000 tonnes
18. continued deforestation will result in what % decline of regional rainfall?
19. geology of the amazon basin consists of ...
- impermeable crystalline rocks
- sandstone
- clay
- limestore
20. grasslands store less carbon that rainforest does. grass stores _ tonnes and soya _ tonnes
- 162, 27
- 12, 14
- 16.2, 2.7
- 120, 140