amazon 🤪

Question 1

average rainfall

Answer 1

2300 mm/yr

Question 2

how much of the earth’s surface fresh water is in the amazon?

Answer 2

1/5

Question 3

major tributary?

Answer 3

rio negro

Question 4

what percentage of rainfall reaches the ground? why?

Answer 4

50%

high precipitation rate due to mass vegetation

Question 5

percentage of moisture that remain in the ecosystem? why?

Answer 5

60%

high temperatures = more evaporation

high humidity

Question 6

how many trees?

Answer 6

300 billion

Question 7

what fraction of carbon stored in biomass is found in the amazon?

Answer 7

1/5

Question 8

how many tonnes of carbon are stored in the amazon (trees)?

Answer 8

100 billion tonnes

Question 9

trees dying early means ..?

Answer 9

more carbon dioxide in atmosphere as less photosynthesis

Question 10

storage of carbon in vegetation and soil is called? making the amazon a ….?

Answer 10

sequestration

carbon sink

Question 11

a human activity that has caused issues in the amazon?

what issues has it caused?

Answer 11

deforestation

less interception so more flooding

less evaporation so less rainfall

no roots so soil erosion

little leaf litter so less hummus

more carbon dioxide in air so more global warming

loss of species

Question 12

human activities to mitigate issues in the amazon

Answer 12

selective logging

laws - BFC “must keep 50-80% forest land”

replanting - peru plan to plant 3.2 million hectares of forest by 2020

protection - DETER satalitte has prevented the deforestation if 59000km2

• natural parks
• WWF