amazon rainforest

Question 1

what % of south america does the amazon cover>?

Answer 1

40

Question 2

what is the amazon?

Answer 2

the largest rainforest in the world

Question 3

what are the characteristics of the rainforest?

Answer 3

very wet, hot and vegetation is dense

Question 4

how lives in the amazon?

Answer 4

many groups of indigenous people

Question 5

how many plant species are there?

Answer 5

over one million

Question 6

what endangered animal lives in the amazon?

Answer 6

the amazonian manatee

Question 7

why does the amazon have high rainfall?

Answer 7

evaporation occurs over the atlantic and wind blows it towards the amazon

Question 8

what % of fresh water comes from the amazon into the atlantic?

Answer 8

15

Question 9

what is significant about the rio negro?

Answer 9

it is the second largest river in the world in terms of water flow
100m deep and 14 km wide

Question 10

how much rainfall does the amazon receive annually?

Answer 10

2300 mm

sometimes it can reach up to 6000

Question 11

why might rainfall in the amazon never reach the ground?

Answer 11

it is intercepted by forest canopy where it is stored and re evaporated due to the high temporaries

Question 12

how much rainfall that is evaporated from the amazon falls again as rain?

Answer 12

48%

Question 13

why is the azmon a carbon sink?

Answer 13

it stores large amounts of carbon faster than it releases it

Question 14

who much carbon is stored in the amazon?

Answer 14

between 80-120 billion tons

Question 15

why ha the biomass in the amazon increased?

Answer 15

due to rising levels of carbon in the atmosphere, meaning that plants uptake more in photosynthesis

Question 16

what is happening to the trees even though they are taking up more carbon?

Answer 16

they are growing much faster but dying quicker, creating a positive feedback loop

Question 17

why is the amazon losing its a ability as a carbon store?

Answer 17

plants are dying much quicker than they are growing/being planted meaning that much more carbon will continued to be lost making it a carbon source

Question 18

what are some of the main drivers of change in the amazon?

Answer 18

deforestation
climate change
soil change
vegetation change 
rivers

Question 19

why does deforestation occur in the amazon?

Answer 19

to produce timber or to use the land for farming

Question 20

what % of brazils carbon emissions is down to deforestation and bring in the amaozn

Answer 20

59%

Question 21

between 2000-2007 how much forest was cut down?

Answer 21

an area the size of greece

Question 22

how does deforestation of the amazon affect the water cycle?

Answer 22

there are less trees for interception to occur, so there is a higher risk of flooding
however drought can also be a risk as there are less plants for evaporation to occur so less rainfall

Question 23

why might drought occur in the amazon?

Answer 23

as trees cut down no evaportransipiration

Question 24

how is carbon held in the soil lost through deforestation?

Answer 24

any carbon that is in the soil is not held together by roots meaning heavy rain will wash away the top layer of soil adding the carbon into the hydrological cycle

Question 25

why does slash and burn increase levels of carbon?

Answer 25

as the trees are burned any co2 stored will be released into the atmosphere and cannot be reuptaken as the trees are no longer there

Question 26

what technique reduces soil porosity and what does the lead to?

Answer 26

slash and burn | less water is taken up by the soil meaning that surface run off is increases causing faster drainage and erosion

Question 27

by 2050 how much will temperatures have risen by?

Answer 27

3 degrees

Question 28

how does climate change impact the amazon?

Answer 28

temperatures are increasing but rainfall is decreasing causing rights in 2005 nd 2010 they had droughts

Question 29

when did the amazon have severe droughts?

Answer 29

in 2005 and 2010

Question 30

how is drought linked to release of co2?

Answer 30

as there is no water being stored in the vegetation the likelihood of forest fires is larger releasing co2 as the veg is burnt

Question 31

if temperature sin the amazon rise by 4 degrees what would occur?

Answer 31

85% of the amazon would die out

Question 32

how is soil change linked to amazon?

Answer 32

deforestation reduces the cover that soil has meaing that the top layer of soil is easily washed away which has most of the nutrients

Question 33

what are ways of reducing impacts?

Answer 33

selective logging replanting environmental law protection

Question 34

what is selective logging and hwo does it help?

Answer 34

only the oldest trees are allowed to be felled | means that less trees are taken and the forest keeps its structure meaning that it is able to regenerate

Question 35

what is replanting and how does it help?

Answer 35

new trees are planted, timber farms are nwow being created so that less forest is being lost

Question 36

who is planning on replanting 3.2 million hectares and by when?

Answer 36

peru by 2020

Question 37

what is the brazilian forest code?

Answer 37

it states that land owners must keep 50-80% of their land as forest

Question 38

what is being set in order to protect the amazon rainforest?

Answer 38

national parks and reserves

Question 39

what can be monitored in national parks?

Answer 39

logging

Question 40

what is an example of a reserve and how much does it cover?

Answer 40

the para rainforest reserve and covers 15 kilometres