4.b Management of the carbon cycle Flashcards
1
Q
wetland restoration e. g
A
-freshwater marshes
- salt marshes
- peatlands
- Canada and UK
2
Q
wetland restoration facts
A
- 6-9% of Earths surface
- near permanently saturated
3
Q
impacts of wetland restoration
A
- loss of biodiversity
- increased amount of co2 released
-becomes a source rather than a sink
4
Q
pressuring impacting wetlands
A
- population growth
- urbanisation
- recuded water table
5
Q
RAMSAR
A
- restoration programme
- aim to raise the local water table
- recreate water logged conditions
- controlled flooding and reconnect rivers
6
Q
Afforestation
A
replanting trees in deforested areas or areas that have never been forested
7
Q
Afforestation facts
A
- primary trees store less co2 than primary trees
- programme that is a global idea
8
Q
Afforestation impacts on climate
A
- reduce atmospheric co2
- reduce flooding and soil erosion
-increase biodiversity
9
Q
REDD
A
- provide incentive for counties to conserve their rainforests
- place monetary value on the land
- working the Amazon
10
Q
Agricultural practices
A
- change unattainable practices such as overcultivation, overgrazing, excessive intensification
11
Q
impacts of incorrect agricultural practices on climate
A
- soil erosion
- releasing large amount of co2 into the atmosphere
12
Q
changed agricultural techniques
A
-land crop management = leave crop residues, contour ploughing, avoid using heavy machinery
- live stock management = increase quality of animal feed
- manure management = controlling the way it decomposes to reduce methane release
13
Q
international agreements examples
A
- Kyoto protocol
- Paris climate convention
14
Q
Kyoto protocol (1997)
A
- legally binding
- reduce co2 emissions
- China and India were exempt
- many refused to ratify (USA, Aus)
- expired in 2012
15
Q
Paris climate convention (2015)
A
- reduce global co2 emissions below 60% by 2050 from 2010 rates
- keep waring below 2 degrees
- countries set their own targets
- not legally binding ( can cheat the system)
