1.11. Carbon Stores (major) Flashcards
1
Q
Marine sediment and sedimentary rock %
A
69%
2
Q
Ocean %
A
26%
3
Q
Fossil fuel deposits %
A
2.7%
4
Q
Soil organic matter %
A
1%
5
Q
Atmosphere %
A
0.005%
6
Q
Soil organic matter
A
- soil contains rotten organic matter
- important carbon stores
- carbon can remain in soil for 100s of years
- deforestation, land use, and soil erosion can release stored carbon rapidly
7
Q
Atmosphere
A
- carbon held in form of co2
- amount increased due to power stations, vehicles and deforestation -> enhanced greenhouse effect
8
Q
Terrestrial plants
A
- vital for life
- convert sun’s energy to carbohydrates
- store carbon for years and transfer to soil
- deforestation- carbon released back into atmosphere
9
Q
Marine sediments and sedimentary rocks
A
- largest store of carbon
- a long term store with rocks taking millions of years to form
10
Q
Ocean
A
- very important carbon store
- co2 absorbed directly from air and river water discharges carbon carried in solution
- since Industrial Revolution, oceans have absorbed more co2 from air from increased co2 emissions
11
Q
Fossil fuel deposits
A
- hydrocarbons= important long term store of carbon
- since Industrial Revolution, oceans absorbed more co2 from increased co2 emissions