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1.3.1 What are the distribution and size of the major stores in the carbon…
1.3.1
What are the distribution and size of the major stores in the carbon cycle
Atmosphere
Found as carbon dioxide and methane -
gas
Hydrosphere
Found as carbon dioxide in the oceans.
Found as
dissolved gas
Pedosphere
Found as organic material - soild
Peat
= Carbon rich soil - waterlogged soil found in moorlands -> used as a fossil fuel.
Biosphere
Found in
plants
and
animals
as
living organic material.
Most active in terms of moving carbon.
Lithosphere
Found as
fossil fuels, carbonate based rocks
(limestone and chalk)
The Global Carbon Cycle
Carbonate Rocks
- 60 000 - 100 000 000 bn tonnes
Oceans
- 38 700 bn tonnes
Sea floor sediments
- 6000 bn tonnes
Fossil Fuel
s - 4 130 bn tonnes
Soil
- 2 300 bn tonnes
Atmosphere
- 600 bn tonnes
Plants
- 560 bn tonnes
Cryosphere
Part of the soil storage - permafrost, when the soil freezes