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The Carbon Cycle (Fluxes to atmosphere (Freshwater outgassing, Volcanic…
The Carbon Cycle
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Oceanic Sequestration
Main store is ocean, fluxes due to photo and respiration
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Cold, deep water can hold more gas than warm water
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Terrestial Sequestration
Primary producers absorb CO2, through photo and then release it through respiration
As plants convert carbohydrates into energy, they release some energy
This exchange between plants and atmosphere has a seasonal pattern, so winter CO2 concentrations are higher
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How crude oil is formed
Remains of land-based plants may form peat and coal in tropical rainforests causing formation coal fields
Anaerobic reactions convert 90% of organic carbon into liquid- crude oi, which is trapped in rocks
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Role of photosynthesis
Help to keep CO2 levels relatively constant, thereby regulating earths temperature
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Total NPP are in Oceans, Tropcial rainforests, savannahs and seasonal forests
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Solar Radiation
Shortwave
Solar radiation from the sun, pass through denser CO2 and can therefore reach the surface
Longwave
Radiation returning from earth, can be trapped by methane