carbon cycle application Flashcards
(29 cards)
At what rate does volcanic outgassing occur
0.15pgC/yr
At what rate does carbon move into oceans via chemical weathering
0.8 pgC/yr
At what rate is CO2 released into the atmosphere from the combustion of fossil fuels
35pgC/yr
At what rate does down welling AND upwelling from surface oceans to deep oceans occur
90pgC/yr
At what rate does dissolved carbon dioxide diffuse from the hydrosphere to the atmosphere
90pgC/yr
At what rate does carbon dioxide diffuse from the atmosphere into surface oceans
92pgC/yr
At what rate does carbon in the deep ocean sink to the surface sediment
0.2pgC/yr
What percentage of all carbon sequestered by photosynthesis is done by phytoplankton
50%
What % of carbon is stored as biomass
50%
How many times more carbon is in the hydrosphere than the atmosphere
50
How much carbon is stored in fossil fuels
4000pgC
How much carbon is stored in the lithosphere
100million pgC
How much carbon is stored in the atmosphere
75pgC
How much carbon is stored in marine biota
3pgC
How much carbon is stored in marine biota
3pgC
How much carbon is stored in terrestrial biota
3500pgC
How much carbon is stored in soil
2500pgC
How much carbon is stored in permafrost
1700pgC
At what rate does decomposition of carbon in the terrestrial biosphere take place
50pgC/yr
At what rate is carbon released into the atmosphere by respiration
50pgC/yr
At what rate is carbon sequestered through photosynthesis
123pgC/yr
How many times greater is the rate of photosynthesis to respiration
1000x
How much carbon is stored in the surface ocean
1000pgC
How much carbon is stored in the deep ocean
38000pgC
