L10_More_Carbon_Cycle

1a 63 gty 8 012 gty 7 012 gty land bioshpere

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Unformatted text preview: is not a residence Nme, since the reservoir is not at steady state. t = mass / flux = 800 Gt / (0.4 Gt/yr) = 2000 years This 2000 yr esNmate assumes that the weathering flux is Zeroth Order. Zeroth order flux: flux is constant: F = C First order flux: flux is proporNonal to mass of reservoir: F = kM first order flux zeroth order flux Flux Flux Reservoir Size Reservoir Size Second order flux: flux is proporNonal to mass of reservoir: F = kM2 ?? order flux second order flux Flux Flux Reservoir Size Reservoir Size Second order flux: flux is proporNonal to mass of reservoir: F = kM2 second order flux ?? order flux Atm. CO2 Atm. CO2 Chemical Weathering The residence Nme of CO2 in the atmosphere is ~7 years How...
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