Studies of the terrestrial O{sub 2} and carbon cycles in sand dune gases and in biosphere 2
Citations
1,278 citations
Additional excerpts
...The exchanges of O2 and CO2 with the land biosphere are strongly correlated with a molar O2/C exchange ratio of approximately 1.1, dictated by the stoichiometry of photosynthesis and respiration (Severinghaus 1995)....
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...Nature 393:54–57 Severinghaus JP. 1995....
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289 citations
Cites background from "Studies of the terrestrial O{sub 2}..."
...Land use changes and terrestrial growth consume (or release) 1.1 moles of O2 for every mole of CO2 they release (consume) [Severinghaus, 1995]....
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239 citations
Cites background or methods from "Studies of the terrestrial O{sub 2}..."
...The estimated global value for αB of 1.10 ± 0.05 is based only on a small number of plant and soil laboratory chamber analyses carried out by Severinghaus (1995)....
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...10 based on measurements in Severinghaus (1995), that is, 1....
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...1 (Severinghaus, 1995)....
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...Fossil fuel combustion (and cement manufacture) has a global average O2:CO2 exchange ratio of about 1.39 moles of O2 consumed per mole of CO2 produced (Keeling, 1988a), whereas land biotic photosynthesis and respiration has an average ratio of about 1.1 (Severinghaus, 1995)....
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...We use αB = 1.10 based on measurements in Severinghaus (1995), that is, 1.10 moles of atmospheric O2 are produced for every mole of atmospheric CO2 consumed by land biota and vice versa....
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154 citations
152 citations