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Corralling the carbon cycle
Date:11/13/2008

esis on this total change," remarked lead author Elliott Campbell a former Carnegie postdoctoral researcher, currently at UC Merced. "Our approach, based on the relation of carbonyl sulfide to photosynthesis, gives us this unique ability."

With the new inputs, the researchers ran their simulations, which consider plant uptake, soil and ocean absorption, human-made emissions and how the gases flow through these systems. The simulations showed that the magnitude of the plant uptake was much larger than other sources and sinks at a continental scale during the growing season, which is important for using the compound to trace photosynthesis.

"The intriguing outcome of this study is that an inverse analysis of the atmospheric carbonyl sulfide measurements may be used to quantify the carbon released during plant respiration," remarked Berry. "That key missing piece has been a thorn in the side of carbon-cycle research for years."


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Contact: Joe Berry
joeberry@GlobalEcology.stanford.edu
650-462-1047 x203
Carnegie Institution
Source:Eurekalert

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