My understanding is that when trees die, the CO2 they store is by default returned to the atmosphere. Does anyone know the mechanism, preferably with a credible source? (Trying to better understand trees as a negative emissions technology.)
Do you happen to know a source on relative percentages? Eg for fire versus microbial decomposition versus human use etc?
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Not off the top of my head, but that article has a lot of good links to credible sources, so it's a good starting point.
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That diagram seems to suggest that <100% of it is returned to atmosphere even when they die? Some becomes “soil carbon enrichment”, even long term? And by then they may have made baby trees, too, which are now growing?
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Do you mean as a percentage of the overall biosphere, or as a percentage of the carbon in each tree conditional on what happens to it?
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