Neutral mention · rule
Full article, open access, is at Nature Climate Change: Sensitivity of South American tropical forests to an extreme climate anomaly (04 Sep 2023) https://www.nature.com/articles/s41558-023-01776-4 First time I've seen the word, "necromass" though: > "Among the key processes governing the carbon balance of tropical ecosystems are the rates of tree growth, which takes carbon into the biomass pool, and tree mortality, which transfers it to necromass. In turn, both growth and mortality are likely to depend closely on plant available water, temperature and their fluctuations." Curiously old-growth forests seem to slowly draw down CO2 even at mature stage[1], it may end up…
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sequestered in soil (see also peat bogs, permafrost carbon, etc.). This leads some credence to the notion that recent human activity has 'refertilized' the environment with CO2 - although since we're apparently back to CO2 levels last seen in the Pliocene, 3-5 mya, now would probably be a good time to stop. Re-creating widespread ocean anoxia is not a good idea, even if that's what allowed most oil & gas deposits to form some hundred million years ago. [1] Old-growth forests as carbon sinks (2008). https://www.nature.com/articles/nature07276