Sans eau, les forêts cessent de capter le CO₂ et deviennent émettrices de carbone
By
Nicolas Martin
11h ago· 10 min readfrNews
Summary
This article reveals that during droughts, trees stop photosynthesis to conserve water, causing entire forests to emit more CO₂ than they absorb. With droughts becoming more frequent due to climate change, this phenomenon is alarming because forests play a critical role as carbon sinks. The article explores the physiological mechanisms behind this shift and its implications for climate regulation.
Source
bskySans eau, les forêts cessent de capter le CO₂ et deviennent émettrices de carbonetheconversation.comKey quotes
· 3 pulledPour survivre en période de sécheresse, les arbres stoppent la photosynthèse, une activité très gourmande en eau
Des forêts entières se retrouvent alors à émettre plus de CO2 qu'elles n'en capturent.
C'est une réalité révélée par les sécheresses récentes : les forêts peuvent émettre plus de CO2 qu'elles n'en capturent.
Pour survivre en période de sécheresse, les arbres stoppent la photosynthèse, une activité très gourmande en eau. Des forêts entières se retrouvent ainsi à émettre plus de CO₂ qu’elles n’en capturent.
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