Claim · model-written summary
Elevated CO2 increases background biomass density, making extra carbon loss possible during severe drought.
- Taxon
- biomasse0
- Treatment
- eCO2e0
- Outcome
- background biomass densitye0
- Direction
- increasee0
- Qualifier
- when severe droughts happene0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Verbatim
e0“extra carbon losses could still occur due to an eCO2-induced increase in background biomass density, leading to “more carbon available to lose” when severe droughts happen”
Title
The impacts of elevated CO 2 on forest growth, mortality, and recovery in the Amazon rainforest
Yitong Yao; Philippe Ciais; Emilie Joetzjer; et al. Earth System Dynamics 2024. doi:10.5194/esd-15-763-2024
Other claims from this paper (8)
- Intervention effect Elevated CO2 enhances Amazon forest growth in the simulations.
- Intervention effect Elevated CO2 promotes competition among Amazon forest trees in the simulations.
- Intervention effect Elevated CO2 increases natural self-thinning of Amazon forest stands in the simulations.
- Observation The simulated forest growth gain outweighs the associated tree loss under elevated CO2.
- Intervention effect Elevated CO2 reduces the risk of Amazon tree mortality during drought through water-saving benefits.
- Mechanism Elevated CO2 may increase carbon losses during severe drought because more background biomass is available to lose.
- Intervention effect Elevated CO2 accelerates simulated drought recovery in the Amazon forest.
- Intervention effect Elevated CO2 enhances simulated drought resistance and resilience in the Amazon forest.