Claim · model-written summary
The soil carbon to nitrogen ratio decreased regardless of CO2 treatment.
- Taxon
- Betula pendula, Alnus glutinosa and Fagus sylvatica
Betula pendula.jpg?width=60)
Alnus glutinosa
Fagus sylvaticat0 - Outcome
- soil C/N ratioe0
- Direction
- decreasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the soil C/N ratio decreased regardless of CO2 treatment”
t0“Betula pendula, Alnus glutinosa and Fagus sylvatica”
Title
M. R. Hoosbeek; M. Lukac; E. Velthorst; et al. Biogeosciences 2011. doi:10.5194/bg-8-353-2011
Other claims from this paper (6)
- Intervention effect Elevated CO2 increased mean biomass across three tree species by 17%.
- Observation Soil carbon and nitrogen contents rose following afforestation regardless of treatment or species.
- Intervention effect Elevated CO2 did not add a detectable soil carbon sink or affect soil carbon stabilization.
- Intervention effect Leaf nitrogen decreased under elevated CO2 in Betula and Alnus.
- Intervention effect Elevated CO2 did not affect the ratio of soil nitrogen uptake to nitrogen fixation in Alnus.
- Mechanism The authors infer that greater nitrogen use efficiency sustains NPP under elevated CO2.