Extended Data Fig. 6: Comparison of the CO2 effect size (%) and the associated confidence intervals for major (a) plant and (b) soil phosphorus concentration variables, calculated by the original approach as reported in the main text (Original) and a bootstrapping method (Bootstrap, Supplementary Information 2.2). | Nature

Extended Data Fig. 6: Comparison of the CO2 effect size (%) and the associated confidence intervals for major (a) plant and (b) soil phosphorus concentration variables, calculated by the original approach as reported in the main text (Original) and a bootstrapping method (Bootstrap, Supplementary Information 2.2).

From: Microbial competition for phosphorus limits the CO2 response of a mature forest

Extended Data Fig. 6

(a) The CO2 effects on plant P concentrations in canopy, fine root, leaf litter, understorey and frass P; (b) The CO2 effects on soil phosphorus concentrations of microbial P, labile soil P and total soil P at different soil depths (0–10 cm, 10–30 cm or 30–60 cm). Values indicate the mean absolute CO2 effect, calculated by using elevated minus ambient CO2 treatment (n = 3), with the coloured bars indicating confidence intervals at 95%, 85% and 75% (two-tailed t-test, with lighter colours indicating higher confidence levels).

Back to article page