Extended Data Figure 6: Pearson correlations between turnover times of carbon in terrestrial ecosystems and tree cover, also controlled for the variability in precipitation.

a, Pearson correlations between τ and tree cover. The prevalence of strong negative correlations suggests that the association could be mediated by precipitation variability. b, Controlling for precipitation still showed many of those negative correlation regions. These negative correlations are most clear in regions where tree cover is not so high or where spatial variability seems higher. c, Map of tree cover percentage from MODIS⁷¹.