Figure 2
From: Soil carbon is a useful surrogate for conservation planning in developing nations

Boxplots of relative importance values of the environmental variables based on mean decrease in Gini index across twenty random runs of random forest models. Soil Age = number of years before present that the soil on site formed, Landform Classification = the landform classification of Meybeck et al.23, EpochSoilFormation = Epoch when the soil on site was formed, MinNDVI = minimum Normalized Difference Vegetation Index, mTempWettestQuarter = mean Temperature of the Wettest Quarter, DepositionayEnvSoilFormation = Depositionary Environment during Soil Formation, TopogrVarSampleLocation = Topographic Variability in a 500 m diameter spatial window around the Sample Location, mTempcoldestQuarter = mean Temperature of the Coldest Quarter. More detailed description of variable labels of lesser important is given in Peri et al.29.