Fig. 4From: Soil quality estimation using environmental covariates and predictive models: an example from tropical soils of NigeriaImportance of variables in the A random forest model (RF), B support vector regression model (SVR), C Cubist model, and D multiple linear regression model (MLR). PlCurv plane curvature, PrCurv profile curvature, TCA total catchment area, TWI topography wetness index, LSWI land surface water index, B3 Sentinel-2 green band, B4 Sentinel-2 red band, B7 Sentinel-2 red edge bandBack to article page