Figure 3: Covariate importance.
From: Precise estimation of soil organic carbon stocks in the northeast Tibetan Plateau
Lat, latitude; Lon, longitude; NDVI, the normalized difference vegetation index; B3, Landsat TM band 3; B4, Landsat TM band 4; B5, Landsat TM band 5; MAP, mean annual precipitation; MAT, mean annual temperature; SL, slope length; Plan_cur, plan curvature; Prof_cur, profile curvature; CA, catchment area; TWI, SAGA wetness index, MrVBF, multi-resolution index of valley bottom flatness and VD, valley depth.
