Table 4 Importance of the variables in the random forest model classification, showed as mean decrease accuracy (MDA; loss of model accuracy if the variable is excluded from the model, higher values indicate greater importance)

Elevation

Maximum temperature July

Terrain ruggedness

Deciduous broad-leaved tree

Annual precipitation

Fern

Deciduous liana

Enhanced Vegetation Index July

Aciculifolious tree

Perennial liana

Perennial broad-leaved bush

Sub-shrub

Alien plants %

Perennial grass

Deciduous broad-leaved bush

Perennial broad-leaved tree

Equisetum

Lycophyte

Aciculifolious bush