Fig.2Relative abundance of the bacterial and (a) and fungal (b) communities at the phylum level based on Illumina sequencing of the 16S and ITS2 region. Nonmetric multidimensional scaling (NMDS) based on Bray-Curtis dissimilarity displaying effect of slope gradient and position on soil bacterial (c) and fungal (d) communities’ composition. L, low slope gradient, M medium slope gradient, H high slope gradient, T top slope position, M middle slope position, B bottom slope position.