Fig 6. Ordination plots of the results from the redundancy analysis (RDA) on the bacterial communities in rhizocompartments and soil factors.

(A) Correlation of soil factors to the samples of four rhizocompartment types under three leguminous plant shrubs. (B) Effects of soil factors on the major contributing bacterial taxa (20 filtered dominant genera in Fig 5C and 5D) in four rhizocompartments under three leguminous plant shrubs. CM: Caragana microphylla; HM: Hedysarum mongolicum; HS: Hedysarum scoparium. r: root; rs: rhizosphere soil; rz: root zone soil; b: inter-shrub bulk soil. Data of soil physicochemical factors are listed in S3 Table.