Fig. 4
From: Diversity of bacterium communities in saline-alkali soil in arid regions of Northwest China
Venn graph of the numbers of shared and unique operational taxonomic units (OTUs) among 5 subtypes and 13 genera of saline-alkali soil in arid regions of northwest China The overlapping part represents the shared OTUs; non-overlapping part represents the specific OTUs of the given genera; and the number means the corresponding amount of OTUs. Notes: MS, OS, BS, AS, and DS represent meadow solonchaks, orthic solonchaks, bog solonchaks, alkalized solonchaks, and dry solonchaks, respectively. CT, SCT, CST, ST, Mg.S represent chloride-type, sulfate-chloride-type, chloride-sulfate-type, sulphate-type, and magnesium solonetz, respectively