Table 2.

Network key hubs and taxonomic properties in the QS, HL and BQL (order; family; genus; species).

Sample name	Soil type	OUT ID	Degree	Abundance (%)	Taxonomy (phylum; class; order; family; genus; species)
QS	Black calcium soil	ASV0049	76	0.00366	p__Proteobacteria; c__Gammaproteobacteria; o__Legionellales
		ASV0344	58	0.01533	p__Proteobacteria; c__Gammaproteobacteria; o__Enterobacteriales; f__Enterobacteriaceae; g__Enterobacter
		ASV0031	54	0.00478	p__Firmicutes; c__Bacilli; o__Bacillales; f__Bacillaceae; g__Bacillus
HL	Black soil	ASV7234	62	0.16607	p__Proteobacteria; c__Gammaproteobacteria; o__Pseudomonadales; f__Pseudomonadaceae; g__Pseudomonas; s__veronii
		ASV7577	61	0.25279	p__Proteobacteria; c__Gammaproteobacteria; o__Xanthomonadales; f__Xanthomonadaceae; g__Stenotrophomonas; s__maltophilia
		ASV7017	61	0.49401	p__Proteobacteria; c__Gammaproteobacteria; o__Enterobacteriales; f__Enterobacteriaceae; g__Citrobacter
BQL	Dark brown soil	ASV7070	52	0.11085	p__Proteobacteria; c__Gammaproteobacteria; o__Pseudomonadales; f__Pseudomonadaceae; g__Pseudomonas; s__veronii
		ASV7025	52	0.06301	p__Proteobacteria; c__Gammaproteobacteria; o__Pseudomonadales; f__Moraxellaceae; g__Acinetobacter; s__johnsonii
		ASV7361	52	0.15905	p__Proteobacteria; c__Gammaproteobacteria; o__Xanthomonadales; f__Xanthomonadaceae; g__Stenotrophomonas; s__maltophilia