Effects of Land Reclamation on Soil Bacterial Community and Potential Functions in Bauxite Mining Area.

The α-proteobacteria could be further classified into three dominant families (relative abundance >1%) of Hyphomicrobiaceae, Rhodospirillaceae, and Sphingomonadaceae ( Figure S1 ), among which the relative abundances of the first two families (1.84~4.98% and 1.03~3.68%) showed increasing trends with the increase in reclamation years, and they all showed highly significant positive correlations with SOC, DOC, TN, AN, NO 3 − -N, and AP ( p < 0.01) ( Figure S2 ).

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The relative abundance of α-proteobacteria roughly showed an increasing trend with the increase in reclamation years.

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