Microbial Community Structure and Predictive Functional Analysis in Reclaimed Soil with Different Vegetation Types: The Example of the Xiaoyi Mine Waste Dump in Shanxi

We explored the characteristics of soil bacterial communities and their ecological functions under different types vegetation reclamation in open-pit mines on Loess Plateau, which is guiding significance for selection improvement restoration effect mining areas. The research object was to reclaim aluminum mine waste dump Xiaoyi County, Shanxi. were measured reclamation. community using 16S rRNA gene high-throughput sequencing technology. function predicted PICRUSt method. correlation between physical chemical properties structure analyzed. From results, (1) compositions reclaimed samples 33 phyla, 90 classes, 121 orders, 207 families, 298 genera, 140 species. abundance diversity microbial showed rule yellow rose > lespedeza sweet wormwood herb alfalfa. (2) Proteobacteria dominant bacteria alfalfa samples, accounting 36.09–43.36%. actinobacteria accounted 53.34–53.39%. α-Proteobacteria, actinobacteria, β-proteobacteria four types. relative α-proteobacteria positively correlated with organic carbon (SOC) negatively total kalium (TK). Actinobacteria available (AK) SOC nitrogen (TN). (3) There no difference primary after plants, main metabolism, genetic information processing, environmental 81.52%. (4) functional genes metabolism other amino acids, folding, sorting, degradation glycan biosynthesis relatively rich rhizosphere rose. signal molecules interaction, transport, catabolism highest. carbohydrate translation, energy Therefore, there significant differences among rose, lespedeza, herb, alfalfa, they also affected by properties. Hence, we concluded that can help select plants sustainable development remediation