Composition and metabolic potential of microbial communities in chemically contaminated soils: a multi-dimensional assessment

and Deltaproteobacteria showed significant positive correlations with naphthalene and benzene substituents. Aniline compounds and high-molecular-weight PAHs were primary drivers reducing soil microbial richness and community complexity. Functional prediction based on KEGG and COG indicates that soil microbiomes at different contaminated sites adapt to chemical pollution and remodel community functions through an integrated membrane transport-regulation-catabolism response, characterized by site-specific enrichment of efflux pumps, transport systems, and xenobiotic degradation pathways. This work provides valuable data and scientific support for management of emerging contaminants in chemically contaminated soil.