Plantations of Cinnamomum camphora (Linn) Presl with Distinct Soil Bacterial Communities Mitigate Soil Acidity within Polluted Locations in Southwest China

Although the underlying mechanisms remain unknown, soils from different forest types exhibit distinct acidification-buffering capacities. We investigated soil properties and bacterial communities across five plantation horizons in a severely acid-polluted site Southwest China evaluated potential driving differences community structure. Soils collected pure stands of Pinus massoniana Lamb.or Schima superba Gardn. et Champ. or mixed these species showed lowest pH greater abundances acid-producing acidophilic taxa (Halanaerobiales Rhodospirillales). Cinnamomum camphora (Linn) Presl, mixture C. P. massoniana, yielded greatest concentrations exchangeable calcium (Ca) magnesium (Mg) pH. Increased relative beneficial may have contributed to aggregate formation (e.g., Bradyrhizobium canariense Terracidiphilus sp.) heightened environmental stress resistance Gaiellales). Fewer found associated with suggest that planting help recover acidification, while S. not be as beneficial. Our findings illustrate how microbial impact soil-acidification-buffering capacity types, which important implications for understanding functions within context diversity.