Biochar rebuilds the network complexity of rare and abundant microbial taxa in reclaimed soil of mining areas to cooperatively avert cadmium stress

• DOI: 10.3389/fmicb.2022.972300
• Publication Date: 2022-08-02T04:39:45Z
• Authors: Yanfeng Zhu; Xiaoping Ge; Liping Wang; Yunnan You; Yanjun Cheng; Jing Ma; Fu Chen
• Keywords: Environmental Impact of Heavy Metal Contamination; Microbial population biology; Health, Toxicology and Mutagenesis; rare and abundant microbial taxa; Cd-contaminated soil; Organic chemistry; Soil pH; Microbiology; 01 natural sciences; Contamination; Soil water; microbial network; Genetics; Chromium Bioremediation and Health Impacts; biochar; mine reclamation; Biology; 0105 earth and related environmental sciences; Ecology; Bacteria; Environmental remediation; Marine Microbial Diversity and Biogeography; 15. Life on land; Pollution; QR1-502; 6. Clean water; Actinobacteria; Biochar; Chemistry; 13. Climate action; FOS: Biological sciences; Environmental Science; Physical Sciences; Environmental chemistry; Organic matter; Bioremediation; Pyrolysis; Cadmium; 16S ribosomal RNA

Understanding the interactions between soil microbial communities and species is critical in remediation of heavy metal-contaminated soil. Biochar has been widely applied as a stabilizer situ cadmium (Cd)-contaminated soils mining areas. However, rebuilding taxa rare abundant by biochar their cooperative resistance to Cd stress remains elusive. In this pursuit, present study envisaged effects two types biochars viz., poplar bark (PB) thiourea-modified (TP) on bacterial fungal using pot experiments. The results demonstrated that PB TP treatments significantly reduced leached content, 35.13 68.05%, respectively, compared with control group (CK), reclaimed area. application improved physicochemical properties like pH Soil Organic Matter (SOM) It was observed treatment superior CK groups increasing diversity taxa. Compared group, enhanced elevated complexity networks taxa, increased number network core microorganisms, reshaped microorganisms hubs, boosted stress. Our indicate response mechanism synergistic Cd-contaminated soil, thereby providing technical feasibility for