ArticleEco-Environment & Health2025
Bacteria-inoculated biochar boosts copper immobilization and carbon sequestration via microbial restructuring and pH regulation.
Article in Eco-Environment & Health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Intensive agriculture aggravates soil acidification and heavy metal contamination. Biochar and its composites are cost-effective, carbon-rich amendments that can influence both heavy metal and soil carbon cycling, yet their synergistic mechanisms remain unclear. In this study, a combination of the diffusive gradient in thin films (DGT) technique, Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS), and high-throughput sequencing was applied to investigate the effects of various biochar-based amendments: plain biochar, bacteria-inoculated biochar, and biochar combined with oyster shell powder on copper (Cu) stabilization and carbon dynamics in acidic orchard soils. All amendments significantly raised soil pH (by 1.03-2.54 units) and organic matter content, while reducing bioavailable Cu (DGT-Cu) by 60%-73%. Bacteria-inoculated biochar exhibited superior performance, lowering microbial metabolic quotient (qCO
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