Peer-reviewed veterinary case report
Stabilizing Active Aluminum (Al<sup>3+</sup>) in Acidic Soils via Biochar-Induced Microbial Niches: Focusing on Denitrifier-Mediated Mechanisms, Efficiency, and Environmental Outcomes.
- Year:
- 2026
- Authors:
- He C et al.
- Affiliation:
- Institute of Environment and Sustainable Development in Agriculture · China
Abstract
The pervasive toxicity of active aluminum (Al<sup>3+</sup>) in acidic red soils threatens agroecosystem sustainability, with conventional chemical stabilizers facing cost and secondary pollution constraints. This study evaluated rice husk/sawdust and their pyrolysis-derived biochar as stabilizers, focusing on microbial synergy. Results showed 3% rice husk biochar (RB) achieved 22.1 ± 1.1% stabilization efficiency within 180 days, outperforming sawdust biochar (12.1 ± 0.8%) and raw biomass. Biochar's alkalinity and porosity created neutral niches, enriching denitrifiers (<i>Thiobacillus</i>, <i>Arthrobacter</i>, <i>Thermomonas</i>) that elevated pH, promoted Al(OH)<sub>3</sub> precipitation, and enhanced oxygen-containing functional groups. This work valorizes agricultural waste for long-term Al<sup>3+</sup> toxicity mitigation.
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Search related cases →Original publication: https://europepmc.org/article/MED/41745831