Synergistic Regulation of Soil Enzymes and Microbial Communities by Biochar‐Supported Nano‐Hydroxyapatite Under Cadmium Stress

Biochar has been globally recognized as an effective amendment for enhancing soil fertility and mitigating climate change, but its improvement of microbial communities and enzyme activities remains limited. Soil incubation experiments were conducted using nano‐hydroxyapatite (nHAP)‐modified biochars derived from corn straw, sawdust, and rice straw. The objective was to investigate changes in microbial community structure, composition, and soil enzyme dynamics under cadmium‐contaminated conditions. The results showed that all passivation materials significantly increased urease and sucrase activities while decreasing acid phosphatase activity ( p

Acid phosphatase · Amendment · Biochar · Ecological succession · Enzyme assay · Microbial population biology · Soil biology · Soil ecology · Soil fertility · Urease · Chromium effects and bioremediation · Microbial Applications in Construction Materials · Nanoparticles: synthesis and applications