Impact of biochar on carbon sequestration in permafrost region of Northeast China

Biochar promoted soil aggregate formation, improved soil carbon sequestration capacity, and reduced CO₂ emissions by 19.37% (forest) and 9.70% (peatland). These findings confirmed the dual functionality of biochar in increasing soil carbon storage and reducing carbon emissions. The study provides valuable insights for enhancing carbon management strategies in vulnerable permafrost ecosystems, emphasizing the potential of biochar in soil management.