Han & Lim (2026): Net CO₂ removal in Korean orchard soils using prunings-derived biochar: effects of pyrolysis type and CH₄ emissions in biochar production stage
Kyung-Hwa Han and Min-Hyo Lim, IN: Korean Journal of Soil Science and Fertilizer, https://doi.org/10.7745/KJSSF.2026.59.1.077
This study evaluated the net carbon dioxide (CO₂) removal (NCR) potential of a local circular system utilizing orchard-pruning residues for biochar production. The life-cycle system comprised six stages: residue collection and natural drying, chipping, transport of chipped residues, local biochar production, biochar transport, and biochar application to orchards. The analysis focused on the biochar production stage, comparing pyrolysis types (TLUD and rotary kiln) and methane (CH₄) emission factors (combustion and feedstock moisture). The amount of orchard-pruning residues was estimated for each city and county based on fruit orchard area in 2022, fruit production, and biomass conversion factors.