Gross et al. (2024): Long-term biochar and soil organic carbon stability – evidence from long-term field experiments in Germany

Arthur Gross, Tobias Bromm, Steven Polifka, Daniel Fischer, Bruno Glaser IN: EGU General Assembly 2024,

This study proves that SOC sequestration through the use of biochar amendments is possible. However, it seems to depend on soil and biochar properties such as soil texture whether SOC stocks are stable in the long-term and dissipation can be mitigated, with the loamy soil seemingly offering better sequestration conditions. As considerable biochar dissipation was observed in both soils, further studies need to investigate whether the dissipation is due to lateral and/or vertical particle transport or microbial decomposition. This is an important question for the suitability of biochar as a reliable CO2 removal technology.