Table 4 Impact of biochar and soil properties on soil organic carbon mineralization and carbon sequestration potential

From: Use of biomass-derived biochar as a sustainable material for carbon sequestration in soil: recent advancements and future perspectives

Biochar/soil properties

Differential effects

References

Aged/fresh biochar

Addition of aged and fresh biochars decreased soil CO2 emissions

91

Biochar with low amount of ash

Low-ash containing biochar shows higher potential for long-term soil carbon storage compared ash having high amount of ash

102

Biochar synthesized at lower temperature

Release of biochar-derived dissolved organic carbon, and SOC mineralization

89

Biochar synthesized at higher temperature

Higher porosity and retain more SOC

90

Biochar particle size

Lower CO2 release in larger particle size biochar (>2 mm)

103

Acidic soil

Accelerated biochar aging and SOC mineralization rate

71

Sandy loom soil

Higher SOC mineralization

96,105

Sandy clay loom soil

Lower SOC mineralization

96,105

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