BioChar refers to the carbon-rich materials (charcoal) produced from heating forest residue in a low oxygen environment.

Recently, there has been much interest in BioChar as soil amendments to improve and maintain soil fertility and to increase soil carbon sequestration.

The capacity to sequester carbon in the soil can be attributed to the relative stable nature and, therefore, long turnover time of biochar in soil and is of particular relevance to the solution of climate change.