Biochar
A stable, carbon-rich material created by heating biomass in a low-oxygen environment.
What is Biochar?
Biochar is a charcoal-like substance produced by heating biomass (such as agricultural waste, wood chips, or manure) in a low-oxygen process called pyrolysis. It is highly stable and can store carbon for hundreds to thousands of years, making it a powerful tool for carbon removal.
Why is Biochar important?
Biochar is important for its dual benefits: it sequesters carbon long-term, and when added to soil, it can significantly improve soil fertility, water retention, and nutrient availability. This enhances agricultural productivity while reducing the need for synthetic fertilizers, contributing to both climate mitigation and sustainable land management.
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Frequently asked questions
Biochar is produced through pyrolysis a thermochemical process that involves heating biomass in the absence or near absence of oxygen."
Adding biochar to soil can improve soil structure, increase water and nutrient retention, reduce nutrient leaching, enhance microbial activity, and suppress soil-borne diseases.
Biochar is considered a highly durable form of carbon storage. Its recalcitrant nature means it resists decomposition in soil for hundreds to thousands of years, making it a promising long-term carbon sink.