Biochar: Direct and indirect benefits
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The pyrolysis of forest- or agriculture-derived biomass residue generates
a biofuel without competition with crop production.
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Biochar is a pyrolysis byproduct that may be ploughed into soils in crop
fields to enhance their fertility and stability, and for medium- to long-term
carbon sequestration in these soils. It has meant a remarkable improvement in
tropical soils showing positive effects in increasing soil fertility and in
improving disease resistance in West European Soils.
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Biochar enhances the natural process: the biosphere captures CO2, especially
through plant production, but only a small portion is stably sequestered for
a relatively long time (soil, wood, etc.).
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Biomass production to obtain biofuels and biochar for carbon sequestration in
the soil is a carbon-negative process, i.e. more CO2 is removed from the
atmosphere than released, thus enabling long-term sequestration.
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