Decarbonising bonus from ancient soil-enrichment | FT Food Revolution
古代土壤富集的脫碳紅利

Biological charcoal is produced when organic matter, such as waste wood, is heated with little or no oxygen present
當廢木等有機物在氧氣很少或沒有氧氣的情況下加熱時，就會產生生物炭。