Fuel reduction burning mitigates wildfire effects on forest carbon and greenhouse gas emission

摘要: A high-intensity wildfire burnt through a dry Eucalyptus forest in south-eastern Australia that had been fuel reduced with fire 3 months prior, presenting unique opportunity to measure the effects of reduction (FR) on carbon and greenhouse gas (GHG) emissions from wildfires at start accumulation cycle. Less than 3% total 30-cm soil depth was transferred atmosphere FR burning; subsequent further 6% atmosphere. There 9% loss for FR–wildfire sequence. In nearby forest, last 25 years previously, burning 16% characterised by more complete combustion all fuels less surface charcoal deposition, compared fuel-reduced forest. Compared forests, release non-CO2 GHG doubled following long-unburnt Although this is maximum emission mitigation likely within planned cycle, it suggests significant potential burns mitigate forests high risk wildfires.