The Effect of Combustion Conditions on Emissions of Elemental Carbon and Organic Carbon and Formation of Secondary Organic Carbon in Simulated Wildland Fires.

ABSTRACT: We investigated the influence of combustion conditions on emissions of elemental carbon (EC) and organic carbon (OC) and the formation of secondary organic carbon (SOC) in wildland fires. We performed combustion experiments using fuel beds representative of three ecoregions in the Southeastern U.S. and varied the fuel-bed moisture content to simulate either prescribed fires (Rx) or drought-induced wildfires (Wild). We used fire radiative energy normalized by fuel-bed mass (FRE_norm) as a proxy for combustion conditions. For fuel beds that contained surface fuels only, the higher moisture content in Rx led to lower FRE_norm compared to Wild and consequently led to lower EC emissions, but higher OC emissions and SOC formation. For fuel beds that contained duff in addition

SUBMITTER: Penland R 

PROVIDER: S-EPMC12519481 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature