Fire and Fuel Dynamics of Sierra Nevada Conifers

Abstract Fuel dynamics were studied in a mixed-conifer forest in the Sierra Nevada. Accretion rates showed no apparent differences between species, but decomposition and caloric content of the forest floor did vary by species. Prescribed burning of the forest floor with a headfire at 10% analog fuel moisture reduced fine fuel loads 60–70%, depending on species and the loading of heavier branch and twig fuels. Pine fuels can effectively be reduced by spring, summer or fall burning, but white fir and giant sequoia fuels require drier summer or fall conditions. The implications of fire management in these ecosystems are discussed.