Category:Fuel Consumption

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Depth of Burn

Burn pin2 (600x800).jpg

'Depth of burn represents the degree of reduction in organic layer thickness due to consumption by the fire process which in turn determines postfire organic-layer depth and percentage of mineral soil exposure.' (Alexander 1982, p.355)

Depth of burn measurments can be used to determine duff consumption measured in kg/m 2. McRae et al. 1979 outline procedures for pre-burn measurement of duff depth and loading (p.24) and post-burn depth of burn measurement (p. 32) to determine overall duff consumption.


Alexander, M.E. 1982. Calculating and interpreting forest fire intensities. Can. J. Bot. 60: 349-357.

McRae,D.J.; Alexander,M.E.; and Stocks,B.J. 1979. Measurement and description of fuels and fire behavior on prescribed burns: A handbook. Can. For. Serv. Rep. O-X-287, Great Lakes For. Res. Cent., 56 pp.

Suggested Reading

Van Wagner, C.E. 1972. Heat of combustion, heat yield and fire behaviour. Can. For. Serv. Inf. Rep. PS-X-35.

Brown, James K.; Marsden, Michael A.; Ryan, Kevin C., and Reinhardt, Elizabeth D. 1985 Predicting duff and woody fuel consumed by prescribed fire in the northern Rocky Mountains. Ogden, Utah : U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station; 1985; Research Paper INT-337. 23 p.

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