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Duff reduction by prescribed underburning in Douglas-fir.Author(s): David V. Sandberg
Source: Res. Pap. PNW-RP-272. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 18 p
Publication Series: Research Paper (RP)
Station: Pacific Northwest Research Station
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DescriptionPredictive equations for duff reduction and mineral soil exposure by prescribed fire are presented. An explanation is suggested for the dependence of duff combustion on surface fuel combustion. Surface fire duration and fuel moisture estimates of the National Fire-Danger Rating 1,000-hour timelag are the best predictors for reduction in moist duff. Duff layers with less than 30-percent moisture burned independently of surface fires.
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CitationSandberg, David V. 1980. Duff reduction by prescribed underburning in Douglas-fir. Res. Pap. PNW-RP-272. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 18 p
KeywordsDuff, fire effects, prescribed burning, site preparation
- Predicting duff consumption from prescribed burns on conifer clearcuts in western Oregon and western Washington.
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- Measuring moisture dynamics to predict fire severity in longleaf pine forests.
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