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Fuelbed Changes with Aging of Slash from Ponderosa Pine Thinnings

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Fuel loading stratified by standard fuel size classes and fuelbed depth data from 11 precommercially thinned stands of ponderosa pine (Pinus ponderosa Dougl. ex Laws) indicated that changes in slash fuelbeds varying in age from 0 to 17 years can be described mathematically as a function of slash age and basal area of trees removed. Least-squares equation of the form

In(fuelbed characteristic) =

a + b·In(basal area removed) + c·(age)

gave R² values from 0.74 to 0.96, and all equations were significant at the 99-percent level. Prescribed burning produced changes in loading and bed depth that were the equivalent of 2 to 20 or more years of natural aging. These results should be of use to land managers, but since they are from one drainage of the eastern side of the Cascade Range in Washington they may need adjusting before being applied to other areas.

Document Type: Journal Article

Affiliations: Associate Professor of Forestry at the University of Washington, Seattle

Publication date: February 1, 1982

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  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.

    2015 Impact Factor: 1.476
    Ranking: 22 of 66 in forestry

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