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Weight of Brushy Forest Fire Fuels from Photographs

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Abstract:

Color photographs of 3.1- and 1.55-ft-thick cross-sections of southern bayberry (Myrica cerifera L.) shrubs against a contrasting background were taken horizontally from 16 ft with the line of sight 5 ft above the ground line. When transparencies were projected onto a dot grid, dot counts for the 1.55-ft thickness were highly correlated with ovendry weights of leaves, twigs, and draped pine needles from a 10-plot calibration sample. The photographic method, including calibration, would provide an acceptably accurate estimate of weight and other characteristics of shrubby vegetation for a fraction of the cost of physical sampling. One calibration should suffice for a given species and might suffice for a group of species having similar ranges of leaf size and crown density. Forest Sci. 17:119-124.

Keywords: Myrica cerifera; sampling methods

Document Type: Journal Article

Affiliations: Research Technician, Southern Forest Exp. Sta., USDA Forest Service, Alexandria, La., Privately employed

Publication date: 1971-03-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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