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    Author(s): T. Kachin; H. T. Gisborne
    Date: 1937
    Source: Journal of Forestry. 35(8): 736-743.
    Publication Series: Scientific Journal (JRNL)
    Station: Rocky Mountain Research Station
    PDF: Download Publication  (812.34 KB)


    The moisture content of the top layer of coniferous needles and twigs covering the forest floor is one of the factors of forest fire danger which must he determined accurately if fire danger in such timber types is to he measured. As this moisture content cannot he estimated accurately and as a difference of a few per cent of moisture, especially in the lower range, has been found to cause significantly different inflammability, measurements rather than estimates are needed.

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    Kachin, T.; Gisborne, H. T. 1937. The technique of duff hygrometer calibration. Journal of Forestry. 35(8): 736-743.


    duff hygrometer, moisture content, needles, forest floor, fire danger

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