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    Author(s): David AzumaVicente J. Monleon
    Date: 2011
    Source: Canadian Journal of Forestry Research. 41: 211-214.
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: Download Publication  (343.88 KB)

    Description

    In forest inventory, it is not enough to formulate a definition; it is also necessary to define the "measurement procedure." In the classification of forestland by dominant cover type, the measurement design (the plot) can affect the outcome of the classification. We present results of a simulation study comparing classification of the dominant cover type between fixed- and variable-radius plot designs. We also show the effect of species distribution and partially sampled plots on these classifications. Plot type, area sampled, and the way in which the species are distributed influence the outcome of the classification. Thus, estimated changes in forest area may be an artifact of plot design changes, rather than actual population change.

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    Citation

    Azuma, David; Monleon, Vicente J. 2011. Differences in forest area classification based on tree tally from variable- and fixed-radius plots. Canadian Journal of Forest Research. 41: 211-214.

    Keywords

    forest classification, fixed-radius plot, variable-radius plot

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