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Wedge prism as a tool for diameter and distance measurement

Author

Listed:
  • L. Šálek

    (Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • D. Zahradník

    (Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

The wedge prism, which is generally used for the measurement of basal area in diameter at breast height, is also a tool for the measurement of distance as well as for the measurement of diameters at a certain height of the stem, in the upper stem. Measurements using the wedge prism are based on the same principle as measurements using Bitterlich mirror relascope. This method is appropriate for non-destructive determination of stem volume. Moreover, the wedge prism can be used for the sorting of logs in standing trees when the small end of expectant assortment has to be known. As the wedge prism is a common tool for foresters, its usage seems to be larger than only the measurement of basal area.

Suggested Citation

  • L. Šálek & D. Zahradník, 2008. "Wedge prism as a tool for diameter and distance measurement," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 54(3), pages 121-124.
    • Handle: RePEc:caa:jnljfs:v:54:y:2008:i:3:id:3033-jfs
    DOI: 10.17221/3033-JFS
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