Мeleteev P., Lapin E. Errors in determining the volume of a round timber stack using stacked-volume ratio and quadrant sampling method // Resources and Technology. 2026. №1, Vol. 23. P. 145‒152.

Errors in determining the volume of a round timber stack using stacked-volume ratio and quadrant sampling method

Мeleteev
Pavel

Timber expertize & inspection, expertles@mail.ru

Lapin
Evgenii

Timber expertize & inspection, expertles@ptz.ru

Key words:
round timber; stack volume; geometric method; full-wood ratio; test area

Summary: In the Russian domestic market the most common method to determine the volume of round timber is the group (geometric) method according to GOST 32594-2013 «Round timber. Measurement methods». The method allows determining the stacked-volume ratio using quadrant sampling method (the «diagonal» method or Smalian’s method) in case of disagreement between the seller and the buyer regarding the tabular conversion coefficient of the full-wood stack. In the practical work of enterprises of the timber industry in the country, this procedure to determine the stacked-volume ratio is not used due to large errors in determining the volume of round timber. Studies have been conducted to assess these deviations. To assess the deviations in determining the volume of round wood by the geometric method of the stacked-volume ratio using quadrant sampling method studies were conducted in 2025 based on the results of complex control measurements of round wood in the Pudozhsky district of the Republic of Karelia. According to the research results, the values of deviations in determining the volume of round timber by the geometric method according to the stacked-volume ratio of by the quadrant sampling method (the Smalian’s method) were obtained. The results of the study show that the deviations exceeded the permissible limits of the attributed relative error in measurements using the geometric method for determining the volume of round timber, which requires the exclusion of this procedure to determine the volume of round timber using the geometric method for the stacked-volume ratio using test area methods from the state standard GOST 32594-2013 «Round timber. Measurement methods».

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Errors in determining the volume of a round timber stack using stacked-volume ratio and quadrant sampling method