Nowadays in the references there are no data on volume characteristics of stem wood of Maxi-movicz bird-cherry tree, it brings certain difficulties for the calculation of stock per unit area. The purpose of the study was drawing up standard ref-erence material for resource assessment of re-serves of Maximovicz bird-cherry tree trunk. The main attention in the research process was given to forestry and forest taxation issues. In this case the methods of route surveys with indicator of plots lying were applied. Experimental material was pre-sented in the amount of 75 accounting trees. The basis for calculating the scale of the digits of heights is generalizing curve of the relationship of heights and trunk diameters of the whole set of measured trees. The curve was calculated as arithmetic means of altitude measurements for all steps of thickness As a result of the processing of model trees the scale was developed for determin-ing the digits of the heights of forest stands. The bark share in percentage expression was defined. It was revealed that the essential difference on bark exit between categories of heights was not present, and they treat one population. The part of cortex in percentage terms was determined It was revealed that there was no significant difference in the yield of the cortex between the digits of heights, and they belong to the same general population. Three-dimensional tables for Maximowicz bird-cherry tree trunks have been compiled. It was established that the accuracy of the stock determination was within permissible limits ± 13 %. The use of regression equations allows increasing significantly the productivity of calculation work. The tables of vol-umes for three digits of heights can be used in for-est management and recommended for application by scientists and forestry workers when determin-ing the resource of potential and volume character-istics of Maximovicz bird-cherry trees in natural and cultural phytocenoses.
Maximovicz bird-cherry tree, digits of heights, three-dimensional tables
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