To the issue of building standards for materials of the state inventarizacii forests by the example of plantations of larix dahurica

Abstract

Genus Larix – one of the most common in the Russian far East representatives of the pine family. The conducted GIL showed that in the Khabarovsk territory the area occupied by Larix dahurica is 33.7 % of the total forest area, Kayanader larch is 0.2 %. In the far Eastern taiga forest area, larch forms mainly forest plantations, in the AmurPrimorsky coniferous-deciduous forest area, it is found almost everywhere with an admixture of birch or spruce. In General, the edge is marked by low quality Larix dahurica wood. Of the total number of trees accounted for – 3747666.7 thousand pieces. less than half (46.6 %) attributed to business trunks, 29.8 % – to poludelovym and 27.1 % – wood. Larix dahurica is one of the most studied tree species in the region. This led to the development of an extensive regulatory framework for this breed. The involvement of unsystematic experimental material indicated its low accuracy and, as a consequence, low accuracy of the developed standards. At the state inventory of the woods the basic taxation indicator – a stock of a stand define with the predetermined accuracy (2,5–5 %). Therefore, the accuracy of standards developed on the basis of these materials will be similar. According to the materials of the state inventory of forests, the interrelations of taxation indicators of Larix dahurica are studied. Regressions with the highest determination coefficients were selected for practical calculations. The justification of the known ratio 3/2, used to calculate the optimal number of barrels, is given. As an example, on the same experimental material, two tables of the growth course are constructed, in which the dynamics of the average values of taxation indicators is calculated according to different regression equations. Different regression had an impact on the dynamics of the stock of forest stands of Larix dahurica