ANALYSIS METHOD FOR SECONDARY tree trunk forest stands

摘要

1. A method for analyzing wood trunks secondary forest stand, comprising selecting a test area in the stand, the selection of each model tree on the plot, the description property values ​​of the selected model tree and places its growth, causing the barrel elevations of the north and south sides, establishing the root neck locations , sawing the tree root collar around the trunk, the trunk measuring distances of characteristic points to the first barrel and a first dead live knots, before the start of the crown, as well as other taxational indicators barrel counting starting from the butt into separate sections of length times (0.5, 1, or 2 m) or non-multiple lengths depending on the purpose of analysis of the barrel and the required accuracy studies sawing discs from the shaft bottom to its top, the first cut to make place markers around the root collar, and the second - some distance from it to the top of the circle to the thickness of each cut-off mark mug gives Room plot, model tree, and cut-off circle, make a few notations smoothed the top of the circles, and the lower Asti circles in laboratory conditions are used to calculate the annual rings and the diameter measurement and the cross-section of the barrel radius, besides markup barrel performed on sections nonmultiple lengths depending on the location of the branches bases, knots and other irregularities of the barrel, wherein the section nonmultiple length mark out at least twice - first in places smallest diameter between the bases of branches and twigs, and other irregularities in the surface of a model of a tree trunk, and then on top of these irregularities to the measurement acc