Boards of thickness of standing trees

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Boards of thickness of standing trees are a set of numbers, representing the average thickness of a tree depending on some of its dimensions. The most common are the tree and the height of the tree.

In Poland, tables of tree thickness have been developed by Grundner and Schwappach (commonly called Schwappach tables). They give the thickness of the whole tree and the thickness of the tree's thickness depending on the breast and tree height. Plaques were developed for pine, spruce, fir, larch, beech, oak, birch and alder. Some tree species have been developed for the tree species. There are two tables for pine trees: aged 80 and over 80 years. In Poland, there are also boards of thickness for trees in Czuraja, Radwański and Strzemeskie. Original thickness tables for pine and spruce developed by Radwański.

Determining the thickness of a tree based on the breadth and height based plate tables requires prior measurement of these tree features. However, the thickness of the tree can only be read when the dimensions of the breast and the height are rounded up to the corresponding units. For greater accuracy, double interpolation should be performed - taking into account the size of the breast and height.

For some forest management practices, knowledge of the thickness is required without the bark of the arrow and the part of the tree standing. For this purpose, tables developed in Poland by Radwański. Boards give thickness without bark at various points of the arrow and thickness without bark from base to different heights. Boards allow you to determine the thickness of the bark without the bark of any height. When using the boards, you need to know the tree of the tree and the height of the tree. Arrays can be used to perform rough estimations. Radwanski's arrays also show the thickness of the arrow in the cortex and without bark, the percentage of bark thickness (thickness of the bark expressed in percentage of the thickness of the arrow in the cortex) and the thickness of the bush. Radwański has developed such boards for pine, spruce, fir and alder. Literature

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