RATIO REGULARITIES OF THE WHITE BIRCH DIAMETERS AT BREAST-HEIGHT AND STUMP-HEIGHT UNDER THE CONDITIONS OF CENTRAL SIBERIA
The paper deals with the study on the ratio of white birch (Betula pendula) trunk diameters at breast-height and at the height of the point of cutting. It is established that one shouldn't devise single standards because this might lead to serious errors. When designing local projects it is recommended to apply the stump-height diameter and the diameter at 1.3 m. height.