Silva Balcanica 24(2): 37-43, doi: 10.3897/silvabalcanica.22.e103848
Local taper functions for natural black pine forests in the Northwestern Rhodopes in Bulgaria Local taper functions for black pine
Filip Ustabashiev‡‡ Forest Research Institute, BAS, Sofia, Bulgaria
Corresponding author: Filip Ustabashiev ( filip_ust@abv.bg ) Academic editor: Ivailo Markoff © Filip Ustabashiev. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Citation:
Ustabashiev F (2023) Local taper functions for natural black pine forests in the Northwestern Rhodopes in Bulgaria Local taper functions for black pine. Silva Balcanica 24(2): 37-43. https://doi.org/10.3897/silvabalcanica.22.e103848 |  |
Abstract
Unlike the heavily deforested Eastern or Low Rhodopes, the Western or High Rhodopes are one of Bulgaria’s main forestry areas, where black pine is widespread and economically important. Based on stem analyzes, an average taper curve for black pine stems in the Northwestern Rhodopes was determined. The method of relative taper curves (echte Ausbauchungsreihen) was used. Taper models based on spline functions and power functions were fitted. A comparison with the official assortment table of Nedyalkov was made. The systematic deviation of the sample stems from the long-used assortment table justifies the development of a local black pine table.
Keywords
Аssortment tables, merchantable volume, assortment standards