Academic Journal
Dimensional and qualitative structure of Quercus robur L. trunks in stands of coppice origin of the Left-Bank Forest-Steppe of Ukraine ; Размерно-качественная структура стволов Quercus robur L. в древостоях вегетативного происхождения Левобережной Лесостепи Украины ; Розмірно-якісна структура стовбурів Quercus robur L. у деревостанах вегетативного походження Лівобережного Лісостепу України
| العنوان: | Dimensional and qualitative structure of Quercus robur L. trunks in stands of coppice origin of the Left-Bank Forest-Steppe of Ukraine ; Размерно-качественная структура стволов Quercus robur L. в древостоях вегетативного происхождения Левобережной Лесостепи Украины ; Розмірно-якісна структура стовбурів Quercus robur L. у деревостанах вегетативного походження Лівобережного Лісостепу України |
|---|---|
| المؤلفون: | Pasternak, Volodymyr, Slysh, Olexandr, Nazarenko, Vitalii |
| المصدر: | Proceedings of the Forestry Academy of Sciences of Ukraine; № 22 (2021): Наукові праці Лісівничої академії наук України; 165-172 ; Наукові праці Лісівничої академії наук України; № 22 (2021): Наукові праці Лісівничої академії наук України; 165-172 ; Научные труды Лесной академии наук Украины; № 22 (2021): Наукові праці Лісівничої академії наук України; 165-172 ; 2616-5015 ; 1991-606X |
| بيانات النشر: | Лісівничої академія наук України |
| سنة النشر: | 2021 |
| الوصف: | One of the important tasks of the production activity of forestry enterprises in Ukraine is to determine the structure of operational forests. In the current conditions, part of the regulatory framework, which was developed in previous years to address these issues, has partially lost relevance because of new standards adopted. The experimental data are presented by the results of measuring 256 model oak trees on 28 temporary sample plots in premature, mature and overmature oak stands of coppice origin of the Left-Bank Forest-Steppe. To obtain data on the distribution of industrial timber by quality and size classes, we used the algorithm of conditional bucking of model trees and implemented it in the Field-Map Stem Analyst. The volume of the merchantable part of the trunks was calculated in the bark and without the bark sequentially, from the base to the top of the trunk, according to the requirements for the appropriate quality class. The classification of logs by quality was carried out both according to the standards in force until 2019 (hereinafter - GOST) and according to the new ones, which came into force in 2019 (DSTU). The closest linear correlation is established for absolute values of volumes of qualitative categories of timber with volume of a trunk in bark. This dependence takes into account the impact on the yield of timber qualitative categories (not only diameter but also other biometric indicators of the trunk). Data on the dimensional structure of industrial timber were summarized according to a method based on the study of patterns of distribution of the volume by dimensional classes in relative terms. According to the results of the analysis, a close dependence of the relative indicators of trunk timber dimensional structure by DBH was revealed. On the basis of the developed mathematical models the tables of distribution of volume of industrial timber of merchantable oak trunks on dimensional classes of average diameter without bark are made. According to the research results the average ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | Ukrainian |
| Relation: | http://fasu.nltu.edu.ua/index.php/nplanu/article/view/654/539; http://fasu.nltu.edu.ua/index.php/nplanu/article/view/654 |
| DOI: | 10.15421/412114 |
| الاتاحة: | http://fasu.nltu.edu.ua/index.php/nplanu/article/view/654 https://doi.org/10.15421/412114 |
| رقم الانضمام: | edsbas.1EE03E89 |
| قاعدة البيانات: | BASE |
| DOI: | 10.15421/412114 |
|---|