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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Lesnoy Vestnik / Forestry Bulletin</journal-id><journal-title-group><journal-title xml:lang="en">Lesnoy Vestnik / Forestry Bulletin</journal-title><trans-title-group xml:lang="ru"><trans-title>Лесной вестник / Forestry Bulletin</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2542-1468</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">706738</article-id><article-id pub-id-type="doi">10.18698/2542-1468-2024-2-27-33</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Biological and technological aspects of forestry</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Биологические и технологические аспекты лесного хозяйства</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Calorific value of aerial phytomass fractions of scots pine in north taiga forest region</article-title><trans-title-group xml:lang="ru"><trans-title>Теплотворная способность фракций надземной фитомассы культур сосны обыкновенной в условиях северо-таежного лесного района</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tyukavina</surname><given-names>Ol’ga N.</given-names></name><name xml:lang="ru"><surname>Тюкавина</surname><given-names>Ольга Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Agriculture), Associate Professor</p></bio><bio xml:lang="ru"><p>д-р. с.-х. наук, доцент кафедры биологии, экологии и биотехнологии Высшей школы естественных наук и технологий</p></bio><email>o.tukavina@narfu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Klevtsov</surname><given-names>Denis N.</given-names></name><name xml:lang="ru"><surname>Клевцов</surname><given-names>Денис Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Agriculture), Associate Professor</p></bio><bio xml:lang="ru"><p>канд. с.-х. наук, доцент кафедры биологии, экологии и биотехнологии Высшей школы естественных наук и технологий</p></bio><email>d.klevtsov@narfu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Melekhov</surname><given-names>V. I.</given-names></name><name xml:lang="ru"><surname>Мелехов</surname><given-names>В. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Tech.), Professor of the Department of Logging Production and Materials Processing of the Higher School of Engineering</p></bio><email>o.tukavina@narfu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Neverov</surname><given-names>Nikolay A.</given-names></name><name xml:lang="ru"><surname>Неверов</surname><given-names>Николай Александрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Agriculture), Senior researcher of Laboratory of the Deep Geological Structure and Dynamics of the Lithosphere of the Institute of Geodynamics and Geology </p></bio><bio xml:lang="ru"><p>канд. с.-х. наук, ст. науч. сотр. лаборатории глубинного геологического строения и динамики литосферы Института геодинамики и геологии</p></bio><email>na-neverov@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Northern (Arctic) Federal University named after M.V. Lomonosov</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Северный (Арктический) федеральный университет имени М.В. Ломоносова» (САФУ)</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">ФГБУН «Федеральный исследовательский центр комплексного изучения Арктики им. Н.П. Лаверова УрО РАН, Институт геодинамики и геологии»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-04-15" publication-format="electronic"><day>15</day><month>04</month><year>2024</year></pub-date><volume>28</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>27</fpage><lpage>33</lpage><history><date date-type="received" iso-8601-date="2026-04-24"><day>24</day><month>04</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Tyukavina O.N., Klevtsov D.N., Melekhov V.I., Neverov N.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Тюкавина О.Н., Клевцов Д.Н., Мелехов В.И., Неверов Н.А.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Tyukavina O.N., Klevtsov D.N., Melekhov V.I., Neverov N.A.</copyright-holder><copyright-holder xml:lang="ru">Тюкавина О.Н., Клевцов Д.Н., Мелехов В.И., Неверов Н.А.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.eco-vector.com/2542-1468/article/view/706738">https://journals.eco-vector.com/2542-1468/article/view/706738</self-uri><abstract xml:lang="en"><p>The estimation results of calorific value fractions of aerial phytomass of 76-year-old pine species in lichen, lingonberry and bilberry types forest conditions of the northern taiga region are presented. The calorific value of wood, bark, foliage, branches, dry twigs in absolutely dry state was determined with automated bomb calorimeter ABK-1V. Not any significant influence of forest type on the calorific value of pine ground phytomass fractions was established. The correlation dependence of calorific value of the following parts of pine was revealed: wood — on the average stand height, number of needles per branch, diameter of resin channel in the needles, bark — on the length and surface area of the needles, woody greenery — on the diameter of resin channels in the needles, area of the vascular bundle in the cross section of the needles, branches — from the width and proportion of late wood in the annual layer, area of the vascular bundle, central cylinder and mesophyll in the cross-section of needles, dry twigs — from the area of the vascular bundle, central cylinder in the cross-section of needles. It is recommended to use the obtained parameters of calorific value of pine aerial phytomass fractions as qualitative characteristics of planting materials.</p></abstract><trans-abstract xml:lang="ru"><p>Приведены результаты оценки теплотворной способности фракций наземной фитомассы культур сосны 76-летнего возраста в лишайниковом, брусничном и черничном типах условий местопроизрастания северо-таежного лесного района. Определена теплотворная способность древесины, коры, древесной зелени, ветвей, сухих сучьев в абсолютно сухом состоянии с помощью автоматизированного бомбового калориметра АБК-1В. Установлено отсутствие значимого влияния типа леса на теплотворную способность фракций наземной фитомассы сосны. Выявлена корреляционная зависимость теплотворной способности следующих частей сосны: древесины — от средней высоты древостоя, количества хвои на ветви, диаметра смоляных ходов в хвое, коры — от длины и площади поверхности хвоинки, древесной зелени — от диаметра смоляных ходов в хвоинке, площади проводящего пучка в поперечном сечении хвоинки, ветвей — от ширины и доли поздней древесины в годичном слое, площади проводящего пучка, центрального цилиндра и мезофилла в поперечном сечении хвоинки, сухих сучьев — от площади проводящего пучка, центрального цилиндра в поперечном сечении хвоинки. Рекомендуется использовать полученные параметры теплотворной способности фракций надземной фитомассы сосны как качественные характеристики растительного сырья.</p></trans-abstract><kwd-group xml:lang="en"><kwd>pine</kwd><kwd>calorific value</kwd><kwd>wood</kwd><kwd>bark</kwd><kwd>foliage</kwd><kwd>branches</kwd><kwd>dry twigs</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>сосна</kwd><kwd>теплотворная способность</kwd><kwd>древесина</kwd><kwd>кора</kwd><kwd>древесная зелень</kwd><kwd>ветви</kwd><kwd>сухие сучья</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Kunitskaya O.A., Pomiguev A.V., Burmistrova D.D., Tikhonov E.A., Storodubtseva T.N. Rezultaty eksperimental’nykh vyderzhek briketirovaniya lesosechnykh otkhodov v usloviyakh lesnykh terminalov [Results of experimental tests for briquetting logging waste in forest terminals]. 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