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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">706918</article-id><article-id pub-id-type="doi">10.18698/2542-1468-2024-3-57-66</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">Forestry crops assessment by using unmanned aerial vehicle</article-title><trans-title-group xml:lang="ru"><trans-title>Оценка состояния лесных культур с использованием беспилотного летательного аппарата</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kabonen</surname><given-names>Aleksey V.</given-names></name><name xml:lang="ru"><surname>Кабонен</surname><given-names>Алексей Валерьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Director of the Center for Digital Monitoring of Northern and Arctic Ecosystems</p></bio><bio xml:lang="ru"><p>директор Центра цифрового мониторинга северных и арктических экосистем</p></bio><email>alexkabonen@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gryaz’kin</surname><given-names>Anatoliy V.</given-names></name><name xml:lang="ru"><surname>Грязькин</surname><given-names>Анатолий Васильевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Biology), Professor of the Department of Forestry</p></bio><bio xml:lang="ru"><p>д-р биол. наук, профессор кафедры лесоводства</p></bio><email>alexkabonen@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gavrilova</surname><given-names>Ol’ga I.</given-names></name><name xml:lang="ru"><surname>Гаврилова</surname><given-names>Ольга Ивановна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Agriculture), Professor of the Department of Technology and Organization of the Forestry Complex</p></bio><bio xml:lang="ru"><p>д-р с.-х. наук, профессор кафедры технологии и организации лесного комплекса</p></bio><email>alexkabonen@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Petrozavodsk State University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Петрозаводский государственный университет»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">St. Petersburg State Forest Engineering University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Санкт-Петербургский государственный лесотехнический университет»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-06-29" publication-format="electronic"><day>29</day><month>06</month><year>2024</year></pub-date><volume>28</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>57</fpage><lpage>66</lpage><history><date date-type="received" iso-8601-date="2026-04-28"><day>28</day><month>04</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-04-28"><day>28</day><month>04</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Kabonen A.V., Gryaz’kin A.V., Gavrilova O.I.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Кабонен А.В., Грязькин А.В., Гаврилова О.И.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Kabonen A.V., Gryaz’kin A.V., Gavrilova O.I.</copyright-holder><copyright-holder xml:lang="ru">Кабонен А.В., Грязькин А.В., Гаврилова О.И.</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/706918">https://journals.eco-vector.com/2542-1468/article/view/706918</self-uri><abstract xml:lang="en"><p>Data on the growth and development of 23-year-old forest crops created by sowing and planting seedlings with a root-balled tree system on the territory of the Karelia Republic are presented. Using photogrammetric processing of data from an unmanned aerial vehicle (DJI Mavic Mini 2), an image plan of forestry crops was constructed and the quantitative distribution of tree species was determined. It was established that in all experimental areas, young stands with a predominance of Scots pine had been formed. It is shown that the use of algorithms for automated search for trees in dense point clouds makes it possible to detect 91 % of trees from the total mass of the point cloud and determine their height. The main identified characteristics of forest stands, determined using UAVs and the ground technique, differed within the limits of measurement accuracy.</p></abstract><trans-abstract xml:lang="ru"><p>Представлены данные о росте и развитии 23-летних лесных культур, созданных посевом и посадкой саженцев с закрытой корневой системой на территории Республики Карелия. Посредством фотограмметрической обработки данных с беспилотного летательного аппарата (DJI Mavic Mini 2) построен ортофотоплан лесных культур и определено количественное распределение древесных пород. Установлено, что на всех опытных участках сформировались молодняки с преобладанием сосны обыкновенной. Показано, что использование алгоритмов автоматизированного поиска деревьев по плотным облакам точек позволяет детектировать 91 % деревьев из общей массы облака точек и определять их высоты. Основные выявленные характеристики древостоев, определяемые с помощью БПЛА и наземным методом, различались в пределах точности измерений.</p></trans-abstract><kwd-group xml:lang="en"><kwd>forestry crops</kwd><kwd>growth and development</kwd><kwd>unmanned aerial vehicle</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>лесные культуры</kwd><kwd>рост и развитие</kwd><kwd>беспилотный летательный аппарат</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Министерство науки и высшего образования Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Ministry of Science and Higher Education of the Russian Federation</institution></institution-wrap></funding-source><award-id>075-03-2023-128</award-id></award-group><funding-statement xml:lang="en">The work was carried out under the state assignment of the Ministry of Science and Higher Education of the Russian Federation (project No. 075-03-2023-128).</funding-statement><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Министерства науки и высшего образования Российской Федерации (тема № 075-03-2023-128).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Sokolov A.I. 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