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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">hbz</journal-id><journal-title-group><journal-title xml:lang="ru">Хвойные бореальной зоны</journal-title><trans-title-group xml:lang="en"><trans-title>Conifers of the boreal area</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1993-0135</issn><publisher><publisher-name>СибГУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.53374/1993-0135-2023-1-56-64</article-id><article-id custom-type="elpub" pub-id-type="custom">hbz-60</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>БИОЛОГИЯ И ЭКОЛОГИЯ, ЛЕСНОЕ ХОЗЯЙСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOLOGY AND ECOLOGY, FORESTRY</subject></subj-group></article-categories><title-group><article-title>Аллометрические модели и таблицы для оценки биомассы отмерших ветвей растущих деревьев дистанционными методами</article-title><trans-title-group xml:lang="en"><trans-title>Allometric models and tables for estimating the biomass of dead branches of growing trees by remote sensing</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Усольцев</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Usoltsev</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>620100, Екатеринбург, Сибирский тракт, 37 </p><p>620144, Екатеринбург, ул. 8 Марта, 202а </p></bio><bio xml:lang="en"><p>37, Siberian tract, Yekaterinburg, 620100 </p><p>202a, 8 Marta Str., Yekaterinburg, 620144 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Цепордей</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsepordey</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>620144, Екатеринбург, ул. 8 Марта, 202а </p></bio><bio xml:lang="en"><p>202a, 8 Marta Str., Yekaterinburg, 620144 </p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский государственный лесотехнический университет ; Ботанический сад УрО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural State Forest Engineering University ; Botanical Garden of the Ural Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Ботанический сад УрО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Botanical Garden of the Ural Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>07</day><month>02</month><year>2025</year></pub-date><volume>41</volume><issue>1</issue><fpage>56</fpage><lpage>64</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Усольцев В.А., Цепордей И.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Усольцев В.А., Цепордей И.С.</copyright-holder><copyright-holder xml:lang="en">Usoltsev V.A., Tsepordey I.S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://hbz.elpub.ru/jour/article/view/60">https://hbz.elpub.ru/jour/article/view/60</self-uri><abstract><p>В условиях изменяющегося климата возросла актуальность оценки полного углеродного бюджета лесных экосистем и углеродного пула всех их компонентов, в том числе отмерших ветвей растущих деревьев. В опубликованных данных о биомассе деревьев доля отмерших ветвей в надземной биомассе варьирует в диапазоне от 1 до 22 %, однако попытки выявить факторы, объясняющие столь широкий ее диапазон, довольно редки. В настоящем исследовании предпринята первая попытка разработки аллометрических моделей, предназначенных для оценки массы отмерших ветвей (МОВ) растущих деревьев сосны обыкновенной по измеренным диаметру кроны и высоте деревьев естественных древостоев и культур в условиях степной зоны. Основу исследования составили 357 модельных деревьев, полученные на 40 пробных площадях. Аллометрическая модель МОВ, включающая такие независимые переменные, как диаметр кроны, высота дерева и происхождение древостоя, объясняет 84 % изменчивости МОВ на уровне p &lt; 0,001. Величина МОВ у крупных деревьев может достигать 15–20 кг, при этом в культурах показатель вдвое выше, чем в естественных древостоях. В процентном выражении величина МОВ по отношению к надземной биомассе по мере увеличения размеров дерева возрастает в естественных древостоях от 2 до 6 % и в культурах от 3,5 до 11 %, и в среднем для естественных древостоев и культур составляет 5–6 %. Вклады диаметра кроны, высоты дерева и происхождения древостоя в объяснение изменчивости МОВ составили соответственно 19, 62 и 19 %. При включении надземной биомассы в модель МОВ в качестве дополнительной независимой переменной вклады диаметра кроны, высоты дерева, надземной биомассы и происхождения древостоя в объяснение изменчивости МОВ составили соответственно 18, 33, 17 и 32 %. Предложенные аллометрические модели могут быть использованы при оценках МОВ сосны обыкновенной на основе воздушного и наземного лазерного зондирования. При расчетах углеродных пулов в сосновых лесах степной зоны необходимо вносить в оценку пула поправку в виде 5–6%-ного повышения на величину МОВ.</p></abstract><trans-abstract xml:lang="en"><p>In a changing climate, the relevance of assessing the full carbon budget of forest ecosystems and the carbon pool of all their components, including dead branches of growing trees, has increased. In the published data on the biomass of trees, the proportion of dead branches in the aboveground biomass varies from 1 to 22 %, but attempts to identify factors explaining such a wide range of it are quite rare. In this study, the first attempt was made to develop allometric models designed to estimate the mass of dead branches (MDB) of growing pine trees by the measured crown diameter and height of trees of natural stands and plantations in the conditions of the steppe zone. The basis of the study was 357 model trees obtained on 40 sample plots. The allometric model of the MDB, which includes such independent variables as crown diameter, tree height and the origin of the stand, explains 84 % of the variability of the MDB at the level of p &lt; 0.001. The value of the MDB in large trees can reach 15–20 kg, while in plantations this value is twice as high as in natural stands. In percentage terms, the value of MDB in relation to aboveground biomass increases with increasing tree size in natural stands from 2 to 6 % and in plantations from 3.5 to 11 %, and on average for natural stands and plantations is 5–6 %. The contributions of crown diameter, tree height and the origin of the stand to explain the variability of the MDB were 19, 62 and 19 %, respectively. When aboveground biomass was included in the MDB model as an additional independent variable, the contributions of crown diameter, tree height, aboveground biomass and the origin of the stand to explain the variability of the MDB were 18, 33, 17 and 32 %, respectively. The proposed allometric models can be used in estimating the MDB of Scots pine based on аirborne or terrestrial laser sensing. When calculating carbon pools in Scots pine forests of the steppe zone, it is necessary to make an amendment to the pool estimate in the form of a 5–6 % increase by the value of the MDB.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Pinus sylvestris L.</kwd><kwd>степная зона</kwd><kwd>биомасса отмерших ветвей</kwd><kwd>лазерное зондирование деревьев</kwd><kwd>аллометрические модели</kwd><kwd>поправка в углеродный пул</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Pinus sylvestris L.</kwd><kwd>steppe zone</kwd><kwd>biomass of dead branches</kwd><kwd>tree laser sensing</kwd><kwd>allometric models</kwd><kwd>correction to the carbon pool</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Бабич Н. А., Мерзленко М. Д., Евдокимов И. В. 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