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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">10.53374/1993-0135-2023-3-243-247</article-id><article-id custom-type="elpub" pub-id-type="custom">hbz-205</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>Обоснование использования зимней температуры при прогнозировании климатически обусловленных изменений биомассы лесов Евразии</article-title><trans-title-group xml:lang="en"><trans-title>Rationale of the winter temperature use in forecasting climate-related changes in the biomass of eurasian forests</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4747-5017</contrib-id><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>620100, г. Екатеринбург, Сибирский тракт, 37</p></bio><bio xml:lang="en"><p>37, Siberian tract, Yekaterinburg, 620100</p></bio><email xlink:type="simple">ivan.tsepordey@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4587-8952</contrib-id><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, г. Екатеринбург, Сибирский тракт, 37</p><p>620144, г. 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><email xlink:type="simple">Usoltsev50@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1484-6384</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Норицин</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Noritsin</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Екатеринбург, ул. Гоголя, 44</p></bio><bio xml:lang="en"><p>44, Gogol Str., Yekaterinburg</p></bio><email xlink:type="simple">norritsin@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский государственный лесотехнический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural State Forest Engineering University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><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 Ural Branch of RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ПАО «Сбербанк», Центр компетенций аналитики</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Sberbank PJSC, Analytics Competence Center</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>09</day><month>02</month><year>2025</year></pub-date><volume>41</volume><issue>3</issue><fpage>243</fpage><lpage>247</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Цепордей И.С., Усольцев В.А., Норицин Д.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Цепордей И.С., Усольцев В.А., Норицин Д.В.</copyright-holder><copyright-holder xml:lang="en">Tsepordey I.S., Usoltsev V.A., Noritsin D.V.</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/205">https://hbz.elpub.ru/jour/article/view/205</self-uri><abstract><p>Понимание последствий изменения климата для роста деревьев необходимо для прогнозирования динамики лесов в будущих сценариях изменения климата. В этой связи возрастает роль эмпирических моделей, адекватно описывающих изменчивость биологической продуктивности лесов и позволяющих прогнозировать ее изменение под влиянием климатических сдвигов. В имеющихся публикациях вклад климатических переменных в объяснение изменчивости биомассы оказывается либо несущественным, либо нулевым, главным образом, вследствие регионального уровня моделей. Наше ранее выполненное на уровне Евразии моделирование биомассы деревьев и древостоев показало наличие статистически значимого вклада зимней температуры и среднегодовых осадков в объяснение изменчивости показателей биомассы. Однако в дальнейшем под вопрос была поставлена правомерность использования в прогностических моделях зимней температуры вместо летней. Цель настоящего исследования состояла в анализе взаимосвязи температур разных месяцев на территории Евразии и их изменения в широтном градиенте от тропиков до лесотундр с целью выявления месяца, средняя температура которого была бы статистически значимой в моделях биомассы. Для выполнения поставленной цели использована база климатических данных WorldClim версии 2.1 за 1970–2000 годы (https://worldclim.org/data/index.html). Установлено, что средняя летняя температура обеспечивает слабый территориально распределенный климатический сигнал, не способный к вычленению из общей дисперсии факторов, определяющих биомассу деревьев и древостоев. Напротив, средняя температура января представляет достаточно сильный территориально распределенный климатический сигнал благодаря высокому отношению общей дисперсии (или перепада температур) к остаточной, что обеспечило статистическую значимость выявленного ранее влияния зимних температур на биомассу деревьев и древостоев лесообразующих родов Евразии [<xref ref-type="bibr" rid="cit4">4</xref>]. Среднегодовая температура, характеризуемая высокой корреляцией с январской температурой, может оказаться статистически значимой при объяснении изменчивости биомассы деревьев и древостоев Евразии. Выявление данной предпосылки составит предмет наших дальнейших исследований.</p></abstract><trans-abstract xml:lang="en"><p>Understanding the effects of climate change on tree growth is necessary to predict forest dynamics in future climate change scenarios. In this regard, the role of empirical models that adequately describe the variability of biological productivity of forests and allow predicting its change under the influence of climatic shifts is increasing. In the available publications, the contribution of climate variables to the explanation of biomass variability is either insignificant or zero, mainly due to the regional level of models. The modeling of the biomass of trees and stands performed at the Eurasian level showed the presence of a statistically significant contribution of winter temperature and average annual precipitation to the explanation of the variability of biomass indicators. However, the validity of using winter temperature instead of summer one in predictive models was questioned. The purpose of this work was to study the relationship of temperatures of different months in Eurasia and their changes in the latitudinal gradient from the tropics to the forest tundra in order to identify the month whose average temperature would be statistically significant in biomass models. To achieve this goal, the WorldClim version 2.1 climate database for the years 1970-2000 was used (https://worldclim.org/data/index.html). It is established that the average summer temperature provides a weak geographically distributed climatic signal, which is not capable of being extracted from the general dispersion of factors determining the biomass of trees and stands. On the contrary, the average January temperature represents a sufficiently strong geographically distributed climatic signal due to the high ratio of the total variance (or temperature range) to the residual one, which provided the statistical significance of the previously identified influence of winter temperatures on the biomass of trees and stands of forest-forming genera of Eurasia [<xref ref-type="bibr" rid="cit4">4</xref>]. The average annual temperature, characterized by a high correlation with the January temperature, may be statistically significant in explaining the variability of biomass of trees and stands of Eurasia. The identification of this premise will be a subject of our further research.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>прогнозирование биомассы лесов</kwd><kwd>климатические сигналы</kwd><kwd>средняя температура января и июля</kwd><kwd>среднегодовая температура</kwd></kwd-group><kwd-group xml:lang="en"><kwd>forest biomass forecasting</kwd><kwd>climate signals</kwd><kwd>average temperature in January and July</kwd><kwd>average annual temperature</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">Голубятников Л. Л., Денисенко Е. А. Влияние климатических изменений на растительный покров европейской России // Известия РАН. Серия географическая. 2009. № 2. С. 57–68.</mixed-citation><mixed-citation xml:lang="en">Golubyatnikov L. L., Denisenko E. A. Vliyanie klimaticheskikh izmenenij na rastitel’nyj pokrov evropejskoj Rossii // Izvestiya RAN. 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