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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">RUDN Journal of Ecology and Life Safety</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Ecology and Life Safety</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Экология и безопасность жизнедеятельности</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-2310</issn><issn publication-format="electronic">2408-8919</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">35398</article-id><article-id pub-id-type="doi">10.22363/2313-2310-2023-31-2-169-178</article-id><article-id pub-id-type="edn">ORFJNM</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Ecology</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экология</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">Air temperature changes due to altitude above sea level in the Northern Ural Mountains</article-title><trans-title-group xml:lang="ru"><trans-title>Изменения температуры воздуха в зависимости от высоты над уровнем моря в горах Северного Урала</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1904-4751</contrib-id><contrib-id contrib-id-type="scopus">23995967800</contrib-id><contrib-id contrib-id-type="researcherid">AAW-6195-2021</contrib-id><name-alternatives><name xml:lang="en"><surname>Tantsyrev</surname><given-names>Nikolai V.</given-names></name><name xml:lang="ru"><surname>Танцырев</surname><given-names>Николай Владимирович</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Biological Science, Researcher of Laboratory of Population Biology of Woody Plants and Forest Dynamics</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, научный сотрудник</p></bio><email>89502076608@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0845-9433</contrib-id><contrib-id contrib-id-type="scopus">56443439900</contrib-id><contrib-id contrib-id-type="researcherid">Q-3292-2017</contrib-id><name-alternatives><name xml:lang="en"><surname>Ivanova</surname><given-names>Natalya S.</given-names></name><name xml:lang="ru"><surname>Иванова</surname><given-names>Наталья Сергеевна</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Biological Sciences, Leading Researcher</p></bio><bio xml:lang="ru"><p>доктор биологических наук, ведущий научный сотрудник</p></bio><email>i.n.s@bk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5689-8452</contrib-id><contrib-id contrib-id-type="scopus">55935284300</contrib-id><contrib-id contrib-id-type="researcherid">N-6695-2018</contrib-id><name-alternatives><name xml:lang="en"><surname>Petrova</surname><given-names>Irina V.</given-names></name><name xml:lang="ru"><surname>Петрова</surname><given-names>Ирина Владимировна</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Biological Sciences, Director</p></bio><bio xml:lang="ru"><p>доктор биологических наук, директор</p></bio><email>irina.petrova@botgard.uran.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute Botanic Garden Ural Branch of Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Ботанический сад УрО РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-07-15" publication-format="electronic"><day>15</day><month>07</month><year>2023</year></pub-date><volume>31</volume><issue>2</issue><issue-title xml:lang="en">VOL 31, NO2 (2023)</issue-title><issue-title xml:lang="ru">ТОМ 31, №2 (2023)</issue-title><fpage>169</fpage><lpage>178</lpage><history><date date-type="received" iso-8601-date="2023-07-17"><day>17</day><month>07</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Tantsyrev N.V., Ivanova N.S., Petrova I.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Танцырев Н.В., Иванова Н.С., Петрова И.В.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Tantsyrev N.V., Ivanova N.S., Petrova I.V.</copyright-holder><copyright-holder xml:lang="ru">Танцырев Н.В., Иванова Н.С., Петрова И.В.</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-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/ecology/article/view/35398">https://journals.rudn.ru/ecology/article/view/35398</self-uri><abstract xml:lang="en"><p style="text-align: justify;">The research is devoted to an urgent modern problem: the identification of temperature factors that limit the distribution and survival of plants in the mountainous conditions of the Northern Urals. The article’s aim is to determine the air temperature in four altitudinal zones of the southern part of the Northern Urals (Sverdlovsk region 59º30´N, 59º15´E) and to identify regression relationships of the obtained temperature data with control temperature data from the nearest meteorological station. Registration of air temperatures was carried out from May to September 2019 around the clock, every two hours in the mountain forest zone (at an altitude of 460 and 640 m above sea level) under the canopy of Siberian stone pine forests, in the zone of subalpine woodlands with elements of mountain forest tundra (820 m above sea level) and on a plateau in the mountain tundra zone (1030 m above sea level). It has been established that the change in air temperature at different altitude levels and at the nearest meteorological station (far from 60 km, at an altitude of 202 m above sea level) occurs relatively synchronously. Difference between average daily temperatures at altitudes of 460, 640, 820 and 1030 m above sea level and the control data of the meteorological station is 2.2, 3.0, 4.7 and 5.1ºC respectively. For all altitude levels, a reliable close straight-line relationship between average daily air temperatures and meteorological station data has been established. The altitudes of 460, 640, 820 and 1030 m above sea level correspond to the coefficients of determination ( R 2) equal to 0.96, 0.95, 0.92 and 0.88. The relationship of the minimum temperatures of the corresponding altitude levels with the control data is also quite high ( R 2 is not lower than 0.7). With the help of the identified relationships and the obtained regression equations, it is possible to retrospectively restore the dynamics of the thermal regime according to the meteorological station data for mountain habitats of different altitudes in the southern part of the Northern Urals over a long period. Including extreme critical temperatures, which act as factors limiting the resettlement and survival of plants and determine the ecosystem biodiversity.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Исследование посвящено актуальной проблеме - выявлению температурных факторов, лимитирующих распространение и выживаемость растений в горных условиях Северного Урала. Цель - определение температуры воздуха в четырех высотных поясах южной части Северного Урала (Свердловская область 59º30´ с.ш., 59º15´ в.д.) и выявление регрессионных связей, полученных температурных данных с контрольными данными ближайшей метеостанции. Регистрация температур воздуха проводилась с мая по сентябрь 2019 г. круглосуточно, через каждые два часа в горно-лесной зоне (на высоте 460 и 640 м над уровнем моря) под пологом кедровых лесов, в зоне подгольцовых редколесий с элементами горной лесотундры (820 м над ур. м.) и на плато в зоне горной тундры (1030 м над ур. м.). Установлено, что изменение температуры воздуха на разных высотных уровнях и на ближайшей метеостанции (на расстоянии 60 км, на высоте 202 м над ур. м.) происходит относительно синхронно. Разность среднесуточных температур на высотах 460, 640, 820 и 1030 м над уровнем моря от контрольных данных метеостанции составляет 2,2, 3,0, 4,7 и 5,1 ºС соответственно. Для всех высотных уровней установлена достоверная тесная прямолинейная связь между среднесуточной температурой воздуха и данными метеостанции. Для высот 460, 640, 820 и 1030 м над уровнем моря соответствуют коэффициенты детерминации (R2), равные 0,96, 0,95, 0,92 и 0,88. Связь минимальных температур с контрольными данными на соответствующих высотах также достаточно высока (R2 не ниже 0,7). С помощью выявленных связей и полученных уравнений регрессии появляется возможность ретроспективного восстановления динамики термического режима по данным метеостанций для разных горных высот в южной части Северного Урала за длительный период. В том числе экстремально критические температуры, которые выступают факторами, ограничивающими расселение и выживание растений и определяющими биоразнообразие экосистем.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Northern Urals</kwd><kwd>mountain ecosystems</kwd><kwd>altitude zones</kwd><kwd>air temperature</kwd><kwd>plant communities</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Северный Урал</kwd><kwd>горные экосистемы</kwd><kwd>высотные пояса</kwd><kwd>температура воздуха</kwd><kwd>растительные сообщества</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The work was carried out within the framework  of the state assignment of the Institute Botanic Garden Ural Branch of Russian Academy  of Sciences.</funding-statement><funding-statement xml:lang="ru">Работа была выполнена в рамках государственного задания Института Ботанического сада Уральского отделения Российской академии наук.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Pătru-Stupariu I, Hossu CA, Grădinaru SR, Nita A, Stupariu M-S, Huzui-Stoiculescu A, Gavrilidis A-A. 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