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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">Bulletin of the RAS. Geography</journal-id><journal-title-group><journal-title xml:lang="en">Bulletin of the RAS. Geography</journal-title><trans-title-group xml:lang="ru"><trans-title>Известия РАН. Серия географическая</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2587-5566</issn><issn publication-format="electronic">2658-6975</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">692236</article-id><article-id pub-id-type="doi">10.31857/S2587556625020118</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>РЕГИОНАЛЬНЫЕ ГЕОГРАФИЧЕСКИЕ ПРОБЛЕМЫ</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">Spatial and temporal variability of methane emissions in the oligotrophic ridge-hollow complex of Western Siberia</article-title><trans-title-group xml:lang="ru"><trans-title>Пространственно-временная изменчивость эмиссии метана в олиготрофных грядово-мочажинных комплексах Западной Сибири</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Veretennikova</surname><given-names>E. E.</given-names></name><name xml:lang="ru"><surname>Веретенникова</surname><given-names>Е. Э.</given-names></name></name-alternatives><email>lena2701@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dyukarev</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Дюкарев</surname><given-names>Е. А.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute for Monitoring of Climatic and Ecological Systems SB RAS</institution></aff><aff><institution xml:lang="ru">Институт мониторинга климатических и экологических систем СО РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Siberian State Medical University</institution></aff><aff><institution xml:lang="ru">Сибирский государственный медицинский университет</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Yugra State University</institution></aff><aff><institution xml:lang="ru">Югорский государственный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-04-15" publication-format="electronic"><day>15</day><month>04</month><year>2025</year></pub-date><volume>89</volume><issue>2</issue><issue-title xml:lang="en">VOL 89, NO2 (2025)</issue-title><issue-title xml:lang="ru">ТОМ 89, №2 (2025)</issue-title><fpage>297</fpage><lpage>312</lpage><history><date date-type="received" iso-8601-date="2025-10-07"><day>07</day><month>10</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2026-04-15"/></permissions><self-uri xlink:href="https://journals.eco-vector.com/2587-5566/article/view/692236">https://journals.eco-vector.com/2587-5566/article/view/692236</self-uri><abstract xml:lang="en"><p>In the summer-autumn seasons (during for three years) using the static chamber method the СН4 emission from the surface of one of the most common types of bog ecosystems in the taiga zone of Western Siberia—the ridge-hollow complex (RHC) was studied. A very significant spatial variability of CH4 fluxes (from 60 to 74% in July and from 20 to 50% in September) was observed between the elements of the RHC: ridge and hollow. The temporal variability plays an equally important role and is a response to changes in the temperature of the peat deposits. At the hollow, a diurnal cycle of CH4 was detected, which which is explained 34–64% by the variability of the peat deposit temperature at a depth of 2 to 15 cm. At the ridge, no diurnal cycle was found on the however, CH4 fluxes during the summer-autumn period are 46% explained by the temperature at depths of 30 and 40 cm. The paper also discusses possible reasons for the spatial and temporal variability of CH4 fluxes from the surface of the RHC.</p></abstract><trans-abstract xml:lang="ru"><p>В течение трех лет при помощи статического камерного метода была изучена эмиссия метана с поверхности одного из самых распространенных типов болотных ландшафтов таежной зоны Западной Сибири — грядово-мочажинного комплекса (ГМК). Обнаружена значительная пространственная изменчивость потоков СН4 между элементами ГМК — грядой и мочажиной (от 60 до 74% в июле и от 20 до 50% в сентябре). Временная изменчивость играет не менее важную роль и является откликом на изменение температуры торфяных залежей. На мочажине обнаружена изменчивость суточного цикла метана, которая на 34–64% объясняется изменчивостью температуры торфяной залежи на глубине от 2 до 15 см. На гряде ГМК суточного цикла не обнаружено, однако изменчивость потоков метана в течение летне-осеннего периода на 46% объясняется температурой на глубине 30 и 40 см. В работе обсуждаются возможные причины пространственно-временной изменчивости СН4 с поверхности элементов ГМК. Результаты пространственно-временного анализа показали, что не дифференцированный разовый отбор пробы и последующая экстраполяция этого результата на сутки и сезон может дать завышенную оценку, если не учитывать влияние текущей температуры, а также положения в микрорельефе и характера растительности, что в конечном итоге может привести как к переоценке, так и к недооценке эмиссии СН4.</p></trans-abstract><kwd-group xml:lang="en"><kwd>methane</kwd><kwd>peatlands</kwd><kwd>temperature</kwd><kwd>peat deposit</kwd><kwd>diurnal cycle</kwd><kwd>variability</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>метан</kwd><kwd>болотные комплексы</kwd><kwd>температура</kwd><kwd>торфяная залежь</kwd><kwd>суточный цикл</kwd><kwd>температура</kwd><kwd>изменчивость</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке госбюджетного проекта № 121031300154-1.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Дюкарев Е.А., Алексеева М.Н., Головацкая Е.А. 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