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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">esoil</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень Почвенного института имени В.В. Докучаева</journal-title><trans-title-group xml:lang="en"><trans-title>Dokuchaev Soil Bulletin</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0136-1694</issn><issn pub-type="epub">2312-4202</issn><publisher><publisher-name>V.V. Dokuchaev Soil Science Institute</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.19047/0136-1694-2025-125-214-243</article-id><article-id custom-type="elpub" pub-id-type="custom">esoil-923</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Содержание и состав органического вещества почв архипелага Новая Земля</article-title><trans-title-group xml:lang="en"><trans-title>Content and composition of organic matter in soils of the Novaya Zemlya archipelago</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9781-9351</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Артемьева</surname><given-names>З. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Artemyeva</surname><given-names>Z. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Артемьева Зинаида Семеновна.</p><p>119017, Москва, Пыжевский пер, 7, стр. 2</p></bio><bio xml:lang="en"><p>7 Bld. 2 Pyzhevskiy per., Moscow 119017</p></bio><email xlink:type="simple">artemyevazs@mail.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/0000-0002-0565-2812</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Когут</surname><given-names>Б. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kogut</surname><given-names>B. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Когут Борис Маратович.</p><p>119017, Москва, Пыжевский пер, 7, стр. 2</p></bio><bio xml:lang="en"><p>7 Bld. 2 Pyzhevskiy per., Moscow 119017</p></bio><email xlink:type="simple">kogutb@mail.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/0000-0001-8934-8705</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Цомаева</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsomaeva</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Цомаева Елизавета Викторовна.</p><p>119017, Москва, Пыжевский пер, 7, стр. 2</p></bio><bio xml:lang="en"><p>7 Bld. 2 Pyzhevskiy per., Moscow 119017</p></bio><email xlink:type="simple">liza1999.01@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Засухина</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zasukhina</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Засухина Елена Семеновна.</p><p>119333, Москва, ул. Вавилова, 44, корп. 2</p></bio><bio xml:lang="en"><p>2 Bld. 44 Vavilova Str., Moscow 119333</p></bio><email xlink:type="simple">elenzet@bk.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/0000-0002-5805-4285</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ярославцева</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Yaroslavtseva</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ярославцева Надежда Васильевна</p><p>119017, Москва, Пыжевский пер, 7, стр. 2</p></bio><bio xml:lang="en"><p>7 Bld. 2 Pyzhevskiy per., Moscow 119017</p></bio><email xlink:type="simple">nadezhdayros@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8533-6536</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитин</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitin</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никитин Дмитрий А.</p><p>119017, Москва, Пыжевский пер, 7, стр. 2</p></bio><bio xml:lang="en"><p>7 Bld. 2 Pyzhevskiy per., Moscow 119017</p></bio><email xlink:type="simple">dimnik90@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФИЦ “Почвенный институт им. В.В. Докучаева”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Centre “V.V. Dokuchaev Soil Science Institute”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральный исследовательский центр “Информатика и управление” РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Center “Computer Science and Control “RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>09</day><month>11</month><year>2025</year></pub-date><volume>0</volume><issue>125</issue><fpage>214</fpage><lpage>243</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Артемьева З.С., Когут Б.М., Цомаева Е.В., Засухина Е.С., Ярославцева Н.В., Никитин Д.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Артемьева З.С., Когут Б.М., Цомаева Е.В., Засухина Е.С., Ярославцева Н.В., Никитин Д.А.</copyright-holder><copyright-holder xml:lang="en">Artemyeva Z.S., Kogut B.M., Tsomaeva E.V., Zasukhina E.S., Yaroslavtseva N.V., Nikitin D.A.</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://bulletin.esoil.ru/jour/article/view/923">https://bulletin.esoil.ru/jour/article/view/923</self-uri><abstract><p>Впервые с помощью метода грануло-денсиметрического фракционирования с ультразвуковой диспергацией исследован компонентный состав органического вещества пелоземов сильноскелетных остаточно-карбонатных (Skeletic Leptosols (Loamic)), карбопетроземов (Calcaric Leptosols (Protic)), петроземов (Skeletic Leptosols (Protic)) и криоземов (Oxyaquic Cryosols (Loamic)) северной части архипелага Новая Земля. Показано, что вне зависимости от глубины залегания горизонтов во всех исследованных почвах углерод (С) в дискретном органическом веществе (свободное – ЛФСВ и агрегированное – ЛФАГР) на 94–96% (в среднем) представлен органическим С (Сорг), в илистой фракции и остатке вклад Сорг снижается до 87 и 54% от Собщ фракции. Уровень накопления Сорг в различных фракциях во многом определяет микробиологическую активность почв. Коэффициент корреляции (R2, р &lt; 0.05) между Сорг конкретных фракций (% в почве) и содержанием микробной биомассы снижается в следующем ряду: ЛФАГР (0.59) &gt; мА (0.53) &gt; ЛФСВ (0.50) &gt; ил (0.36) &gt; остаток (0.26), отражая важную роль структурных единиц почвы, в частности, неустойчивых в ультразвуковом поле микроагрегатов (мА), в обеспечении благоприятных экологических условий для функционирования микробиоты.</p></abstract><trans-abstract xml:lang="en"><p>For the first time, the composition of organic matter (OM) in strongly skeletal residual carbonate pelozems (Skeletic Leptosols (Loamic)), carbopetrozems (Calcaric Leptosols (Protic)), petrozems (Skeletic Leptosols (Protic)) and cryozems (Oxyaquic) in the northern part of the Novaya Zemlya archipelago was studied using granulometric fractionation. It has been shown that, regardless of the depth of the horizons in all studied objects, carbon in particulate OM (free – LFfr and occluded – LFocc) is 94–96% (on average) represented by organic C (Corg), in the clay fraction and the residue, the share of Corg decreases to 87 and 54% of the Ctotal in fraction. The level of Corg accumulation in various fractions largely determines the microbiological activity in the studied soils. The correlation coefficient (R2, P &lt; 0.05) between Corg of specific fractions (% in soil) and the content of microbial biomass decreases in the following order: LFocc (0.59) &gt; mA (0.53) &gt; LFfr (0.50) &gt; clay (0.36) &gt; residue (0.26), reflecting the important role of soil structural units, in particular, microaggregates within aggregates (mA) that are unstable in the ultrasonic field, in providing comfortable environmental conditions for the microbiota.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Арктика</kwd><kwd>экстремальные экосистемы</kwd><kwd>перигляциальная зона ледника</kwd><kwd>органическое вещество</kwd><kwd>грануло-денсиметрическое фракционирование</kwd><kwd>биомасса микроорганизмов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Arctic</kwd><kwd>extreme ecosystems</kwd><kwd>periglacial glacier zone</kwd><kwd>organic matter</kwd><kwd>granulo-density fractionation</kwd><kwd>biomass of microorganisms</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">Ананко Т.В., Герасимова М.И., Конюшков Д.Е. 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