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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">10.19047/0136-1694-2026-127-5-38</article-id><article-id custom-type="elpub" pub-id-type="custom">esoil-1073</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>Почвенные комбинации как объект цифровой почвенной картографии: лесостепь Окско-Донской низменности</article-title><trans-title-group xml:lang="en"><trans-title>Soil combinations as an object of digital soil mapping: forest-steppe of the Oka-Don lowland</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0103-0300</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козлов</surname><given-names>Д. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlov</surname><given-names>D. N.</given-names></name></name-alternatives><bio xml:lang="ru"><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">Kozlov_DN@esoil.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/0000-0003-0377-3124</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лозбенев</surname><given-names>Н. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Lozbenev</surname><given-names>N. I.</given-names></name></name-alternatives><bio xml:lang="ru"><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">nlozbenev@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/0009-0000-7865-9807</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Левченко</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Levchenko</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><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">novichkova.ea@mail.ru</email><xref ref-type="aff" rid="aff-2"/></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>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><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>13</day><month>04</month><year>2026</year></pub-date><volume>0</volume><issue>127</issue><fpage>5</fpage><lpage>38</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Козлов Д.Н., Лозбенев Н.И., Левченко Е.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Козлов Д.Н., Лозбенев Н.И., Левченко Е.А.</copyright-holder><copyright-holder xml:lang="en">Kozlov D.N., Lozbenev N.I., Levchenko E.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/1073">https://bulletin.esoil.ru/jour/article/view/1073</self-uri><abstract><p>На примере участка Битюго-Савала-Цнинского междуречья Окско-Донской низменности площадью 0.5 млн га показаны возможности цифрового картографирования компонентного состава микроструктур почвенного покрова лесостепной зоны. Слабопересеченный рельеф междуречья и породы с низкой фильтрационной способностью определили условия затрудненного поверхностного и внутрипочвенного стока и, как следствие, преобладание в структуре почвенного покрова полугидроморфных и гидроморфных почв черноземного ряда с участием солонцовых почв на северной границе их ареала. Особенности почвенного покрова региона выражены зависимостью долевого участия почв в составе почвенных комбинаций от морфологических особенностей мезорельефа как ведущего фактора их организации. Разнообразие почв и их внутриландшафтная изменчивость определены массивом 2 200 почвенных описаний 12 типов/подтипов почв. Наиболее значимые факторы их пространственной организации – крутизна склонов (°), относительные превышения в окрестности 2 000 м (м), превышения над базисом эрозии (м), соотношение длины и крутизны склонов (LS-фактор), отношение водосборной площади к локальной крутизне (TWI), глубина (м) и плотность (га/100 га) замкнутых понижений. Региональное разнообразие почвенного покрова сведено к десяти типам микроструктур с учетом их компонентного состава. Сравнение их границ с содержанием архивных материалов почвенного обследования показало сопоставимость и преимущества цифровой модели организации почвенного покрова по сравнению с региональным обобщением крупномасштабных почвенных карт землепользований (юг Тамбовской области). Использованный подход представляется перспективным для решения фундаментальных и прикладных задач, связанных с изучением и инвентаризацией почвенного покрова как компонента ресурсного потенциала сельскохозяйственного землепользования.</p></abstract><trans-abstract xml:lang="en"><p>A 0.5 million-hectare study area of the Bityug-Saval-Tsna interfluve of the Oka-Don lowland demonstrates the potential of digital mapping of soil combinations in the forest-steppe zone. The gently rugged topography of the interfluve and deposits with low permeability have resulted in restricted surface and subsurface runoff, leading to a predominance of semihydromorphic and hydromorphic chernozem soils in the soil structure, with some solonetzic soils at the northern boundary of their range. The region's soil cover characteristics are expressed by the dependence of the proportion of soils in soil combinations on the morphological features of the mesorelief, which is the leading factor in their organization. Soil diversity and intralandscape variability are determined by a set of 2,200 soil descriptions of 12 soil types/subtypes. The most significant factors of their spatial organization are slope steepness (°), topographic position index with radius 2,000 m (m), channel network base level (m), LS-factor, topographic wetness index (TWI), depth (m), and density (ha/100 ha) of closed depressions. Regional soil cover diversity is reduced to ten types of soil combinations, taking into account their component composition. A comparison of their boundaries with the contents of archival soil survey data demonstrated the comparability and advantages of the digital soil cover organization model compared to a regional generalization of large-scale soil maps of land use (southern Tambov Oblast). The approach used appears promising for solving fundamental and applied problems related to the study and inventory of soil cover as a component of the resource potential of agricultural land use.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>структура почвенного покрова</kwd><kwd>почвенно-ландшафтные связи</kwd><kwd>черноземы</kwd><kwd>лугово-черноземные почвы</kwd><kwd>солонцы</kwd><kwd>фонд данных</kwd><kwd>землеустройство</kwd></kwd-group><kwd-group xml:lang="en"><kwd>soil cover structure</kwd><kwd>soil-landscape relationships</kwd><kwd>chernozems</kwd><kwd>meadow-chernozem soils</kwd><kwd>solonetz soils</kwd><kwd>data fund</kwd><kwd>land management</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках Государственного Задания Минобрнауки России на тему “Оптимизация сельскохозяйственного землепользования по экологическим и экономическим условиям в контексте современных вызовов” (НИОКТР № 125042105332-2).</funding-statement><funding-statement xml:lang="en">The studies were carried out within the framework of State assignment of the Ministry of Education and Science of Russia on the topic “Optimization of agricultural land use under environmental and economic conditions in the context of modern challenges” (NIOKTR No. 125042105332-2).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Величко А.А., Морозова Т.Д., Нечаев В.П., Порожнякова О.М. 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