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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">geomorf</journal-id><journal-title-group><journal-title xml:lang="ru">Геоморфология и палеогеография</journal-title><trans-title-group xml:lang="en"><trans-title>Geomorfologiya i Paleogeografiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2949-1789</issn><issn pub-type="epub">2949-1797</issn><publisher><publisher-name></publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31857/10.31857/S2949178923040126</article-id><article-id custom-type="edn" pub-id-type="custom">XWGHCZ</article-id><article-id custom-type="elpub" pub-id-type="custom">geomorf-3271</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><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Особенности процесса изоляции озера Витальевского (остров Валаам) и динамика растительности в связи с изменением уровня Ладожского озера в позднем голоцене</article-title><trans-title-group xml:lang="en"><trans-title>Lake Vitalievskoye (Valaam Island) isolation process and vegetation dynamics due to changes in the level of the Lake Ladoga during the Late Holocene</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0933-7091</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сапелко</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sapelko</surname><given-names>T. V.</given-names></name></name-alternatives><email xlink:type="simple">tsapelko@mail.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>Газизова</surname><given-names>Т. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Gazizova</surname><given-names>T. Yu.</given-names></name></name-alternatives><email xlink:type="simple">tssml@bk.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>Моисеенко</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Moiseenko</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="en"><p>St. Petersburg State University, St. Petersburg</p></bio><email xlink:type="simple">tsapelko@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лудикова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ludikova</surname><given-names>A. V.</given-names></name></name-alternatives><email xlink:type="simple">ellerbeckia@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>Кузнецов</surname><given-names>Д. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetsov</surname><given-names>D. D.</given-names></name></name-alternatives><email xlink:type="simple">dd_kuznetsov@mail.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>Русанов</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Rusanov</surname><given-names>A. G.</given-names></name></name-alternatives><email xlink:type="simple">a_rusanov@yahoo.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт озероведения РАН – СПб ФИЦ РАН, Санкт-Петербург</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Limnology of the Russian Academy of Sciences, St. Petersburg Federal Research Center of the Russian Academy of Sciences, St. Petersburg</institution><country>Russian Federation</country></aff></aff-alternatives><aff xml:lang="ru" id="aff-2"><institution>Санкт-Петербургский государственный университет, Санкт-Петербург</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>11</day><month>12</month><year>2023</year></pub-date><volume>54</volume><issue>4</issue><fpage>72</fpage><lpage>89</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сапелко Т.В., Газизова Т.Ю., Моисеенко А.Д., Лудикова А.В., Кузнецов Д.Д., Русанов А.Г., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Сапелко Т.В., Газизова Т.Ю., Моисеенко А.Д., Лудикова А.В., Кузнецов Д.Д., Русанов А.Г.</copyright-holder><copyright-holder xml:lang="en">Sapelko T.V., Gazizova T.Y., Moiseenko A.D., Ludikova A.V., Kuznetsov D.D., Rusanov A.G.</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://geomorphology.igras.ru/jour/article/view/3271">https://geomorphology.igras.ru/jour/article/view/3271</self-uri><abstract><p>Пыльца макрофитов является ценным источником информации об изменении уровня озера. Продолжая наши предыдущие исследования по использованию пыльцевого анализа макрофитов в палеолимнологии, мы изучили колонку донных отложений озера Витальевского на острове Валаам (северная часть Ладожского озера). Для подтверждения полученных результатов палинологического анализа дополнительно проведены литологический и диатомовый анализы. С помощью геоботанического и палинологического анализов поверхностных проб озерных отложений установлено распространение макрофитов на внутренних островных озерах на современном этапе. В результате комплексное исследование позволило установить этапы развития оз. Витальевского в позднем голоцене: этап залива Ладожского озера с небольшим зарастанием водной растительностью; этап изоляции озера от Ладоги, когда макрофиты практически исчезали из водоема и этап самостоятельного развития оз. Витальевского, когда произошло их массовое распространение, а затем в результате антропогенного воздействия стало сокращаться. Проведенное исследование на о. Валаам позволило получить данные по современному распространению макрофитов в островных озерах северной части Ладожского озера, их динамике в позднем голоцене, а также провести методическую работу по установлению роли макрофитов для изучения истории как малых островных озер, так и Ладожского озера.</p></abstract><trans-abstract xml:lang="en"><p>The macrophyte pollen is a valuable source of information about lake level changes. Continuing our previous studies on the use of the macrophytes pollen analysis in the paleolimnology we studied the Lake Vitalievskoye sediments sequence of on the Valaam Island (the northern part of Lake Ladoga). To confirm the results of pollen analysis we conducted lithological and diatom analyzes. The macrophytes distribution of the island lakes at the present time has been established with the help of geobotanical and pollen analyzes of the lacustrine surface sediments. As a result, a comprehensive study made it possible to establish the stages of the Lake Vitalievskoye development during the Late Holocene: The Lake Ladoga Bay stage with a slight overgrowth of aquatic vegetation; the lake isolation stage of the from Lake Ladoga, when macrophytes disappeared from the lake, and the lake independent development stage, when their maximum distribution occurred and later began to decline as a result of the human impact. According to our research of the Valaam Island lakes we have received new data about the modern distribution of macrophytes in the island lakes, their dynamics in the Late Holocene. We also conducted a methodological study establishing the macrophytes pollen role in studying the small island lakes history and the Lake Ladoga level.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Ладожское озеро</kwd><kwd>островные озера</kwd><kwd>остров Валаам</kwd><kwd>поздний голоцен</kwd><kwd>изоляция</kwd><kwd>донные отложения</kwd><kwd>макрофиты</kwd><kwd>пыльца</kwd><kwd>диатомовые водоросли</kwd><kwd>литология</kwd><kwd>органическое вещество</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Lake Ladoga</kwd><kwd>island lakes</kwd><kwd>Valaam Island</kwd><kwd>Late Holocene</kwd><kwd>isolation</kwd><kwd>lake sediments</kwd><kwd>macrophytes</kwd><kwd>pollen</kwd><kwd>diatoms</kwd><kwd>lithology</kwd><kwd>organic matter</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают благодарность Н.В. Игнатьевой и Л.И. Суворовой за гидрохимический анализ. Исследование выполнено в рамках государственного задания ИНОЗ РАН – СПб ФИЦ РАН по теме № FMNG-2019-0001</funding-statement><funding-statement xml:lang="en">The authors are grateful to N.V. Ignatieva and L.I. Suvorova for hydrochemical analysis. The study contributes to the State Research Program of the Institute of Limnology – St. Petersburg Federal Research Center of the Russian Academy of Sciences on topic No. FMNG-2019-0001</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">Газизова Т.Ю., Сапелко Т.В. (2020) Обоснование значения пыльцы макрофитов для палеолимнологических реконструкций на примере озер о. Лункулансаари на северо-востоке Ладожского озера // Биосфера. № 4. С. 21–30.</mixed-citation><mixed-citation xml:lang="en">Gazizova T.Yu., Sapelko T.V. 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