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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">isplta</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Санкт-Петербургской лесотехнической академии</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-4304</issn><issn pub-type="epub">2658-5871</issn><publisher><publisher-name>СПбГЛТУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21266/2079-4304.2026.257.182-202</article-id><article-id custom-type="elpub" pub-id-type="custom">isplta-692</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>ЛЕСНОЕ ХОЗЯЙСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>FORESTRY</subject></subj-group></article-categories><title-group><article-title>Тис ягодный и клён высокогорный на северном макросклоне Кавказа</article-title><trans-title-group xml:lang="en"><trans-title>Taxus baccata L. and Acer trautvetteri Medw. on the northern macroslope of the Caucasus</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0979-3858</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Базаев</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Bazaev</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Базаев Анвар Батразович – доцент, кандидат биологических наук</p><p>Scopus AuthorID: 5720460938 </p><p>362040, ул. Кирова, д. 37, г. Владикавказ </p></bio><bio xml:lang="en"><p>Bazaev Anwar B. – PhD (Biological), Associate Professor</p><p>362040. Kirov str. 37. Vladikavkaz </p></bio><email xlink:type="simple">bazanvar@yandex.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/0000-0002-7901-2180</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Грязькин</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gryazkin</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Грязькин Анатолий Васильевич – профессор, доктор биологических наук</p><p>Researcher ID: C-6699-2018 </p><p>194021, Институтский пер., д. 5, лит. У, Санкт-Петербург </p></bio><bio xml:lang="en"><p>Gryazkin Anatoly V. – DSc (Biological). Professor</p><p>Researcher ID: C-6699-2018 </p><p>194021. Institute per. 5. Let. U. St. Petersburg </p></bio><email xlink:type="simple">lesovod@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/0000-0002-2684-897X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хетагуров</surname><given-names>Х. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Khetagurov</surname><given-names>Kh. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хетагуров Хетаг Муратович – профессор, доктор биологических наук</p><p>ResearcherID: AAI-6375-2021 </p><p>362025, ул. Ватутина, д. 44-46, г. Владикавказ </p></bio><bio xml:lang="en"><p>Khetagurov Khetag M. – DSc (Biological), Professor</p><p>ResearcherID: AAI-6375-2021 </p><p>362025. Vatutina str. 44-46. Vladikavkaz </p></bio><email xlink:type="simple">zaz81@inbox.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2379-7601</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Николаев</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaev</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николаев Игорь Анатольевич – доцент, кандидат биологических наук</p><p>362025, ул. Ватутина, д. 44-46, г. Владикавказ </p></bio><bio xml:lang="en"><p>Nikolaev Igor A. – PhD (Biological), Associate Professor</p><p>362025. Vatutina str. 44-46. Vladikavkaz </p></bio><email xlink:type="simple">bootany@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Горский государственный аграрный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Gorsky State Agrarian University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный лесотехнический университет имени С.М. Кирова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St.Petersburg State Forest Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Северо-Осетинский государственный университет им. К.Л. Хетагурова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>North Ossetian State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>29</day><month>04</month><year>2026</year></pub-date><volume>1</volume><issue>257</issue><fpage>182</fpage><lpage>202</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Базаев А.Б., Грязькин А.В., Хетагуров Х.М., Николаев И.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Базаев А.Б., Грязькин А.В., Хетагуров Х.М., Николаев И.А.</copyright-holder><copyright-holder xml:lang="en">Bazaev A.B., Gryazkin A.V., Khetagurov K.M., Nikolaev I.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://izvestiya-lta.spbftu.ru/jour/article/view/692">https://izvestiya-lta.spbftu.ru/jour/article/view/692</self-uri><abstract><p>Представлены сравнительные данные по видовому составу растительности среднего пояса горных лесов на северных макросклонах Кавказа. Цель исследования – сравнение видового состава растений по компонентам фитоценоза в горном поясе произрастания тиса ягодного и клёна Траутфеттера. Объект исследования – лесные формации с тисом ягодным и клёном высокогорным на высоте около 1100 м над уровнем моря. Учёт растительности одновременно по всем компонентам фитоценоза проводили на круговых учётных площадках радиусом 178,5 см в соответствии с патентом РФ № 2852509. Кленовники представлены древостоями смешанного состава (59% – клён высокогорный, 14% – бук восточный, 11% – ольха черная, 8% – ильм горный, 6% – клён остролистный, 3% – ясень обыкновенный). В древостоях, под пологом которых произрастает тис, преобладает граб обыкновенный – 66% по запасу древесины. Состав подроста в кленовниках представлен 8 видами с преобладанием клёна остролистного, под буковым древостоем – 3 видами с преобладанием бука восточного. Видовой состав подлеска разнообразнее в кленовниках – 8 видов против 4 под пологом грабинника. Живой напочвенный покров представлен 16-20 видами. Коэффициент общности видов составляет от 0,33 до 0,45. Установлено совпадение верхнего пояса распространения тиса ягодного – Taxus baccata – с нижним поясом произрастания клёна высокогорного – Acer trautvetteri. При этом клён произрастает преимущественно на склонах северных экспозиций, а тис – под пологом древостоев на склонах любой экспозиции, преимущественно крутых и труднодоступных. Состав древостоев, подроста, подлеска и живого напочвенного покрова в сравниваемых лесных экосистемах различается. Совместное произрастание тиса ягодного и клёна высокогорного зафиксировано в урочище Зилахар РСО-Алания на высоте 1100-1200 м над уровнем моря. Полученные результаты могут быть использованы при обновлении лесных планов и лесохозяйственных регламентов.</p></abstract><trans-abstract xml:lang="en"><p>The article presents comparative data on the species composition of the vegetation of the middle belt of mountain forests on the northern macroslopes of the Caucasus. The purpose of the study is to compare the species composition of plants according to the components of the phytocenosis in the vertical zone of Taxus baccata and Acer trautvetteri. The object of the study is forest formations with Taxus baccata and Acer trautvetteri at an altitude of about 1100 m above sea level. The vegetation was studied simultaneously for all components of the phytocenosis on circular accounting sites with a radius of 178.5 cm in accordance with Russian Patent № 2852509. The maple forests are represented by mixed-species stands: 59% – Acer rautvetteri Medw., 14% – Fagus orientalis, 11% – Alnus glutinosa, 8% – Ulmus laevis, 6% – Acer platanoides, and 3% – Fraxinus excelsior. In the stands where yew grows, the common hornbeam dominates, accounting for 66% of the total wood stock. The saplings in maple forests consist of 8 species, with a predominance of Acer platanoides, while the saplings in beech forests consist of 3 species, with a predominance of Quercus petraea. The undergrowth in maple forests is more diverse than in beech forests, with 8 species compared to 4 species. The living ground cover consists of 16-20 species. The species diversity coefficient ranges from 0.33 to 0.45. The coincidence of the upper distribution zone of the Taxus baccata with the lower belt of the Acer trautvetteri has been established. At the same time, maple grows mainly on the slopes of northern expositions, and yew under the canopy of stands – mainly on steep, inaccessible slopes of any exposure. The composition of stands, saplings, undergrowth, and living ground cover varies in the compared forest ecosystems. The co-occurrence of Taxus baccata and Acer trautvetteri has been recorded in the Zilakhar tract of the North Ossetian-Alania Republic at an altitude of 1100–1200 m above sea level. The results obtained can be used in the updating of forest plans and forest management regulations.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лесные экосистемы</kwd><kwd>высокогорный кленовник</kwd><kwd>тис ягодный</kwd><kwd>древостой</kwd><kwd>подрост</kwd><kwd>подлесок</kwd><kwd>живой напочвенный покров</kwd></kwd-group><kwd-group xml:lang="en"><kwd>forest ecosystems</kwd><kwd>high-altitude maple forests</kwd><kwd>yew forests</kwd><kwd>tree stands</kwd><kwd>saplings</kwd><kwd>undergrowth</kwd><kwd>living ground cover</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">Алиев Х.У., Муртазалиев Р.А. Анализ флоры буковых лесов Дагестана // Известия Дагестанского государственного педагогического университета. Естественные и точные науки. 2010. № 2. С. 37–42.</mixed-citation><mixed-citation xml:lang="en">Aliev Kh.U., Murtazaliev A.N. 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