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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">nuc</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник НЯЦ РК</journal-title><trans-title-group xml:lang="en"><trans-title>NNC RK Bulletin</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1729-7516</issn><issn pub-type="epub">1729-7885</issn><publisher><publisher-name>Национальный ядерный центр Республики Казахстан</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52676/1729-7885-2024-1-104-107</article-id><article-id custom-type="elpub" pub-id-type="custom">nuc-647</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>ПОГЛОЩЕНИЕ ПРОЧНОСВЯЗАННОГО ТРИТИЯ РАСТЕНИЯМИ</article-title><trans-title-group xml:lang="en"><trans-title>UPTAKE OF TIGHTLY BOUND TRITIUM BY PLANTS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поливкина</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Polivkina</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">polivkina.elena75@gmail.com</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>Ларионова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Larionova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">larionova@nnc.kz</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>Тимонова</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Timonova</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">timonova@nnc.kz</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>Сысоева</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Syssoeva</surname><given-names>Ye. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">syssoeva@nnc.kz</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>Паницкий</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Panitskiy</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курчатов</p><p>   </p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">panitskiy@nnc.kz</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Филиал «Институт радиационной безопасности и экологии» РГП НЯЦ РК<country>Казахстан</country></aff><aff xml:lang="en">Branch "Institute of Radiation Safety and Ecology" RSE NNC<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>28</day><month>03</month><year>2024</year></pub-date><volume>0</volume><issue>1</issue><fpage>104</fpage><lpage>107</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Поливкина Е.Н., Ларионова Н.В., Тимонова Л.В., Сысоева Е.С., Паницкий А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Поливкина Е.Н., Ларионова Н.В., Тимонова Л.В., Сысоева Е.С., Паницкий А.В.</copyright-holder><copyright-holder xml:lang="en">Polivkina E.N., Larionova N.V., Timonova L.V., Syssoeva Y.S., Panitskiy A.V.</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://journals.nnc.kz/jour/article/view/647">https://journals.nnc.kz/jour/article/view/647</self-uri><abstract><p>Проведено исследование биологической доступности прочносвязанной формы трития в почве in situ в условиях Семипалатинского испытательного полигона (СИП) и в лабораторном вегетационном эксперименте. В растениях Stipa capillata, произрастающих на территории СИП в местах проведения ядерных испытаний, зафиксированы значимые концентрации органически связанного трития (ОСТ)  при отсутствии трития в свободной воде тканей (ТСВ) на момент отбора. В модельном эксперименте с использованием культуры Cucumis sativus удельная активность прочносвязанного трития в составе твердой фазы почвы и тритированной воды (НТО) в составе почвенного раствора в начале и в конце эксперимента существенно отличались. При этом удельная активность ТСВ в Cucumis sativus была на 2 порядка меньше по сравнению с активностью прочносвязанного трития в почве и незначительно отличалась от активности тритированной воды в почвенном растворе, который является доступным для корневой системы растений. Результаты вегетационных исследований показали, что непосредственным источником трития для экспериментальных растений являлся почвенный раствор. Однако, изменения удельной активности трития в жидкой и твердой фазе почвы в вегетационных сосудах указывают на то, что источником тритированной воды в почвенном растворе являлась прочносвязанная форма радионуклида в результате процессов выщелачивания. Сделано предположение, что возможными причинами выщелачивания прочносвязанного радионуклида из твердой фазы в почвенный раствор является режим увлажнения, а также влияние ризосферы растений.</p></abstract><trans-abstract xml:lang="en"><p>A study of the bioavailability of a tightly bound tritium in the soil in situ under the conditions of the Semipalatinsk test site (STS) and in a laboratory vegetation experiment was conducted. Significant concentrations of organically bound tritium (OBT) were recorded in Stipa capillata plants growing on the territory of the STS. At the same time, tritium in the free water of plant tissues (TFWT) was not detected. In a model experiment using Cucumis sativus culture, the specific activity of tightly bound tritium in the composition of the solid phase of the soil and tritiated water (HTO) in the composition of the soil solution at the beginning and at the end of the experiment differed significantly. At the same time, TFWT activity in Cucumis sativus was 2 orders of magnitude less compared to the activity of tightly bound tritium in the soil and slightly differed from the activity of tritiated water in the soil solution, which is accessible to the root system of plants. The results of vegetation studies have shown that the direct source of tritium for experimental plants was a soil solution. However, changes in the tritium activity in the soil liquid and solid phases in vegetation vessels indicate that the source of tritiated water in the soil solution was a tightly bound form of radionuclide as a result of leaching processes. It is assumed that the possible causes of leaching of tightly bound radionuclide from the solid phase into the soil solution are the moisture regime, as well as the influence of the rhizosphere of plants.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Семипалатинский испытательный полигон</kwd><kwd>прочносвязанный тритий</kwd><kwd>биологическая доступность</kwd><kwd>Stipa capillata</kwd><kwd>Cucumis sativus</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Semipalatinsk test site</kwd><kwd>tightly bound tritium</kwd><kwd>bioavailability</kwd><kwd>Stipa capillata</kwd><kwd>Cucumis sativus</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследования выполнены при финансовой поддержки Комитета науки Министерства науки и высшего образования  Республики Казахстан. Грант МОН РК ИРН AP19675034 «Исследование радиоэкологической опасности органически-связанного трития при его накоплении сельскохозяйственными растениями».</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The research was funded by the Committee of Science of the Ministry of Science and Higher Education of the Republic of Kazakhstan (grant AR19675034 “Study of the radioecological hazard of organically bound tritium when accumulated by farm crops”).</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">Erolle F., Ducros L., Séverine L.D., Beaugellin-Seiller K. An updated review on tritium in the environment // J. Environ. Radioact. 2018. – Vol. 181. – Р. 128–137. https://doi.org/10.1016/j.jenvrad.2017.11.001</mixed-citation><mixed-citation xml:lang="en">Erolle F., Ducros L., Séverine L.D., Beaugellin-Seiller K. 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