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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Ecology and Life Safety</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Ecology and Life Safety</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Экология и безопасность жизнедеятельности</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-2310</issn><issn publication-format="electronic">2408-8919</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">22108</article-id><article-id pub-id-type="doi">10.22363/2313-2310-2019-27-1-39-50</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Ecology</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экология</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Comparative analysis of heavy metals accumulation in the soil - plant system by the geo-accumulation index and transpiration rate of Zea mays L</article-title><trans-title-group xml:lang="ru"><trans-title>Сравнительный анализ накопления тяжелых металлов в системе «почва - растение» по индексу геоаккумуляции и коэффициенту транспирации Zea mays L</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sukiasyan</surname><given-names>Astghik Rafikovna</given-names></name><name xml:lang="ru"><surname>Сукиасян</surname><given-names>Астгик Рафиковна</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Biological Science, Assistant Professor of Faculty of Chemical Technology and Environmental Engineering</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, доцент факультета химических технологий и природоохранной инженерии</p></bio><email>sukiasyan.astghik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">National Polytechnic University of Armenia</institution></aff><aff><institution xml:lang="ru">Национальный политехнический университет Армении</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2019</year></pub-date><volume>27</volume><issue>1</issue><issue-title xml:lang="en">VOL 27, NO1 (2019)</issue-title><issue-title xml:lang="ru">ТОМ 27, №1 (2019)</issue-title><fpage>39</fpage><lpage>50</lpage><history><date date-type="received" iso-8601-date="2019-11-15"><day>15</day><month>11</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Sukiasyan A.R.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Сукиасян А.Р.</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Sukiasyan A.R.</copyright-holder><copyright-holder xml:lang="ru">Сукиасян А.Р.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/ecology/article/view/22108">https://journals.rudn.ru/ecology/article/view/22108</self-uri><abstract xml:lang="en"><p>The aim of work is the assessment of the effect of water deficiency in the soil, taking into account the characteristics of the migration of heavy metals in the soil - plant system using the example of mays ( Zea mays L . ). The samples studied grew in the coastal areas of the Debet, Shnogh and Araks rivers. The selection of plant material was carried out during the growing season at the test sites in clear dry weather. The analysis of the coastal soil and annual plant on the content of Mn, Cu, Co, Zn, Mo was performed using the “Thermo Scientific Niton XRF Portable Analyzer”. According of obtained results the coefficient of the geo-accumulation index was calculated, identifying the main migration characteristics of heavy metals in the soil - plant system. Drought tolerance was identified at the seedling stage by changing the growing conditions by changing of watering of the plot. Calculation of the intensity of transpiration revealed changes in the water balance in plants depending on the soil and climatic growing conditions. According to the obtained results, it is noted that with an increase in the geo-accumulation index of heavy metals in the soil, the plant shows a significant decrease in the intensity of transpiration. Thus, in the course of the experiments, it was established that samples of corn from the arid region of Hushakert had a low level of transpiration, compared with samples from the moderately humid region of Shnogh. Combining the results on the content of heavy metals in corn kernels with the intensity of transpiration made it possible to investigate the correlation between the cumulative ability of the studied chemical elements and the regulation of water balance in the plant in response to drought. Among the main factors contributing to the increase in the migration of heavy metals is the content of potassium and calcium in the plant sample.</p></abstract><trans-abstract xml:lang="ru"><p>Целью работы являлась оценка влияния дефицита воды в почве с учетом особенностей миграции тяжелых металлов в системе «почва - растение» на примере сахарной кукурузы ( Zea mays L.). Исследуемые образцы произрастали на прибрежных территориях рек Дебет, Шнох и Аракс. Отбор растительного материала осуществлялся в течение вегетационного периода на опытных площадках в ясную сухую погоду. Выполнен анализ прибрежной почвы и однолетнего растения по содержанию Mn, Cu, Co, Zn, Mo с помощью Thermo Scientific Niton XRF Portable Analyser. На основании полученных результатов рассчитан коэффициент индекса геоаккумуляции, выявляющий основные миграционные характеристики тяжелых металлов в системе «почва - растение». Толерантность к засухе идентифицирована на стадии рассады путем изменения условий произрастания посредством изменения режима полива контрольных вазонов. Расчет интенсивности транспирации показал изменения водного баланса у растений в зависимости от почвенно-климатических условий произрастания. На основе полученных результатов отмечено, что при повышении значения индекса геоаккумуляции тяжелых металлов в почве у растения наблюдается значительное снижение интенсивности транспирации. Так, в ходе экспериментов установлено, что образцы кукурузы из засушливого региона Ушакерта имели низкий уровень транспирации, по сравнению с образцами из умеренно-влажного региона Шноха. Объединение данных о содержании тяжелых металлов в зернах кукурузы с интенсивностью транспирации позволило исследовать корреляцию между накопительной способностью исследуемых химических элементов и регуляцией водного баланса в растении в ответ на засуху. Среди основных факторов, способствующих повышению миграции тяжелых металлов, можно выделить содержание калия и кальция в растительном образце.</p></trans-abstract><kwd-group xml:lang="en"><kwd>plant</kwd><kwd>heavy metals</kwd><kwd>geo-accumulation index</kwd><kwd>transpiration intensity</kwd><kwd>drought</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>растение</kwd><kwd>тяжелые металлы</kwd><kwd>индекс геоаккумуляции</kwd><kwd>интенсивность транспирации</kwd><kwd>засуха</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Ubwa ST, Atoo GH, Offem JO, Abah J, Asemave K. Effect of activities at the Gboko abattoir on some physical properties and heavy metals levels of surrounding soil. Int. J. Chem. 2013;5: 47–57.</mixed-citation><mixed-citation xml:lang="ru">Ubwa S.T., Atoo G.H., Offem J.O., Abah J., Asemave K. 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