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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">ecodag</journal-id><journal-title-group><journal-title xml:lang="ru">Юг России: экология, развитие</journal-title><trans-title-group xml:lang="en"><trans-title>South of Russia: ecology, development</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1992-1098</issn><issn pub-type="epub">2413-0958</issn><publisher><publisher-name>State Institute of Applied Ecology of the Republic of Dagestan</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18470/1992-1098-2023-1-102-116</article-id><article-id custom-type="elpub" pub-id-type="custom">ecodag-2754</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>ГЕОЭКОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>GEOECOLOGY</subject></subj-group></article-categories><title-group><article-title>Оценка экологического состояния водных объектов бессточной области Обь-Иртышского междуречья</article-title><trans-title-group xml:lang="en"><trans-title>Assessment of the ecological state of water bodies of the drainless area of the Ob-Irtysh River basin</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0081-9652</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рыбкина</surname><given-names>И. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Rybkina</surname><given-names>I. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ирина Д. Рыбкина - доктор географических наук, доцент, зав. Лабораторией.</p><p>656038 Барнаул, ул. Молодежная, 1. Тел. +73852666506</p></bio><bio xml:lang="en"><p>Irina D. Rybkina - Doctor of Geographical Sciences, Head, Laboratory of Water Resources Management.</p><p>1 Molodezhnaya St, Barnaul, 656038. Tel. +73852666506</p></bio><email xlink:type="simple">irina.rybkina@mail.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/0000-0001-6738-2769</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яныгина</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Yanygina</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Любовь В. Яныгина</p><p>Барнаул</p></bio><bio xml:lang="en"><p>Lyubov V. Yanygina</p><p>Barnaul</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0693-6371</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Губарев</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Gubarev</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил С. Губарев</p><p>Барнаул</p></bio><bio xml:lang="en"><p>Mihail S. Gubarev</p><p>Barnaul</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4895-6875</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бурмистрова</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Burmistrova</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ольга С. Бурмистрова</p><p>Барнаул</p></bio><bio xml:lang="en"><p>Olga S. Burmistrova</p><p>Barnaul</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8427-3329</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Котовщиков</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kotovshchikov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антон В. Котовщиков</p><p>Барнаул</p></bio><bio xml:lang="en"><p>Anton V. Kotovshchikov</p><p>Barnaul</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт водных и экологических проблем, СО РАН</institution></aff><aff xml:lang="en"><institution>Institute for Water and Environmental Problems, Siberian Branch, Russian Academy of Sciences</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2023</year></pub-date><volume>18</volume><issue>1</issue><fpage>102</fpage><lpage>116</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Рыбкина И.Д., Яныгина Л.В., Губарев М.С., Бурмистрова О.С., Котовщиков А.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Рыбкина И.Д., Яныгина Л.В., Губарев М.С., Бурмистрова О.С., Котовщиков А.В.</copyright-holder><copyright-holder xml:lang="en">Rybkina I.D., Yanygina L.V., Gubarev M.S., Burmistrova O.S., Kotovshchikov 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://ecodag.elpub.ru/ugro/article/view/2754">https://ecodag.elpub.ru/ugro/article/view/2754</self-uri><abstract><sec><title>Цель</title><p>Цель. Оценить современное состояние водных объектов, сравнить с ретроспективными данными их изучения, актуализировать банк гидрологической, гидрохимической и гидробиологической информации.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Использованы три группы показателей: гидрологические, гидрохимические и гидробиологические. Гидрологические измерения проводились для определения расхода воды на реках и их участках, не охваченных системой наблюдений Росгидромета. Гидрохимический анализ проб осуществлялся методами ионной хроматографии и спектрофотометрии и включал определение основных катионов и анионов, органических веществ и биогенов. Оценку качества воды по гидробиологическим показателям проводили с использованием структурных характеристик фито- и зоопланктона.</p></sec><sec><title>Результаты</title><p>Результаты. По эколого-санитарным показателям качество воды только трех рек - Солоновка, Черемшанка и Бурла (нижнее течение) -относятся к классу 4 (загрязненные воды). Большинство рек имеет 2 класс качества (чистые).</p></sec><sec><title>Выводы</title><p>Выводы. Выявлена тенденция увеличения уровня минерализации и метаморфизация химического состава природных вод бессточной области Обь-Иртышского междуречья. Отмечено загрязнение водных объектов органическими веществами и биогенами.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. Assess the current state of water bodies, compare with retrospective study data, update the bank of hydrological, hydrochemical and hydrobiological information.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. Three groups of indicators were used: hydrological, hydrochemical and hydrobiological. Hydrological measurements were carried out to determine the flow of water in the rivers and their sections not covered by the Roshydromet observation system. Hydrochemical analysis of samples was carried out by ion chromatography and spectrophotometry and included the determination of basic cations and anions, organic substances and biogens. The assessment of water quality by hydrobiological indicators was carried out using the structural characteristics of phyto- and zooplankton.</p></sec><sec><title>Results</title><p>Results. According to environmental and sanitary indicators, the water quality of only three rivers - Solonovka, Cheremshanka and Burla (downstream) - belongs to class 4 (polluted waters). Most of the rivers have the 2nd class of water quality (clean).</p></sec><sec><title>Conclusions</title><p>Conclusions. A trend towards an increase in the level of mineralization and metamorphization of the chemical composition of natural waters in the inland region of the Ob-Irtysh interfluve was revealed. The pollution of water bodies with organic substances and biogens was noted.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>Реки бессточной области Оби и Иртыша</kwd><kwd>экологические последствия сельскохозяйственной освоенности</kwd><kwd>водный режим и гидрологические параметры</kwd><kwd>гидрохимические и гидробиологические показатели качества вод</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Rivers drainless area of the Ob-Irtysh River basin</kwd><kwd>environmental consequences of agricultural development</kwd><kwd>water regime and hydrological parameters</kwd><kwd>hydrochemical and hydrobiological indicators of water quality</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работы выполнены в рамках государственного задания ИВЭП СО РАН, гранта РФФИ №21-55-75002 «Разработка рекомендаций в целях устойчивого совместного использования почв и грунтовых (подземных) вод: принятие решений при поддержке и участии заинтересованных сторон» и при поддержке гранта РГО «Международная конференция «Трансграничные геоэкологические проблемы и вопросы природопользования в бассейне рек Внутренней Евразии в связи с изменением климата»</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of the state task of the IWEP SB RAS, RFBR grant No. 21-55-75002 "Development of recommendations for the sustainable sharing of soils and groundwaters: decision-making with the support and participation of stakeholders" and with the support of a grant from the Russian Geographical Society -International Conference "Transboundary Geoecological problems and Environmental Management issues in the basin of the rivers of Inner Eurasia in connection with climate change"</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">Цимбалей Ю.М., Андреева И.В. 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