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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">vuzbiochemi</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Прикладная химия и биотехнология</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of Universities. Applied Chemistry and Biotechnology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2227-2925</issn><issn pub-type="epub">2500-1558</issn><publisher><publisher-name>ИРНИТУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/2227-2925-2023-13-2-272-282</article-id><article-id custom-type="edn" pub-id-type="custom">FILZTN</article-id><article-id custom-type="elpub" pub-id-type="custom">vuzbiochemi-1021</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>ФИЗИКО-ХИМИЧЕСКАЯ БИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICOCHEMICAL BIOLOGY</subject></subj-group></article-categories><title-group><article-title>Оценивание распределения вещества в системе почва–растение (на примере агрокультур)</article-title><trans-title-group xml:lang="en"><trans-title>Estimation of substance distribution in the soil-plant system (on the example of crop species)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2990-0059</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белых</surname><given-names>Л. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Belykh</surname><given-names>L. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Белых Лариса Ивановна - доктор химических наук, старший научный сотрудник, профессор кафедры промышленной экологии и БЖД.</p><p>664074, Иркутск, ул. Лермонтова, 83</p></bio><bio xml:lang="en"><p>Larisa I. Belykh - Dr. Sci. (Chemistry), Senior Researcher, Professor.</p><p>83, Lermontov St., Irkutsk, 664074</p></bio><email xlink:type="simple">belariv2000@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/0000-0001-8427-3732</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тимофеева</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Timofeeva</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тимофеева Светлана Семеновна - доктор технических наук, профессор, заведующая кафедрой промышленной экологии и БЖД.</p><p>664074, Иркутск, ул. Лермонтова, 83</p></bio><bio xml:lang="en"><p>Svetlana S. Timofeeva - Dr. Sci. (Engineering), Professor, Head of the Department of Industrial Ecology and Life Safety.</p><p>83, Lermontov St., Irkutsk, 664074</p></bio><email xlink:type="simple">timofeeva@istu.edu</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Иркутский национальный исследовательский технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk National Research Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>02</day><month>07</month><year>2023</year></pub-date><volume>13</volume><issue>2</issue><fpage>272</fpage><lpage>282</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Белых Л.И., Тимофеева С.С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Белых Л.И., Тимофеева С.С.</copyright-holder><copyright-holder xml:lang="en">Belykh L.I., Timofeeva S.S.</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://vuzbiochemi.elpub.ru/jour/article/view/1021">https://vuzbiochemi.elpub.ru/jour/article/view/1021</self-uri><abstract><p>Информативное оценивание распределения биогенных и загрязняющих веществ в системе почва–растение является теоретической и прикладной задачей в биогеохимии, агрохимии, экологической биотехнологии. Точечные, средние и экстремальные значения концентраций вещества в растении (Ср) и в почве (Сп), коэффициенты биологического поглощения (Кб=Ср/Сп) не характеризуют особенности распределения вещества в системе. Цель работы – изучение влияния концентрации в почве вещества на распределение его между растением и почвой. С помощью описания содержания в растении вещества от его концентрации в почве функциями Ср=f(Cп), Кб=f(Сп) предложены методические подходы к количественному оцениванию процесса распределения. Первый подход – аппроксимация зависимостей по линейным или адсорбционным степенным функциям Фрейндлиха и Ленгмюра Ср=f(Cп), из которых определяются концентрационные показатели вида а, 1Кр, Кр, С∞ . С их помощью оцениваются механизм и интенсивность накопления вещества растением. Второй подход включает получение степенной функции Кб=f(Cп) или ее линеаризированной формы lgКб=f(lgCп) с расчетом из них стандартизированных коэффициентов Кб – чувствительных при низких (1, 10) и предельных при высоких (100, 1000) концентрациях вещества в почве. На примере различных по физико-химическим и биологическим свойствам веществ – бенз(а)пирена, фтора и цинка – показано определение показателей для оценки абсолютного и относительного накопления веществ агрокультурами, проведены сравнения растений между собой, рассмотрены возможные механизмы распределения веществ и их интенсивность.</p></abstract><trans-abstract xml:lang="en"><p>Assessment of the distribution of nutrients and pollutants in the soil-plant system is a relevant theoretical and applied task in biogeochemistry, agrochemistry and environmental biotechnology. Pointwise, average and extreme values of the concentration of the studied substance in the plant (Cp) and in the soil (Cs), as well as biological absorption coefficients (Kab=Cp /Cs), do not characterize the distribution of the studied substance in the system. This work investigates the effect of substance concentration in a soil on its distribution between the plant and the soil. The use of the Cp=f(Cs) and Kab=f(Cs) functions for describing the substance content in the plant depending on its concentration in the soil, allowed us to propose approaches to quantitative assessment of the distribution process. The first approach consists in the approximation of dependences by Freundlich and Langmuir linear or adsorption power functions Cp=f(Cs), on which basis the concentration parameters of а, 1Кр, Кр, С∞ are determined. These parameters are used to study the mechanism and intensity of substance accumulation by a plant. The second approach includes obtaining a power function Kab=f(Cs) or its linear representation lgKab=f(lgCs) and calculating standardized coefficients Kab. These coefficients are sensitive at low (1, 10) and limiting at high (100, 1000) concentrations of the studied substance in the soil. The example of benz(a)pyrene, fluorine and zinc, i.e., substances different in terms of their physical, chemical and biological properties, was applied to demonstrate the process of determining the absolute and relative accumulation of the substances by different crop species. A comparison of different plants was conducted; possible mechanisms of the distribution of the studied substances and their intensity are considered.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>система почва–растение</kwd><kwd>агрокультура</kwd><kwd>распределение вещества</kwd><kwd>концентрационные показатели</kwd><kwd>стандартизированные коэффициенты поглощения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Soil-plant system</kwd><kwd>crop species</kwd><kwd>substance distribution</kwd><kwd>concentration indices</kwd><kwd>standardized absorption coefficients</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">Кабата-Пендиас А., Пендиас Х. Микроэлементы в почвах и растениях / пер. с англ. М.: Мир, 1989. 439 с.</mixed-citation><mixed-citation xml:lang="en">Kabata-Pendias A., Pendias H. Trace elements in soils and plants; 2001. 331 p. 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