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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">biologyscience</journal-id><journal-title-group><journal-title xml:lang="ru">Тимирязевский биологический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Timiryazev Biological Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2949-4710</issn><publisher><publisher-name>ФГБОУ ВО РГАУ-МСХА имени К.А. Тимирязева (ФГБОУ ВО РГАУ-МСХА имени К.А. Тимирязева)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26897/2949-4710-2023-2-107-117</article-id><article-id custom-type="elpub" pub-id-type="custom">biologyscience-3</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>ЭКОЛОГИЯ, ПОЧВОВЕДЕНИЕ, ЗЕМЛЕУСТРОЙСТВО, КАДАСТР И МОНИТОРИНГ ЗЕМЕЛЬ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ECOLOGY, SOIL SCIENCE, LAND MANAGEMENT, LAND CADASTRE AND LAND MONITORING</subject></subj-group></article-categories><title-group><article-title>Засоление почв мелиорируемых сельскохозяйственных земель Алтайского края: кластерный анализ</article-title><trans-title-group xml:lang="en"><trans-title>Salinisation of Reclaimed Agricultural Land in the Altai Territory: Cluster Analysis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3968-0563</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Снежко</surname><given-names>В. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Snezhko</surname><given-names>V. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вера Леонидовна Снежко, заведующий кафедрой систем автоматизированного проектирования и инженерных расчетов, д-р техн. наук, профессор</p><p>125500, г. Москва, ул. Тимирязевская, 49</p></bio><bio xml:lang="en"><p>Vera L. Snezhko, Dsc (Eng), Professor, Head of the Department of Computer-Aided Design and Engineering Calculations</p><p>49, Timiryazevskaya Str., Moscow, 127434</p></bio><email xlink:type="simple">vlsnejko@rgau-msha.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/0000-0003-1265-4071</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бенин</surname><given-names>Д. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Benin</surname><given-names>D. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Михайлович Бенин, доцент кафедры сельскохозяйственного водоснабжения, водоотведения, насосов и насосных станций, канд. техн. наук, доцент</p><p>125500, г. Москва, ул. Тимирязевская, 49</p></bio><bio xml:lang="en"><p>Dmitrii M. Benin, CSc (Eng), Associate Professor, Associate Professor of the Department of Agricultural Water Supply, Sanitation, Pumps and Pumping Station</p><p>49, Timiryazevskaya Str., Moscow, 127434</p></bio><email xlink:type="simple">dbenin@rgau-msha.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/0000-0001-5060-7837</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гавриловская</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrilovskaya</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Надежда Владимировна Гавриловская, доцент кафедры систем автоматизированного проектирования и инженерных расчетов, канд. техн. наук</p><p>125500, г. Москва, ул. Тимирязевская, 49</p></bio><bio xml:lang="en"><p>Nadezhda V. Gavrilovskaya, CSc (eng) associate Professor, Associate Professor of the Department of Computer-Aided Design and EngineeringCalculations</p><p>49, Timiryazevskaya Str., Moscow, 127434</p></bio><email xlink:type="simple">gavrilovskayanv@rgau-msha.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский государственный аграрный университет – МСХА имени К.А. Тимирязева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian State Agrarian University – Moscow Timiryazev Agricultural Academy</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>21</day><month>03</month><year>2023</year></pub-date><volume>1</volume><issue>2</issue><fpage>107</fpage><lpage>117</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Снежко В.Л., Бенин Д.М., Гавриловская Н.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Снежко В.Л., Бенин Д.М., Гавриловская Н.В.</copyright-holder><copyright-holder xml:lang="en">Snezhko V.L., Benin D.M., Gavrilovskaya N.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://www.bioscience-journal.com/jour/article/view/3">https://www.bioscience-journal.com/jour/article/view/3</self-uri><abstract><p>Алтайский край занимает лидирующее положение среди субъектов Сибирского федерального округа по площади пахотных земель, из которых более 80% расположены в зоне неустойчивого увлажнения. Среди сельскохозяйственных гидротехнических мелиораций в крае преобладает орошение. Площадь орошаемых земель составляет около 69 тыс. га, из которых почти 10% имеют различную степень засоления в слое 0-100 см. Длительное орошение земель и несоблюдение технологий поливов приводит к засолению земель оросительных систем. В Российской Федерации на всех оросительных системах действуют единые правила сбора данных о состоянии земель, проведения почвенно-солевых съемок и лабораторной обработки материала полевых исследований. Выполнен анализ состояния орошаемых сельскохозяйственных угодий по степени их засоления за период с 1 января 2013 г. по 1 января 2022 г. по данным мелиоративного кадастра. Построена модель динамики площади сильно и очень сильно засоленных земель, проверены статистические оценки качества модели и определена средняя скорость ежегодного увеличения площади земель, подверженных засолению. Выполнен анализ наиболее возможных причин возникновения засоления на орошаемых землях, к которым относятся высокий уровень и минерализация грунтовых вод, высокая минерализация воды, используемой для орошения. Приведена динамика площадей с различным уровнем грунтовых вод, различной минерализацией грунтовых вод и оросительной воды. По данным на начало 2022 г., выполнен кластерный анализ районов Алтайского края по степени засоления земель сельскохозяйственных угодий.</p></abstract><trans-abstract xml:lang="en"><p>The Altai Territory occupies a leading position among the constituent entities of the Siberian Federal District in terms of arable land, of which more than 80% are located in the zone of unstable moisture. Irrigation is the predominant form of agricultural hydraulic reclamation in the region. The area of irrigated land is about 69 thousand hectares, of which almost 10% of the area has varying degrees of salinity in the 0‑100 cm layer. Prolonged irrigation and non-compliance with irrigation technologies can lead to salinisation of land. In the Russian Federation, all irrigation systems havecommon rules for collecting data on soil condition, conducting soil salinity surveys and laboratory processing of field research material. The analysis of irrigated agricultural land by the degree of its salinisation was carried out according to the data of the land reclamation cadastre for the period from 1 January 2013 to 1 January 2022. A model of the dynamics of highly and very highly saline areas was built, statistical estimates of the quality of the model were checked, and the average annual rate of increase in the area of saline areas was determined. The most likely causes of salinisation in irrigated areas were analysed. These are high groundwater levels and groundwater salinity, and high salinity of water used for irrigation. An analysis of the most likely causes of salinisation in irrigated areas was carried out, including high groundwater levels and salinity, and high salinity of water used for irrigation. The dynamics of areas with different groundwater levels, different salinities of groundwater and irrigation water are given. Based on the data from the beginning of 2022, a cluster analysis of the regions of the Altai Territory was carried out according to the degree of salinisation of agricultural land. The quality of the clustering was checked.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>мелиорация</kwd><kwd>засоление земель</kwd><kwd>кластерный анализ</kwd><kwd>мелиоративное состояние земель</kwd><kwd>Алтайский край</kwd><kwd>орошение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>melioration</kwd><kwd>salinisation of lands</kwd><kwd>cluster analysis</kwd><kwd>reclamation state of lands</kwd><kwd>the Altai Territory</kwd><kwd>irrigation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование профинансировано программой развития Российского государственного аграрного университета – Московской сельскохозяйственной академии имени К.А. Тимирязева «Агропрорыв‑2030» в рамках программы стратегического академического лидерства «Приоритет‑2030».</funding-statement><funding-statement xml:lang="en">The work was funded by the «Agrobreakthrough‑2030» development programme of Russian State Agrarian University – Moscow Timiryazev Agricultural Academy within the framework of the «Priority‑2030» strategic academic leadership programme.</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">Aadhityaa M., Naganna S.R., Al-Ansari N. Irrigation Induced Salinity and Sodicity Hazards on Soil and Groundwater: An Overview of Its Causes, Impacts and Mitigation Strategies // Agriculture (Switzerland). – 2021. – № 11 (10). – Р. 983. doi:10.3390/agriculture11100983.</mixed-citation><mixed-citation xml:lang="en">Aadhityaa M., Naganna S.R., Al-Ansari N. 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