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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">10.18470/1992-1098-2026-1-12</article-id><article-id custom-type="elpub" pub-id-type="custom">ecodag-3650</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>Классификация типов подземных вод в районе Пакокку в центральной части Мьянмы</article-title><trans-title-group xml:lang="en"><trans-title>Classification of groundwater types in Pakokku district in central Myanmar</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-6252-9880</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Со</surname><given-names>М. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Soe</surname><given-names>M. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мин О. Со - аспирант, гидрогеологический факультет.</p><p>117485 Москва, ул. Миклухо-Маклая, д. 23. Тел. +79855210116</p></bio><bio xml:lang="en"><p>Min O. Soe - PhD student, Hydrogeological Faculty.</p><p>23 Miklukho-Maklaya St, Moscow, 117485. Tel. +79855210116</p></bio><email xlink:type="simple">minnoaksoe95@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2442-9050</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Боронина</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Boronina</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Людмила В. Боронина</p><p>Москва</p></bio><bio xml:lang="en"><p>Liudmila V. Boronina</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-5105-4627</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белов</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Belov</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин В. Белов</p><p>Москва</p></bio><bio xml:lang="en"><p>Konstantin V. Belov</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рабазанов</surname><given-names>Н. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Rabazanov</surname><given-names>N. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нухкади И. Рабазанов</p><p>Махачкала</p></bio><bio xml:lang="en"><p>Nukhadi I. Rabazanov</p><p>Makhachkala</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сокольский</surname><given-names>А. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokolsky</surname><given-names>A. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аркадий Ф. Сокольский</p><p>Астрахань</p></bio><bio xml:lang="en"><p>Arkady F. Sokolsky</p><p>Astrakhan</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-1971-3852</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Волошин</surname><given-names>В. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Voloshin</surname><given-names>V. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валерий Р. Волошин</p><p>Москва</p></bio><bio xml:lang="en"><p>Valery R. Voloshin</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский государственный геологоразведочный университет имени Серго Орджоникидзе</institution></aff><aff xml:lang="en"><institution>Sergo Ordzhonikidze Russian State University for Geological Prospecting</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский Московский государственный строительный университет</institution></aff><aff xml:lang="en"><institution>Moscow State University of Civil Engineering (National Research University)</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Прикаспийский институт биологических ресурсов Дагестанский федеральный исследовательский центр РАН; Дагестанский государственный университет</institution></aff><aff xml:lang="en"><institution>Caspian Institute of Biological Resources, Dagestan Federal Research Centre, Russian Academy of Sciences; Dagestan State University</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Астраханский государственный архитектурно-строительный университет</institution></aff><aff xml:lang="en"><institution>Astrakhan State University of Architecture and Civil Engineering</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>13</day><month>05</month><year>2026</year></pub-date><volume>21</volume><issue>1</issue><fpage>138</fpage><lpage>154</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Со М.О., Боронина Л.В., Белов К.В., Рабазанов Н.И., Сокольский А.Ф., Волошин В.Р., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Со М.О., Боронина Л.В., Белов К.В., Рабазанов Н.И., Сокольский А.Ф., Волошин В.Р.</copyright-holder><copyright-holder xml:lang="en">Soe M.O., Boronina L.V., Belov K.V., Rabazanov N.I., Sokolsky A.F., Voloshin V.R.</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/3650">https://ecodag.elpub.ru/ugro/article/view/3650</self-uri><abstract><p>Целью исследования было проведение гидрогеологической и гидрохимической оценки подземных вод в районе Пакокку (Центральная Мьянма) для классификации их типов и определения пригодности для орошения сельскохозяйственных земель.</p><p>Проанализированы пробы подземных вод из 17 буровых скважин, приуроченных к аллювиальным и ирраваддийским водоносным горизонтам. Полевые параметры (pH, температура, электропроводность (EC), общее содержание растворённых веществ (TDS)) измерялись in situ, а концентрации основных ионов определялись стандартными лабораторными методами. Гидрохимические фации интерпретировались с использованием диаграмм Пайпера и Чадхи, тогда как пригодность для орошения оценивалась на основе индексов (SAR, SSP, RSBC, MAR, PS, KR, PI), а также диаграмм Ричардса и Уилкокса.</p><p>Выявлены два водоносных горизонта: аллювиальный и иравадийский. Преобладает тип воды Ca-Mg-Cl-SO₄ (82 % проб), с небольшими примесями Ca-Mg-HCO₃ и Ca-Mg-SO₄, что подтверждает жесткость воды и отсутствие остаточного карбоната натрия, что благоприятно для орошения. Электропроводность воды (EC) варьируется от 480 до 1100 мкСм/см, а коэффициент адсорбции натрия (SAR) составляет 0,99–2,04. По диаграммам Ричардса вода в основном относится к категориям C2-S1 и C3-S1, что указывает на низкий риск натриевой опасности, но на среднюю или высокую соленость. Оценка других параметров (SSP, RSBC, MAR, PS, KR, PI) показала, что 14 из 17 проб пригодны для орошения. Три проба (РПК-3, РПК-9, РПК-17) признаны непригодными из-за высоких показателей солености и магния.</p><p>Подземные воды региона преимущественно пресные, с умеренной минерализацией, подходят для сельского хозяйства при контроле за минерализацией и выборе солеустойчивых культур.</p></abstract><trans-abstract xml:lang="en"><p>This study aimed to undertake a comprehensive hydrogeological and hydrochemical assessment of groundwater in the Pakokku area, Central Myanmar, to classify water types, identify dominant hydrochemical facies and evaluate suitability for irrigation under arid conditions.</p><p>Groundwater samples from 17 bore wells, representing alluvial and Irrawaddy aquifers, were analysed. Field parameters (pH, temperature, EC, TDS) were measured in situ, and major ions were determined using standard laboratory methods. Hydrochemical facies were interpreted using Piper and Chadha diagrams, while irrigation suitability was assessed through indices (SAR, SSP, RSBC, MAR, PS, KR, PI) and Richards and Wilcox diagrams.</p><p>Results indicate two dominant facies: Ca–Mg–Cl–SO₄ and Ca–Mg–HCO₃, with 82% of samples belonging to the former, reflecting carbonate and silicate weathering. EC ranges from 480–1100 μS/cm and TDS from 310– 715 ppm, indicating fresh to slightly mineralised water. SAR values (0.99– 2.04) and SSP (&lt;40%) classify most samples as excellent to good. Most waters fall within C2–S1 and C3–S1 fields, showing moderate salinity and low sodium hazard.</p><p>Overall, the groundwater of 14 of 17 samples is suitable for irrigation, while three show elevated salinity or magnesium hazard. Groundwater in general is assessed as fresh, stable and suitable for sustainable agricultural use with proper salinity management.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гидрогеохимия</kwd><kwd>качество подземной воды</kwd><kwd>диаграмма Пайпера</kwd><kwd>диаграмма Чадха</kwd><kwd>коэффициент адсорбции натрия (SAR)</kwd><kwd>индекс проницаемости (PI)</kwd><kwd>коэффициент адсорбции магния (MAR)</kwd><kwd>потенциальная соленость (PS)</kwd><kwd>центральная Мьянма</kwd><kwd>район Пакокку</kwd><kwd>формация Иравади</kwd><kwd>аллювиальный водоносный горизонт</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Groundwater classification</kwd><kwd>hydrogeochemistry</kwd><kwd>irrigation water quality</kwd><kwd>Piper diagram</kwd><kwd>Chadha diagram</kwd><kwd>sodium adsorption coefficient (SAR)</kwd><kwd>permeability index (PI)</kwd><kwd>magnesium adsorption coefficient (MAR)</kwd><kwd>potential salinity (PS)</kwd><kwd>central Myanmar</kwd><kwd>Pakokku</kwd><kwd>Irrawaddy Formation</kwd><kwd>alluvial aquifer</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">Zaw T., Than M.M. 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