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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">melio</journal-id><journal-title-group><journal-title xml:lang="ru">Мелиорация</journal-title><trans-title-group xml:lang="en"><trans-title>Land Reclamation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2070-4828</issn><publisher><publisher-name>Институт мелиорации</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">melio-253</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>ВОПРОСЫ ЭКОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>QUESTIONS OF ECOLOGY</subject></subj-group></article-categories><title-group><article-title>МИГРАЦИЯ НИТРАТОВ ПО ПОЧВЕННОМУ ПРОФИЛЮ</article-title><trans-title-group xml:lang="en"><trans-title>Nitrate migration in soil profile</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кинчюс</surname><given-names>Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kinchus</surname><given-names>L. ..</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поцене</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Potsene</surname><given-names>A. ..</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поцюс</surname><given-names>C.</given-names></name><name name-style="western" xml:lang="en"><surname>Potsus</surname><given-names>S. ..</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Литовский сельскохозяйственный университет</institution></aff><aff xml:lang="en"><institution>Lithuanian Agricultural University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2007</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2007</year></pub-date><volume>0</volume><issue>2</issue><fpage>140</fpage><lpage>146</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кинчюс Л..., Поцене А..., Поцюс C..., 2007</copyright-statement><copyright-year>2007</copyright-year><copyright-holder xml:lang="ru">Кинчюс Л., Поцене А., Поцюс C.</copyright-holder><copyright-holder xml:lang="en">Kinchus L..., Potsene A..., Potsus 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://melio.belal.by/jour/article/view/253">https://melio.belal.by/jour/article/view/253</self-uri><abstract><p>Загрязнение поверхностных и подземных вод нитратами - одна из основных проблем охраны природы. В Литве количество осадков значительно превышает испарение, что способствует установлению в почве промывного режима, при котором происходит процесс выщелачивания солей из почвенного профиля и вынос их за пределы мелиорируемого участка. Легко вымывается азот в нитратной форме, так как он не закрепляется почвой. Исследования динамики миграции нитратов в почвенных монолитах ненарушенной структуры в зависимости от водного режима почвы показали, что при оптимальной почвенной влаге происходит диффузия нитратов, при этом миграция нитратов происходит до 30 раз медленнее, чем при конвективном переносе вещества.</p></abstract><trans-abstract xml:lang="en"><p>The contamination of surface and underground water with nitrates is one of the main concerns in nature protection. In the Lithuania the rainfall exceeds significantly the evaporation contributing to soil rinsing and consequently the process of salt leaching of the soil profile and salt production over reclamation area. Nitrogen is lightly washed out as nitrate due to lack of resistance in soil. The investigations of the dynamics of nitrate migration in cores of the original structure evidenced subject to water relationship of soil nitrate diffusion under the utmost soil water conditions, and nitrate migration is 30 time slower than under convective transport of substances.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>концентрация нитратов</kwd><kwd>миграция</kwd><kwd>динамика</kwd><kwd>почвенный профиль</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">Dobkevičius M, 2001. Hidrogeodinamika. Enciklopedija, - 359 p</mixed-citation><mixed-citation xml:lang="en">Dobkevičius M, 2001. Hidrogeodinamika. Enciklopedija, - 359 p</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Kučinskas J., Pekarskas J., 1999. 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