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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">scbook</journal-id><journal-title-group><journal-title xml:lang="ru">Биология растений и садоводство: теория, инновации</journal-title><trans-title-group xml:lang="en"><trans-title>Plant Biology and Horticulture: theory, innovation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2712-7788</issn><publisher><publisher-name>Federal State Funded Institution of Science “The Labour Red Banner Order Nikitsky Botanical Gardens – National scientific Center of the RAS”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.36305/2019-3-152-5-14</article-id><article-id custom-type="elpub" pub-id-type="custom">scbook-477</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</subject></subj-group></article-categories><title-group><article-title>Особенности водного обмена Juniperus еxcelsa M. Bieb в условиях прогрессирующей почвенной засухи Южного берега Крыма</article-title><trans-title-group xml:lang="en"><trans-title>Water relation features of Juniperus excelsa M. Bieb under progressive soil drought stress of the Soutern Coast of the Crimea</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>Ильницкий</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilnitsky</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Олег Антонович Ильницкий</p><p>298648, Республика Крым, г. Ялта, пгт Никита, Никитский спуск, 52 </p></bio><email xlink:type="simple">ilnitsky.oleg@mail.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>Плугатарь</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Plugatar</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Владимирович Плугатарь</p><p>298648, Республика Крым, г. Ялта, пгт Никита, Никитский спуск, 52 </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>Паштецкий</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pashtetsky</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Владимирович Паштецкий </p><p>298648, Республика Крым, г. Ялта, пгт Никита, Никитский спуск, 52 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Никитский ботанический сад Национальный научный центр РАН</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>17</day><month>02</month><year>2020</year></pub-date><volume>0</volume><issue>152</issue><fpage>5</fpage><lpage>14</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ильницкий О.А., Плугатарь Ю.В., Паштецкий А.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Ильницкий О.А., Плугатарь Ю.В., Паштецкий А.В.</copyright-holder><copyright-holder xml:lang="en">Ilnitsky O.A., Plugatar Y.V., Pashtetsky 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://scbook.elpub.ru/jour/article/view/477">https://scbook.elpub.ru/jour/article/view/477</self-uri><abstract><p>Изучены зависимости динамики интенсивности фотосинтеза, транспирации и температуры хвои Juniperus excelsa М. Bieb при воздействии почвенной засухи и определены оптимальные и ограничивающие условия произрастания данного вида в условиях Южного берега Крыма (ЮБК). Отображение функции отклика фотосинтеза на факторы внешней среды позволило получить численные коэффициенты нелинейных регрессионных уравнений взаимосвязей этих параметров. Оптимальными условиями являются: Wn=65-75% НВ, 1=700-1200 iimol/m2s. Pn=10-12 iimol/m2s. Изменение интенсивности нетто-фотосинтеза и транспирации, нетто-фотосинтеза и устьичной проводимости, диаметра побега и влажности почвы при воздействии почвенной засухи определены при помощи регрессионной статистики: для Е и Pn R=0,90279, R2=0,81522; Рп и gsR=0,9028, R2 =0,8152; dn и WnR=0,9449, R2=0,8929 соответственно. J. Excelsa обладает высоким потенциалом фотосинтеза для акклиматизации к повышенной температуре. Повышение температуры листа (хвои) выше оптимальной приводит к резкому снижению интенсивности фотосинтеза критической является температура 39-40°С. При интродукции этого вида в разные регионы, результаты проведенных исследований позволяют сравнить полученные нами эколого­ физиологические характеристики с климатическими условиями конкретного региона и оценить возможности его выращивания.</p></abstract><trans-abstract xml:lang="en"><p>The dependences of the dynamics of photosynthesis intensity were studied, transpiration and temperature of Juniperus excelsa M. Bieb in the impact of soil drought and determined optimal and limiting conditions of growth of this species under the conditions of the Southern Coast of the Crimea. The display of photosynthesis response function to environmental factors allowed J. Excelsa to obtain numerical coefficients of nonlinear regression equations of these parameters. Optimal conditions are: Ws=65-75% FC, 1=700-1200 mkmol/m2s, Pn=10-12 mkmol/m2s. Changes in the intensity of net-photosynthesis and transpiration, net photosynthesis and estuary conductivity, escape diameter and soil moisture in the influence of soil drought are determined by regression statistics: for E and Pn R=0,90279, R2=0,81522; Pn and gsR=0,9028, R2=0,8152; Pn and gsR=0,9028, R2 =0,8152; dsh and WsR=0,9449, R2=0,8929 respectively. J. Excelsa has a high potential of photosynthesis for acclimatization to elevated temperatures. The increase in the temperature of the leaf (the khvoi) above the optimal leads to a sharp reduction in the intensity of photosynthesis the critical is the temperature of 39-40 degrees Celsius. With the introduction of this species to different regions, the results of the studies allow us to compare the ecological and physiological characteristics we have received with the climatic conditions of a particular region and to assess the possibilities of its cultivation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>водный режим</kwd><kwd>почвенная засуха</kwd><kwd>оптимальные условия</kwd><kwd>эколого-физиологические характеристики</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Juniperus excelsa М. Bieb</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">Анненков А.А., Иванов В.Ф., Хохрин А.В. Акимов Ю.А. Методические рекомендации по изыскательским работам для проектирования объектов озеленения в Крыму. Ялта, 1984. 26 с.</mixed-citation><mixed-citation xml:lang="en">Annenkov A.A., Ivanov V.F., Khokhrin A.V., Akimov Yu.A. 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