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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">hydrophysics</journal-id><journal-title-group><journal-title xml:lang="ru">Фундаментальная и прикладная гидрофизика</journal-title><trans-title-group xml:lang="en"><trans-title>Fundamental and Applied Hydrophysics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-6673</issn><issn pub-type="epub">2782-5221</issn><publisher><publisher-name>St. Petersburg Research Center of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.59887/2073-6673.2024.17(2)-4</article-id><article-id custom-type="elpub" pub-id-type="custom">hydrophysics-1324</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>ГИДРОФИЗИЧЕСКИЕ И БИОГЕОХИМИЧЕСКИЕ ПОЛЯ И ПРОЦЕССЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>HYDROPHYSICAL AND BIOGEOCHEMICAL FIELDS AND PROCESSES</subject></subj-group></article-categories><title-group><article-title>Сценарный анализ социально-экономических и климатических изменений нагрузки и удержания биогенных веществ в водосборе реки Преголи (Юго-Восточная Балтика): взгляд на начало XXI века</article-title><trans-title-group xml:lang="en"><trans-title>Scenario Analysis of Socio-Economic and Climate Related Changes in Nutrient Load and Retention for the Pregolya River Catchment (South-Eastern Baltic): The View at the Beginning of 21st Century</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7988-1717</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чубаренко</surname><given-names>Б. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chubarenko</surname><given-names>B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117997, Москва, Нахимовский проспект, д. 36</p></bio><bio xml:lang="en"><p>Chubarenko Boris, Head of Laboratory for coastal systems study, Cand.Sc. (Phys.-Math.)</p><p>36 Nakhimovsky Prosp., Moscow 117997</p></bio><email xlink:type="simple">chuboris@mail.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/0000-0002-6239-1794</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горбунова</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorbunova</surname><given-names>J.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117997, Москва, Нахимовский проспект, д. 36</p></bio><bio xml:lang="en"><p>Gorbunova Julia, researcher, Cand.Sc. (Biol.)</p><p>36 Nakhimovsky Prosp., Moscow 117997</p></bio><email xlink:type="simple">julia_gorbunova@mail.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/0000-0001-8627-2055</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Домнин</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Domnin</surname><given-names>D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117997, Москва, Нахимовский проспект, д. 36</p></bio><bio xml:lang="en"><p>Domnin Dmitry, senior researcher, Cand.Sc. (Geogr.)</p><p>36 Nakhimovsky Prosp., Moscow 117997</p></bio><email xlink:type="simple">dimanisha@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт океанологии им. П.П. Ширшова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Shirshov Institute of Oceanology, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>21</day><month>07</month><year>2024</year></pub-date><volume>17</volume><issue>2</issue><fpage>35</fpage><lpage>49</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чубаренко Б.В., Горбунова Ю.А., Домнин Д.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Чубаренко Б.В., Горбунова Ю.А., Домнин Д.А.</copyright-holder><copyright-holder xml:lang="en">Chubarenko B., Gorbunova J., Domnin D.</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://hydrophysics.spbrc.ru/jour/article/view/1324">https://hydrophysics.spbrc.ru/jour/article/view/1324</self-uri><abstract><p>В ходе исследования был проанализирован трансграничный водосборный бассейн реки Преголи, охватывающий как польскую, так и российскую части, с использованием гидрологического модуля HYPE и модели расчета нагрузок и удержания биогенных веществ FyrisNP. Результаты выявили значительные пространственные различия в характеристиках удержания биогенных веществ. Оценка данных показывает, что в начале XXI века биогенная нагрузка из польской части водосбора значительно выше, чем из российской части. Моделирование, основанное на климатических прогнозах на 2041–2060 гг., но с учетом нынешней нагрузки по биогенным веществам, показало значительный уровень неопределенности в изменениях экспорта биогенных веществ в Балтийское море. Диапазон для общего азота составлял от –10 % до +27 %, а для общего фосфора — от –29 % до –10 %. Модельные расчёты, основанные на различных социально-экономических сценариях и текущих климатических условиях, показали, что при сохранении нынешних тенденций экспорт биогенных веществ увеличится лишь незначительно (3 % для общего азота и общего фосфора). Если планы социально-экономического роста польских и российских органов местного самоуправления будут реализованы, включая расширение сельского хозяйства в Калининградской области, произойдет значительный рост экспорта биогенных веществ (78 % для азота общего и 55 % для фосфора общего).</p></abstract><trans-abstract xml:lang="en"><p>The study analysed the transboundary Pregolya River Catchment, covering both the Polish and Russian parts, using the HYPE hydrological module and FyrisNP emission-retention model. The results revealed significant spatial variations in nutrient retention. The data assessment indicates that, at the start of the 21st century, the nutrient load from the Polish part of the catchment is significantly greater than that from the Russian part. Model simulations based on climatic projections for the years 2041–2060, but with current nutrient loads, showed a significant level of uncertainty in the changes of nutrient export to the Baltic Sea. The range for total nitrogen was –10 % to +27 %, and for total phosphorus it was –29 % to –10 %. Model simulations based on different socio-economic scenarios, but current climate conditions, showed that if present 5-year trends are maintained, nutrient export will only increase slightly (3 % for total nitrogen and total phosphorus). If the plans for socio-economic growth of Polish and Russian local governments are implemented, including the expansion of agriculture in Kaliningrad Oblast, there will be a significant increase in nutrient export (78 % for total nitrogen and 55 % for total phosphorus).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>биогенная нагрузка</kwd><kwd>водосбор</kwd><kwd>моделирование сценариев</kwd><kwd>изменение климата</kwd><kwd>река Преголя</kwd><kwd>Балтийское море</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nutrient load</kwd><kwd>catchment</kwd><kwd>scenario modelling</kwd><kwd>climate change</kwd><kwd>Pregolya River</kwd><kwd>Baltic Sea</kwd></kwd-group><funding-group><funding-statement xml:lang="en">Data collection and its primary analysis was carried out within the international BONUS SOILS2SEA project 2014–2017 (www.Soils2Sea.eu), and financially supported by the grant 14-05-91730-BONUSа of the Russian Foundation for Basic Research. The final analysis and preparation of the paper were made with support of State Assignment of the Institute of Oceanology, Russian Academy of Sciences (theme No. FMWE‑2024-0025).</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">Горбунова Ю.А., Чубаренко Б.В., Домнин Д.А. Биогенная нагрузка на водосборный бассейн реки Преголи от антропогенных источников // Известия КГТУ. 2017. № 47. С. 34–45.</mixed-citation><mixed-citation xml:lang="en">Gorbunova J.A., Chubarenko B.V., Domnin D.A. Nutrient load on the catchment area of the Pregolya River from anthropogenic sources. Kaliningrad State Technical University News (Izvestia KGTU). 2017, 47, 34–45. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Зотов С.И. Моделирование состояния геосистем: моногр. 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