hydrophysicsФундаментальная и прикладная гидрофизикаFundamental and Applied Hydrophysics2073-66732782-5221St. Petersburg Research Center of the Russian Academy of Sciences10.7868/S2073667319020096hydrophysics-59Research ArticleГИДРОФИЗИЧЕСКИЕ И БИОГЕОХИМИЧЕСКИЕ ПОЛЯ И ПРОЦЕССЫHYDROPHYSICAL AND BIOGEOCHEMICAL FIELDS AND PROCESSESБиогенная нагрузка с российской территории на Финский заливNutrient Load from the Russian Territory on the Gulf of FinlandКондратьевС. А.KondratyevS. A.

Санкт-Петербург

St.-Petersburg

kondratyev@limno.org.ruЕршоваА. А.ErshovaA. A.

Санкт-Петербург

St.-Petersburg

ЭкхольмП.EkholmP.

Хельсинки

Helsinki

ВиктороваН. В.VictorovaN. V.

Санкт-Петербург

St.-Petersburg

Институт озероведения РАНРоссияInstitute of Limnology, Russian Academy of SciencesRussian FederationРоссийский государственный гидрометеорологический университетРоссияRussian State Hydrometeorological UniversityRussian FederationФинский институт окружающей средыФинляндияFinnish Environment InstituteFinland2019291120211227787Copyright © Кондратьев С.А., Ершова А.А., Экхольм П., Викторова Н.В., 20212021Кондратьев С.А., Ершова А.А., Экхольм П., Викторова Н.В.Kondratyev S.A., Ershova A.A., Ekholm P., Victorova N.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://hydrophysics.spbrc.ru/jour/article/view/59

Установление целевых показателей сокращения биогенной нагрузки на Балтийское море и мониторинг выполнения этих целей требует достоверной информации о количестве биогенных веществ, поступающих с  территории всех стран Финского залива. Целью исследования было оценить поступление общего азота и общего фосфора с российской территории в Финский залив – один из самых эвтрофированных подбассейнов Балтийского моря. Оценка биогенной нагрузки проводилась на основе доступных данных наблюдений и статистических данных, данных математического моделирования и данных дополнительного мониторинга в  ранее неконтролируемых областях. Представлены и проанализированы новые данные о поступлении биогенных веществ на небольших неконтролируемых притоках Финского залива. Показано, что для выполнения рекомендаций по снижению уровня питательных веществ согласно Плану действий ХЕЛКОМ по Балтийскому морю для Финского залива необходимо дальнейшее сокращение поступления общего азота на 2084 т/год и общего фосфора на 202 т/год со стороны России. Представлены предложения по улучшению российской системы мониторинга.

Setting nutrient load reduction targets for the Baltic Sea, and monitoring whether these targets have been met, calls for reliable information on the nutrient load from all the surrounding countries. The objective of this study was to estimate the loading of Ntot and Ptot from the Russian territory on the Gulf of Finland, one of the most eutrophied subbasins of the Baltic Sea. The nutrient load assessment was based on available monitoring data and statistics, mathematical modelling and additional sampling in the previously unmonitored areas. New data on nutrient loads at the small unmonitored rivers of the Gulf of Finland immediate catchment are presented and discussed. The data compilation showed that in order to fulfil the nutrient abatement recommendations of the HELCOM Baltic Sea Action Plan for the Gulf of Finland, a further reduction of 2084 t of N/a and 202 t of P/a from Russia is needed. Suggestions to improve Russian load monitoring system are given.

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The authors declare that there are no conflicts of interest present.