Pudomyagi, St. Petersburg, Russian Federation
Saint_Petersburg, St. Petersburg, Russian Federation
Saint-Petersburg, St. Petersburg, Russian Federation
Saint-Petersburg, St. Petersburg, Russian Federation
Saint-Petersburg, St. Petersburg, Russian Federation
UDK 631.95 Сельскохозяйственная экология
UDK 55 Геология. Геологические и геофизические науки
UDK 550.34 Сейсмология
UDK 550.383 Главное магнитное поле Земли
GRNTI 37.01 Общие вопросы геофизики
GRNTI 37.15 Геомагнетизм и высокие слои атмосферы
GRNTI 37.25 Океанология
GRNTI 37.31 Физика Земли
GRNTI 38.01 Общие вопросы геологии
GRNTI 36.00 ГЕОДЕЗИЯ. КАРТОГРАФИЯ
GRNTI 37.00 ГЕОФИЗИКА
GRNTI 38.00 ГЕОЛОГИЯ
GRNTI 39.00 ГЕОГРАФИЯ
GRNTI 52.00 ГОРНОЕ ДЕЛО
OKSO 05.00.00 Науки о Земле
BBK 26 Науки о Земле
TBK 63 Науки о Земле. Экология
BISAC SCI SCIENCE
The study aimed to assess the possible reduction of the nutrient load and nitrogen and phosphorus losses from the Russian part of the Irtysh River catchment, one of our country’s largest transboundary rivers, by implementing the best available techniques (BAT) in agricultural production. The Institute of Limnology Load Model (ILLM) mathematical model of nutrient load on the river watershed was used to solve the problem. Information on the primary sources of the nutrient load was collected for the entire Russian part of the Irtysh River catchment and tributaries catchments: Om, Ishim, Tobol, and Konda rivers. Agricultural activity of more than 800 enterprises concentrated mainly in the southern part of the Russian basin was analyzed. The calculations show that the most significant reduction of agricultural nutrient load due to BAT implementation is achieved in the Russian part of the catchment area of the Tobol River (31% for nitrogen and 25% for phosphorus from the total load on the catchment). The nutrient load can be reduced by 23% of nitrogen and 18% of phosphorus due to BAT implementation from the entire catchment of the Irtysh River (Russian part), which will lead to a corresponding reduction in a nutrient run-off by 13% of nitrogen and 4% of phosphorus. Therefore, a significant decrease in nutrient transport by river flow cannot be expected. However, it is essential to confirm the possibility of nutrient load reduction through the implementation of BAT, aiming at the transition to modern production technologies by minimizing the impact on the environment and maintaining the economic efficiency of agricultural production.
nutrient load, modeling, river basin, best available techniques
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