п. Пудомяги, г. Санкт-Петербург и Ленинградская область, Россия
Санкт-Петербург, г. Санкт-Петербург и Ленинградская область, Россия
Санкт-Петербург, г. Санкт-Петербург и Ленинградская область, Россия
Санкт-Петербург, г. Санкт-Петербург и Ленинградская область, Россия
Санкт-Петербург, г. Санкт-Петербург и Ленинградская область, Россия
УДК 631.95 Сельскохозяйственная экология
УДК 55 Геология. Геологические и геофизические науки
УДК 550.34 Сейсмология
УДК 550.383 Главное магнитное поле Земли
ГРНТИ 37.01 Общие вопросы геофизики
ГРНТИ 37.15 Геомагнетизм и высокие слои атмосферы
ГРНТИ 37.25 Океанология
ГРНТИ 37.31 Физика Земли
ГРНТИ 38.01 Общие вопросы геологии
ГРНТИ 36.00 ГЕОДЕЗИЯ. КАРТОГРАФИЯ
ГРНТИ 37.00 ГЕОФИЗИКА
ГРНТИ 38.00 ГЕОЛОГИЯ
ГРНТИ 39.00 ГЕОГРАФИЯ
ГРНТИ 52.00 ГОРНОЕ ДЕЛО
ОКСО 05.00.00 Науки о Земле
ББК 26 Науки о Земле
ТБК 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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