Current Features and Dynamics of Nutrient Balance in the Kud’ma River Basin. 2. Seasonal Removal of Nitrogen and Phosphorusстатья
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Дата последнего поиска статьи во внешних источниках: 23 сентября 2021 г.
Аннотация:The Kud’ma River, a tributary of the Cheboksary Reservoir, has been studied to evaluate the contributions of the surface and subsurface runoff components and perched groundwater runoff to the diffuse export of mineral nitrogen and phosphorus from river catchment areas in the northern part of the foreststeppe zone in the Volga basin. The role of water balance elements in the removal of nutrients has been shown to vary considerably both from season to season and in the long-term aspect. The proportions of the atmospheric and landscape components in the balance have been determined. The nutrient runoff has been shown to increase considerably in the recent years because of the greater role of new hydroclimatic conditions, especially, an increase in the runoff of infiltration origin (groundwater and perched water). Promising lines of further studies of nutrient removal from river catchments are proposed.