Current Features and Dynamics of Nutrient Balance in the Kud’ma River Basin. 1. Annual Nutrient Balance

The main components of the annual water and nutrient balance are determined for the basin of the Kud’ma River, which has a landscape structure typical of the southern part of the forest zone. The contribution of the natural and anthropogenic factors to nutrient inputs into the Kud’ma River and their...

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Bibliographic Details
Published in:Water resources 2020-03, Vol.47 (2), p.238-248
Main Authors: Dolgov, S. V., Koronkevich, N. I.
Format: Article
Language:English
Subjects:
Animal wastes
Annual
Anthropogenic factors
Aquatic Pollution
Catchment area
Catchment areas
Components
Earth and Environmental Science
Earth Sciences
Exports
Hydrobiology: Environmental Aspects
Hydrochemistry
Hydrogeology
Hydrology/Water Resources
Mineral nutrients
Nutrient balance
Nutrient dynamics
Organic wastes
Phosphorus
River basins
River catchments
River discharge
River flow
River runoff
Rivers
Runoff
Surface runoff
Waste Water Technology
Water Management
Water Pollution Control
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Summary:The main components of the annual water and nutrient balance are determined for the basin of the Kud’ma River, which has a landscape structure typical of the southern part of the forest zone. The contribution of the natural and anthropogenic factors to nutrient inputs into the Kud’ma River and their export from the catchment area is estimated. It is shown that forest tree waste is among the major natural factors of nutrient input into the Kud’ma River catchment area, while animal wastes are among anthropogenic factors. Nutrient export with river runoff, including its surface and underground components, is evaluated. It is found that the export of nitrogen and phosphorus from the catchment area has increased considerably in the recent years because of changes in the hydroclimatic conditions, which have caused a decrease in the surface runoff component and a considerable increase in its underground component.
ISSN:0097-8078
1608-344X
DOI:10.1134/S0097807820020037