Influence of Urbanized Territories on the World River Runoff
https://doi.org/10.31857/S086960712005002X
Abstract
The article considers the influence of urbanized territories (landscapes), including impermeable and poorly permeable areas with reduced infiltration ability, on the average longterm runoff (annual normal flow) of major regions of the world and the world as a whole. Water consumption in these territories is not taken into account. The areas of urbanized territories for the period of calculating the annual normal flow (up to the middle of the 20th century) and modern urbanized territories, as well as their share in the total area of the regions under consideration and in their most inhabited part, were calculated. The current (after the middle of the 20th century) annual normal flow increase in the most habitable part of these regions and the total runoff increase due to the extension of urbanized territories and their state transition are estimated. The total runoff formed on the area of urbanized territories is determined. The calculations showed that urbanization of landscapes is an important factor of the runoff increase. The world river runoff formed in urban areas is estimated in many hundreds of km3 per year, however its share in the annual normal flow of the regions under consideration shows that the influence of urbanized territories is relatively small. A rough estimate is given of a possible increase in runoff in the future as a result of the urbanization areas growth.
About the Authors
N. I. Koronkevich
Institute of Geography Russian Academy of Sciences
Russian Federation
Russian Federation
E. A. Barabanova
Institute of Geography Russian Academy of Sciences
Russian Federation
Russian Federation
K. S. Mel’nik
Institute of Geography Russian Academy of Sciences
Russian Federation
Russian Federation
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For citations:
Koronkevich N.I., Barabanova E.A., Mel’nik K.S. Influence of Urbanized Territories on the World River Runoff. Proceedings of the Russian Geographical Society. 2020;152(5):59-68. (In Russ.) https://doi.org/10.31857/S086960712005002X
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