Open AccessMany-year Fluctuations of River Runoff in South-taiga Subzone of the Western Siberia
Author(s) -
Yulia A. Kharanzhevskaya
Publication year - 2013
Publication title -
vodnoe hozâjstvo rossii: problemy, tehnologii, upravlenie/vodnoe hozâjstvo rossii : problemy, tehnologii, upravlenie
Language(s) - English
Resource type - Journals
eISSN - 2686-8253
pISSN - 1999-4508
DOI - 10.35567/1999-4508-2013-3-3
Subject(s) - surface runoff , tributary , taiga , hydrology (agriculture) , environmental science , precipitation , drainage basin , surface water , structural basin , boreal , groundwater , streamflow , physical geography , climatology , geography , geology , forestry , meteorology , geomorphology , ecology , geotechnical engineering , biology , cartography , archaeology , environmental engineering
A detailed analysis of river flow long-term changes in the Southern taiga subzone of Western Siberia has been carried out with the Chaya River basin as an example. Causal statistical analysis of changes in groundwater levels, bog water level, air temperature and atmospheric precipitation has been performed. The conducted studies revealed a statistically significant trend in the increase of surface runoff in the winter low flow of the Chaya River and its large tributaries (the Iksa and the Parbig), as well as the underground runoff component for virtually the entire year. An ambiguous regularity has been observed in the change of the level regime of rivers. The main reason for the observed changes in the water regime of the said territory is the redistribution of atmospheric moisture and shifting of the boundaries of hydrological seasons.