Open AccessCURRENT STATE OF HYDROLOGICAL AND HYDROCHEMICAL REGIME OF THE RIVER ESYLE
Author(s) -
Azis V. Shutkaraev,
G.K. Barinova,
A. Asylbekova
Publication year - 2020
Publication title -
chronos journal
Language(s) - English
Resource type - Journals
ISSN - 2658-7556
DOI - 10.31618/2658-7556-2020-1
Subject(s) - rainwater harvesting , hydrology (agriculture) , drainage basin , meltwater , surface runoff , environmental science , river regime , current (fluid) , human settlement , geology , sediment , geography , glacier , physical geography , oceanography , geomorphology , ecology , geotechnical engineering , cartography , biology , archaeology
This article discusses the features of the hydrological and hydrochemical regime of the Yessil river, as a transboundary river of the Republic of Kazakhstan and the Russian Federation. In General, the hydrological regime of the Yessil river is acceptable for most freshwater fish species. The maximum permissible concentration for fishery reservoirs is exceeded annually for the entire length of the river in terms of ion content only for sulfates from 1.1 to 1.7 times. The main pollutants of the Yessil river are storm runoff from the territories of settlements, as well as mineral and organic fertilizers washed away by meltwater and rainwater from catchment areas.