IMPACT OF CLIMATE CHANGE AND ANTHROPOGENIC FACTORS ON THE RUNOFF OF THE ERTIS RIVER
Baspakova G.R. Alimkulov S.K. Sarkynov E.S. Tursunova A.A. Zagidullina A.R. Saparova A.A. Kulebayev K.M.
2022National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2022#2022Issue 56 - 22 pp.
The article examines the current change in renewable water resources of the Еrtis River basin, taking into account regional climatic and anthropogenic impacts. The study of the river flow of the transboundary Ertis River is extremely important for interstate cooperation of 3 neighboring countries regarding the joint use and protection of water resources. The flow of the Еrtis River has a huge impact on the socio-economic development of the Republic of Kazakhstan, as it is the main source of water for the northeastern and eastern parts of the country. The main goal of the authors is to study long-term trends in runoff changes, taking into account climatic and anthropogenic loads in order to develop scientifically justified strategies for sustainable management and protection of water resources of the Ertis transboundary river basin. The results of assessments taking into account climate change show that since 1973 there has been an increase in river flow at gauging stations located in runoff formation zones in mountainous areas, and a decrease in runoff located in the flat part of the basin in the dispersion zone. When assessing anthropogenic factors on river runoff, the method of hydrological analogy, the method of water balance and statistical data on the coefficient of water withdrawal of non-returnable water consumption were used. In general, the assessment of the anthropogenic impact on the basin of the river Ertis shows a decrease in total runoff by 6.08 km3, i.e. by 16.9% of the climatically determined runoff.
air temperature , anthropogenic activity , climate change , precipitation , river runoff
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Institute of Geography and Water Security, Almaty, Kazakhstan
Kazakh National Agrarian Research University, Almaty, Kazakhstan
Institute of Geography and Water Security
Kazakh National Agrarian Research University
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