Methodological Foundations for Assessing the Water Management Balance of Water Bodies in the Tobyl River Basin
Nugmanov A.B. Moldakhmetov M.M. Мakhmudova L.K. Yskak A. Chashkov V.N. Kuanyshbayev S.B. Joldassov A.A.
Jan-Feb 2025Unique Scientific Publishers
International Journal of Agriculture and Biosciences
2025#14Issue 131 - 39 pp.
The study estimates the water and water management balance of the Tobyl River basin in the Kostanay region, Kazakhstan in the context of non-stationary climate and river flow conditions. The research aims to determine the current deficit and surplus of water resources to develop recommendations on regional water supply needs, especially for urban territories and agricultural sectors. Hydrometeorological data from regional monitoring stations were analyzed using probabilistic statistical methods. The Mann-Kendall test is applied to assess long-term trends in river flow. A comprehensive water balance model is developed for the reservoirs of the Tobyl River. The study shows statistically significant upward trends in water consumption at the Tobyl-Kostanay and Tobyl-Grishenka stations from 1972 to 2021. The developed water management balance indicates that in average and high-water years, the Tobyl River reservoirs accumulate water, and low-water years (95% non-exceedance probability) are marked by water shortage. Evaporation accounts for a significant share of water losses in the reservoir system, especially in low-water years. The findings underscore the urgent need for advanced water-saving methods and adaptive water resource management strategies to mitigate the consequences of water shortage, especially in low-water years. To ensure a stable water supply in the region, it is recommended to strengthen the coordination of transboundary water resources use and employ technological solutions.
Water balance , Water management balance , Water management complex
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A. Baitursynov Kostanay Regional University, Kostanay, Kazakhstan
Sherkhan Murtazy International Taraz Innovation Institute, Taraz, Kazakhstan
Institute of Geography and Water Security of the Republic of Kazakhstan, Almaty, Kazakhstan
K.I. Satpayev Kazakh National Research Technical University, Almaty, Kazakhstan
A. Baitursynov Kostanay Regional University
Sherkhan Murtazy International Taraz Innovation Institute
Institute of Geography and Water Security of the Republic of Kazakhstan
K.I. Satpayev Kazakh National Research Technical University
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