Hydrological regime of the transboundary Uldza River and terminal Torey Lakes under conditions of anthropogenic impact
https://doi.org/10.18470/1992-1098-2022-4-140-152
Abstract
Aim. Assess the change in the hydrological regime of the Torey Lakes based on a probabilistic forecast of the parameters of the water balance of these reservoirs, taking into account anthropogenic influence.
Material and Methods. The study used materials from the state observation network of Roshydromet, Earth remote sensing data, research materials from scientific organisations and other sources of information that are in the public domain. Methods of statistical data analysis, mathematical modeling, hydrological calculations, including the water balance method and methods of processing and decoding satellite information were used.
Results. With the implementation of the planned water management project, accompanied by additional non‐returnable water consumption in Mongolia, the consequences for the water regime of the Torey Lakes can be significant, especially in the low‐water phase of the water cycle, when the level decrease in the Barun‐Torey Lake will average 70 cm and in Zun‐ Torey – 80 cm. Through this project, the faster drying of the lakes, on average 2–3 years earlier, will be avoided.
Conclusions. The ecological systems of the Dauria region are characterized by a process of cyclic succession and are mainly adapted to the contemporary climatic moisture cycle. For these ecosystems, any changes in external factors are fundamentally important, since they can lead to the irreversibility of natural processes. Based on the results obtained in this study, it is possible to conduct a comprehensive analysis of the anthropogenic impact on the state of the Torey Lakes and nearby ecosystems.
Keywords
Torey lakes,
water balance of lakes,
terminal reservoirs,
long‐term fluctuations,
transboundary river,
Uldza river
Supporting agencies: The results of the study were obtained with the support of the Russian‐Chinese grant of the Russian Foundation for Basic Research No. 21‐55‐53017 "Linkages between surface‐groundwater interaction and riparian evapotranspiration processes under climate variability: a comparative analysis between arid and humid environments" and published with the support of the RGS grant "International Conference" Transboundary Geoecological Problems and Issues of Nature Management in the Basin of the Rivers of Inner Eurasia in Connection with Climate Change.
About the Authors
M. A. Kashnitskaya
Planeta Scientific‐Research Centre for Space Hydrometeorology
Russian Federation
Competing Interests:
Russian Federation
Marina A. Kashnitskaya, Academic Secretary
7 Bolshoy Predtechensky St, Moscow 123242
Tel. +74992520356
Competing Interests:
The author declares no conflict of interest.
M. V. Bolgov
Water Problems Institute, Russian Academy of Sciences
Russian Federation
Competing Interests:
Russian Federation
Mikhail V. Bolgov
Moscow
Competing Interests:
The author declares no conflict of interest.
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For citations:
Kashnitskaya M.A., Bolgov M.V. Hydrological regime of the transboundary Uldza River and terminal Torey Lakes under conditions of anthropogenic impact. South of Russia: ecology, development. 2022;17(4):140‐152. (In Russ.) https://doi.org/10.18470/1992-1098-2022-4-140-152
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