CHANGES IN WATER POLLUTION IN THE KARATAL RIVER DURING GLACIER SHRINKAGE IN THE SHYZHY AND KORA RIVER BASINS
DOI:
https://doi.org/10.54668/2789-6323-2026-123-3-142-152Keywords:
Shyzhy River, Kora River, Glaciers, Zhetysu Alatau (Dzungarian Alatau), glacier degradation, heavy metals, river runoff, anthropogenic pollution, Karatal River basinAbstract
This study examines the spatial and seasonal variability of water quality in glacier-fed river systems within the Karatal River basin, located in the north-western sector of the Zhetysu Alatau (Kazakhstan). The investigation focused on the Kora and Shyzhy rivers, which play a key role in forming the hydrological regime of the Karatal River. Fieldwork was carried out in 2025 and included two sampling campaigns (July and September), during which a total of 30 water samples were collected from the upper, middle, and lower river reaches. Hydro chemical analyses identified the presence of major ions, nutrients, and a range of trace elements (Pb, Cd, Zn, Cu, Cr, Mn, Sb, Sr, Se, Ni, Al, Mo). The results indicate that water chemistry in the headwater zones is primarily governed by natural processes, including lithological weathering, interactions between meltwater and glacial–moraine deposits, and atmospheric deposition of aerosols onto snow and ice surfaces. Along the downstream gradient, a dual trend is observed: the reduction of certain constituents due to sorption and sedimentation, alongside localized increases associated with anthropogenic pressures. Measured concentrations of chemical constituents remained within the permissible limits established by the sanitary regulations of the Republic of Kazakhstan. Nevertheless, ongoing glacier retreat may intensify the mobilization of previously accumulated contaminants during periods of enhanced ablation. The findings highlight the importance of integrated monitoring approaches for glacier-fed river systems in order to ensure reliable water quality assessment and to minimize emerging environmental risks.
References
Kaldybayev, A., Chen, Y., & Vilesov, E. (2016). Glacier change in the Karatal river basin, Zhetysu (Dzhungar) Alatau, Kazakhstan. Annals of Glaciology, 57(71). DOI: 10.3189/2016AoG71A005
Issaldayeva, S., Alimkulov, S., Raimbekova, Z., Bekseitova, R., & Karatayev, M. (2023). The climatic and river runoff trends in Central Asia: The case of Zhetysu Alatau region, the south-eastern part of Kazakhstan. Heliyon, 9(6), e17897. DOI: 10.1016/j.heliyon.2023.e17897
Kogutenko, L., Severskiy, I., Shahgedanova, M., & Lin, B. (2019). Change in the Extent of Glaciers and Glacier Runoff in the Chinese Sector of the Ile River Basin between 1962 and 2012. Water, 11(8), 1668. DOI: 10.3390/w11081668
Katalog lednikov SSSR. T. 13. Senträlnyi i İujnyi Kazahstan. Vyp. 2. Basein oz. Balhaş. Ch. 5. Basein r. Karatala. Leningrad: Gidrometeoizdat, 1980. 154 s. [USSR Glacier Inventory. Vol. 13. Central and Southern Kazakhstan. Issue 2. Lake Balkhash Basin. Part 5. Karatal River Basin]. [in Russian]
Barandun, M., Fiddes, J., Scherler, M., Mathys, T., Saks, T., Petrakov, D., & Hoelzle, M. (2020). The state and future of the cryosphere in Central Asia. Water Security, 11, 100072. DOI: 10.1016/j.wasec.2020.100072
Vilesov E.N., Morozova V.İ. Sovremennye tendensii izmenenia razmerov oledenenia i lednikovogo stoka v baseine reki Karatal, Zapadnaia Jungaria. Gidrometeorologia i ekologia, 2006, № 3, S. 80–92. [Current trends in changes of glaciation size and glacier runoff in the Karatal River basin, Western Dzungaria]. [in Russian]
Vilesov E.N. İzmenenie razmerov gornogo oledenenia Kazahstana za vtoruiu polovinu 20 – nachalo 21 v. Gidrometeorologia i ekologia, 2016, № 2, S. 43–64. [Changes in the size of mountain glaciation in Kazakhstan from the second half of the 20th to the early 21st century]. [in Russian]
Almaty oblysynyñ 1:1 000 000 masştabty äkımşılık-aumaqtyq kartasy. Almaty: Kartografia RMQK, 2001. [Administrative-territorial map of Almaty region at a scale of 1:1,000,000]. (in Kazakh)
Pfeffer, W. T., Arendt, A. A., Bliss, A., Bolch, T., Cogley, J. G., Gardner, A. S., et al. (2014). The Randolph Glacier Inventory: a globally complete inventory of glaciers. Journal of Glaciology, 60(221), 537–552. DOI: 10.3189/2014JoG13J176
Vilesov E.V., Morozova V.İ., Severski İ.V. Oledenenie Jungarskogo (Jetysu) Alatau: proşloe, nastoiaşee, buduşee. Almaty, 2013. 244 s.[Glaciation of the Dzungarian (Jetysu) Alatau: past, present, future]. [in Russian]
Severskiy, I., Vilesov, E., Armstrong, R., Kokarev, A., Kogutenko, L., Usmanova, Z., Morozova, V., & Raup, B. (2016). Changes in glaciation of the Balkhash–Alakol basin, central Asia, over recent decades. Annals of Glaciology, 57(71), 382–394. DOI: 10.3189/2016AoG71A575
Beard, D. B., Clason, C. C., Rangecroft, S., Poniecka, E., Ward, K. J., & Blake, W. H. (2022). Anthropogenic contaminants in glacial environments I: Inputs and accumulation. Progress in Physical Geography: Earth and Environment, 46(4), 630–648. DOI: 10.1177/03091333221107376
Beard D. B., Clason C. C., Rangecroft S., Poniecka E., Ward K. J., Blake W. H. Anthropogenic contaminants in glacial environments II: Release and downstream consequences // Progress in Physical Geography: Earth and Environment. 2022. Vol. 46, no. 5. DOI: 10.1177/03091333221127342
Kang, S., Zhang, Q., Qian, Y., Ji, Z., Li, C., Cong, Z., Zhang, Y., Guo, J., Du, W., Huang, J., You, Q., Panday, A. K., Rupakheti, M., Chen, D., Gustafsson, Ö., Thiemens, M. H., & Qin, D. (2019). Linking atmospheric pollution to cryospheric change in the Third Pole region: current progress and future prospects. National Science Review, 6(4), 796–809. DOI: 10.1093/nsr/nwz031
Pittino, F., Buda, J., Ambrosini, R., Parolini, M., Crosta, A., Zawierucha, K., & Franzetti, A. (2023). Impact of anthropogenic contamination on glacier surface biota. Current Opinion in Biotechnology, 80, 102900. DOI: 10.1016/j.copbio.2023.102900
Janiga M., Janiga M., Brecelj S., Feješ S., Abduakasov A., Oxikbayev B., Haas M. Differences in the synergic accumulation of toxic elements in pelagic and benthic fish from glacier-fed rivers of the Dzungarian Alatau // Ekológia (Bratislava). 2023. Vol. 42, no. 4. P. 310–318
Kaldybayev, A., Chen, Y., Issanova, G., Wang, H., & Mahmudova, L. (2016). Runoff response to the glacier shrinkage in the Karatal river basin, Kazakhstan. Arabian Journal of Geosciences, 9(3). DOI: 10.1007/s12517-015-2106-y
Shulembayeva, K., Rodrigo-Ilarri, J., Rodrigo-Clavero, M. E., Khussainov, A., Kakabayev, A., Khussainova, R. (2023). Assessment of the hydrophysical and hydrochemical characteristics of Lake Burabay (Akmola Region, North Kazakhstan). Sustainability, 15, 15, 11788. DOI: 10.3390/su151511788
Karta L-44 M 1:1 000 000. M.: GUGK, 1985. [Map L-44, scale 1:1,000,000]. [in Russian]
Paul, F., Barrand, N. E., Baumann, S., Berthier, E., Bolch, T., Casey, K., et al. (2013). On the accuracy of glacier outlines derived from remote-sensing data. Annals of Glaciology, 54(63), 171–182. DOI: 10.3189/2013AoG63A296
Prikaz ministra zdravoohranenia Respubliki Kazahstan ot 20 fevralä 2023 goda № 26. [Order of the Minister of Health of the Republic of Kazakhstan dated February 20, 2023 No. 26 on approval of sanitary rules for water bodies and water use]. [in Russian]
Cherkasov P.A. Sovremennoe sostoianie lednikov İli-Balhaşkogo regiona. In: Kudekov T.K. (ed.) Sovremennoe ekologicheskoe sostoianie ozera Balhaş. Almaty: Kaganat, 2002. S. 141–198.[Current state of glaciers in the Ili-Balkhash region]. [in Russian]
Carling, G. T., Rupper, S. B., Fernandez, D. P., Tingey, D. G., & Harrison, C. B. (2017). Effect of atmospheric deposition and weathering on trace element concentrations in glacial meltwater at Grand Teton National Park, Wyoming, U.S.A. Arctic, Antarctic, and Alpine Research, 49(3), 427–440. DOI: 10.1657/AAAR0016.071
Glazyrin G.E., Kodama Yu. Osenka izmenenia oledenenia v perehodnom rejime pri izmenenii klimata. Materialy glyatsiologicheskih issledovanii, 2003, vyp. 94, S. 212–215.[Assessment of glaciation changes under transitional climate conditions]. [in Russian]
Kokarev A.L. Osenka sovremennyh izmenenii gornolednikovyh sistem İugo-Vostochnogo Kazahstana: avtoref. dis. kand. geogr. nauk. Almaty, 2009. 20 s.[Assessment of current changes in mountain glacier systems of Southeastern Kazakhstan: abstract of PhD dissertation]. [in Russian]
Golubsov V.V., Lineiseva A.V. Postuplenie vody v reku Karatal za schet degradasii gornogo oledenenia. Gidrometeorologia i ekologia, 2010, № 4, S. 101–107.[Contribution of glacier degradation to water inflow in the Karatal River]. [in Russian]
Zhu T. [et al.]. Accumulation of pollutants in proglacial lake sediments: Impacts of glacial meltwater and anthropogenic activities // Environmental Science & Technology. 2020. Vol. 54, no. 13. DOI: 10.1021/acs.est.3c00511
Tóth, J., Papp, S. (2018). Hydrogeochemical characteristics of saline lakes in the Carpathian Basin. Central European Geology, 61(2), 185–203. DOI: 10.1556/24.61.2018.02.4
Utepbaeva I.A., Mukatai A. (2018). Spatio-temporal changes in the hydrochemical regime of lake Alakol during the fluid period. Hydrometeorology and Ecology, 1, 92–102.
Yapiyev V., Wade A. J., Shahgedanova M., Saidaliyeva Z., Madibekov A., Severskiy I. The hydrochemistry and water quality of glacierized catchments in Central Asia: A review of the current status and anticipated change // Journal of Hydrology: Regional Studies. 2021. Vol. 38. Art. 100960. DOI: 10.1016/j.ejrh.2021.100960.
Barkdull, N. S., Carling, G. T., Fernandez, D. P., Nelson, S. T., Bickmore, B. R., Tingey, D. G., Checketts, H. N., Packer, B. N., & Hale, C. A. (2021). Glaciers Control the Hydrogeochemistry of Proglacial Streams During Late Summer in the Wind River Range, Wyoming, United States. Frontiers in Earth Science, 9, 727575. DOI: 10.3389/feart.2021.727575
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Copyright (c) 2026 Берикжан Оксикбаев , Еркин Токпанов, Мырзабай Джетимов , Ерлан Андасбаев, Данагуль Мукашева
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