Issue |
E3S Web Conf.
Volume 623, 2025
IV International Conference on Ensuring Sustainable Development: Ecology, Earth Science, Energy and Agriculture (AEES2024)
|
|
---|---|---|
Article Number | 01010 | |
Number of page(s) | 11 | |
Section | Ecology, Biodiversity and Ways of its Conservation | |
DOI | https://doi.org/10.1051/e3sconf/202562301010 | |
Published online | 08 April 2025 |
Assessment of quantity and quality indicators of water resources in the Zarafshan river basin (within the territory of Uzbekistan)
1 National University of Uzbekistan named after Mirzo Ulugbek, 4, University street, Tashkent, 100174, Uzbekistan
2 Philipps-Universität Marburg, Marburg, 35032, Germany
* Corresponding author: rashidkulmatov46@gmail.com
In the context of climate change and growing antrophogenic activities, the depletion and pollution of water resources is a global concern, posing significant threats worldwide. This study evaluates the volume and quality of water resources, the heavy metal concentrations, the total mineralization and the quantity of collector-drainage waters, and the primary factors contributing to the pollution of the Zarafshan River in Uzbekistan, based on in situ data from 2013 to 2023. The perennial results show that the average annual indicator of the volume of collector-drainage water has increased from 2,787 million m3 to 3,418 million m3, the amount of salts grow up 2,914 thousand tons from the annual average of 4,808,000 tons. The heavy metal concentrations (Cu, Zn, Cr (VI)) were analyzed from the upper part to the lower part of the Zarafshan River. Cu has increased from 1.3 times to 1.35 times, Zn has increased from 1.2 times to 4.7 times, Cr (VI) hasincreased from 1.1 times to 8 times over the years from 2013 to 2023. Long-term research show the mineralization of the water of the Zarafshan River has increased from the upper part of to the lower part within the territory of Uzbekistan from 3.9 to 6.5 times in the observed years. The minimum average annual salinity value of collector-drainage water in the Zarafshan River basin is 0.79 g/L in the Samarkand region, while the highest value is 2.9 g/L in the Navoi region.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.