Janubiy Orolbo‘yi suv havzalari rejimining shakllanishiga ta’sir etuvchi ekologik omillarni baholash (Jiltirbas ko‘li misolida)

The aim of this study is to assess the main natural and anthropogenic ecological factors that affect the formation of the water regime of Lake Jiltirbas, one of the water bodies of the Southern Aral Sea region. The study involved the analysis of hydrological and hydrographic data, comparison of remote sensing materials, assessment of changes in water surface area and water level, as well as the available scientific literature and cartographic materials. Lake Jiltirbas is an important water body in the ecological system of the Southern Aral Sea region, and its regime is closely linked to the river and delta network, collector-drainage flow, precipitation, evaporation, temperature, groundwater and water management. Existing studies show considerable year-to-year and seasonal changes in the water level and water surface area of the lake. A 2023 study assessed the hydrography, morphometry and current state of Jiltirbas on the basis of Google Earth, SAS Planet and USGS materials and archival data. A 2025 study analysed long-term phase changes of the lakes of the Southern Aral Sea region using Landsat imagery and the NDWI/MNDWI indices. The results point to the need for regular monitoring of water exchange, water level and ecological indicators in order to preserve Jiltirbas as a permanently water-filled lake.

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