MAIN STAGES OF FORMATION AND TROPHIC STATUS OF THE AIDAR-ARNASAY LAKE SYSTEM
Abstract
The article discusses the formation features of the Aydar-Arnasoy lake system, located in the middle part of the Sir Darya River basin. It is established that the system was formed in the 1960s–1970s as a result of the gradual accumulation of saline waters coming from the Mirzachul (Golodnaya Steppe) irrigated area in Uzbekistan. The first stage of the system's formation is associated with the creation of Lake Tuzkon. The second stage is linked to the breach of the Chardara Reservoir dam in 1969, which led to the flooding of vast lowland areas previously characterized by semi-desert landscapes and the merging of Lake Tuzkon with the newly formed water body. The lake system belongs to the category of anthropogenic water bodies, whose hydrological and ecological characteristics remain poorly studied. Based on the analysis of published works, field observations, and research, the current morphometric characteristics, features of changes in water pollution levels by individual components, as well as overall pollution indicators, which directly affect the formation and variability of ecological conditions in the lake system's water area, have been determined. These factors directly impact the formation and variability of ecological conditions, including the trophic status, within the lake system.
Keywords
Chardara Reservoir, collector-drainage waters, Central Golodnaya Steppe Collector (CGSC), mineralization, precipitation, water balance, chemical analysis, relative humidity, fisheries.How to Cite
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