UNIQUE LAKE SUGGER IN NURBINSKY DISTRICT OF YAKUTIA

The article examines the modern lemnoecological state of the unique Lake Sugger, village of Bordon, Nyurbinsky District. Studies were carried out in order to obtain new limnological parameters for a scientifically based assessment of the modern ecological state, to determine the functioning of the lake ecosystem under the influence of anthropogenic effects. The research work of the Lake Science Laboratory is based on geoecological, geological-geomorphological and limnological methods and approaches to the study of lake ecosystems in Russia and the organization of their monitoring, developed and used in specialized academic institutes of the Russian Federation performing scientific research on large lakes. During the study, the modern morphometric parameters of the lake were determined, which is characterized by 2 its unique indicators: length - 6.443 km, maximum width - 4.934 km, water mirror area - 24.84 km , catchment 2 3 area - 188 km , water volume - 30.11 million m . It was revealed that the water balance of the analysed flow lake is determined by the presence of 17 inflowing tributaries and an outflowing one. In addition, atmospheric precipitation and seasonally melting water are involved in feeding the lake. Chemical analyses were carried out, during which the component composition of water samples was determined. The total mineralization does not exceed 246 mg/l and is characterized by a mixed type of water. Water contamination with organic substances, metal salts, fluorides and petroleum products was detected. The water of the lake has quality class 7 and is characterized as “extremely dirty.” The bottom sediments of the lake are represented by low-power clay sludge. It was revealed that according to geochemical and agrochemical indicators, deposits of the lake differ significantly from lake deposits of the lowland cryolithozone of Central Yakutia. The low chemical values of sludge indicate the slowness of the processes of mineralization of substances in cold water and the constant movement of the lake water.

lake, genesis, area of water mirror, volume of water, chemical composition, bottom sediments, ecological state, scientific recommendations

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