References

aari

Проблемы Арктики и Антарктики

Arctic and Antarctic Research

0555-26482618-6713

Государственный научный центр Российской Федерации Арктический и антарктический научно-исследовательский институт

10.30758/0555-2648-2019-65-4-422-437

aari-218

Research Article

ГИДРОЛОГИЯ СУШИ И ГИДРОХИМИЯ

HYDROLOGY OF LAND AND HYDROCHEMISTRY

Основные гидрохимические характеристики антарктических озер Холмов Тала

Chemical characteristics of antarctic lakes of the Thala Hills

Какарека

С. В.

Kakareka

S. V.

Кухарчик

Т. И.

Kukharchyk

T. I.

Кокош

Ю. Г.

Kokosh

Yu. G.

y-kokosh@mail.ru

Кудревич

М. А.

Kudrevich

M. A.

Гигиняк

Ю. Г.

Giginyak

Yu. G.

Мямин

В. Е.

Myamin

V. E.

Государственное научное учреждение Институт природопользования Национальной академии наук БеларусиБеларусьInstitute for Nature Management of the National Academy of Sciences of BelarusBelarus

Республиканский научно-практический центр по биоресурсам Национальной ака¬демии наук БеларусиБеларусьThe Scientific and Practical Centre for Bioresources of the National Academy of Sciences of BelarusBelarus

Белорусский государственный университетБеларусьBelarusian State UniversityBelarus

2019

19122019

654422437

2019

Какарека С.В., Кухарчик Т.И., Кокош Ю.Г., Кудревич М.А., Гигиняк Ю.Г., Мямин В.Е.

Kakareka S.V., Kukharchyk T.I., Kokosh Y.G., Kudrevich M.A., Giginyak Y.G., Myamin V.E.

Данная работа распространяется под лицензией Creative Commons Attribution 4.0.

This work is licensed under a Creative Commons Attribution 4.0 License.

https://www.aaresearch.science/jour/article/view/218

Статья посвящена анализу гидрохимических показателей озер и временных водоемов восточной части Холмов Тала (Земля Эндерби, Восточная Антарктида). Впервые для данного региона охарактеризовано содержание основных ионов и других гидрохимических показателей по результатам опробования водоемов в период с 2011 по 2018 г. в рамках сезонных Белорусских антарктических экспедиций. Показано, что озера, являясь низкоминерализованными с диапазоном суммы ионов в пределах 10,6–87,5 мг/л, со слабокислой и нейтральной реакцией среды, близки между собой по химическому составу. Воды малых (временных) водоемов характеризуются большей вариабельностью гидрохимических параметров. Установлено преобладание в большинстве случаев ионов натрия и хлоридов, что свидетельствует о влиянии морских аэрозолей на химический состав водоемов. Полученные данные являются основой последующих оценок уязвимости озер и временных водоемов к антропогенным воздействиям и климатическим изменениям.

The article presents the results of measurements of the principal ions content, electrical conductivity and pH for 13 lakes and small (temporary) water ponds in the east part of the Thala Hills, Enderby Land, East Antarctica. Water sampling was carried out by participants of the seasonal Belarusian Antarctic expeditions in the period from 2011 to 2018. The purpose of the study is the evaluation of the hydrochemical composition of lakes and temporary ponds of the Thala Hills (on an example of the Vecherny Oasis), identification of natural and anthropogenic factors which determine the variability of the hydrochemical parameters for assessment of vulnerability of lakes and temporary ponds to anthropogenic impacts and climate change. It is shown that the waters of the lakes of this region are low mineralized with the sum of ions within the range of 10.6–87.5 mg/l (the average is 34.5 mg/l), electrical conductivity — 19.3–130.0 μS/cm (61.3 μS/cm). The water is characterized as slightly acidic and neutral. The waters of small (temporary) ponds are characterized by greater variability of hydrochemical parameters in comparison with lakes: the sum of ions is in the range of 6.7–915.0 mg/l (the average is 158.0 mg/l), the electrical conductivity is 4.6–1663.0 μS/cm (the average is 267.0 μS/cm). Coefficients of variation for most compounds in the waters of temporary ponds exceed 100 %. In most cases the predominance of sodium and chloride ions was established, which indicates the influence of marine aerosols on chemical composition of water lakes and temporary ponds. Elevated concentrations of mineral elements in the water of temporary ponds are caused by the lack of flow and, and as a consequence of thies, the accumulation of salts as a result of evaporation.

Антарктидагидрохимический составминерализацияозераосновные ионы

Antarcticahydrochemistrylakesmineralizationprincipal ions

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The authors declare that there are no conflicts of interest present.