Dynamic criteria for evaluation of the resistance of lake ecosystems of Belarusian Poozerie to external impact

  • Nina Y. Sukhovilo Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus
  • Boris P. Vlasov Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus
  • Aliaksei A. Novik Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus

Abstract

The article describes the results of the investigation of influence of external and internal water exchange on the stability of lakes to external impact. The objects of the study are 24 reservoirs of the Belarusian Poozerie, differing in origin, morphometric parameters, temperature regime and degree of economic using. The calculation of the mixing and stratification was carried out using the online model Lake Analyzer. The determination of the regularities of changes in the characteristics studied was based on methods of mathematical statistics. In the course of the study, regularities for the changes in hydro­ and thermodynamic parameters were established, depending on the morphometry of their basins and weather conditions, and the features of their influence on the stability of lakes to the external load were considered. The analysis of the interconnections of the complex zonal and azonal, external and internal factors and their quantitative
assessment made it possible to distinguish three groups of reservoirs in terms of their resistance to anthropogenic effects: stable, medium­stable and unstable. The results obtained can be used to manage water ecosystems and determine the permissible load on them.

Author Biographies

Nina Y. Sukhovilo, Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus

junior researcher at the laboratory of lake research, faculty of geography

Boris P. Vlasov, Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus

doctor of science (geography), full professor; head of the laboratory of lake research, faculty of geography

Aliaksei A. Novik, Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus

PhD (geography), docent; associate professor at the department of earth science and hydrometeorology,
faculty of geography

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Published
2019-01-19
Keywords: lake, wind work, thermal stability, resistance to external impact, water exchange
How to Cite
Sukhovilo, N. Y., Vlasov, B. P., & Novik, A. A. (2019). Dynamic criteria for evaluation of the resistance of lake ecosystems of Belarusian Poozerie to external impact. Journal of the Belarusian State University. Geography and Geology, 2, 13-24. Retrieved from https://journals.bsu.by/index.php/geography/article/view/819
Issue
No 2 (2018): Journal of the Belarusian State University. Geography and Geology
Section
Geography

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