THE OXYGEN REGIME OF A SHALLOW LAKE
https://doi.org/10.15356/2071-9388_02v09_2016_04
Аннотация
The year-round measurement data of water temperature and dissolved oxygen content in a small boreal Lake Vendyurskoe in 2007–2013 were used to explore the hydrophysical prerequisits of anoxia and accumulation and emission of greenhouse gases. Typically, anoxia appears in the bottom layers of lakes in mid-winter and during the summer stagnation. The thickness of the benthic anaerobic zone (dissolved oxygen concentration <2 mg·l–1) reached one meter in the end of the winter and at the peak of the summer stratification, except for the extremely hot summer of 2010, when it reached five meters. Synoptic conditions had a crucial influence on the formation and destruction of the benthic anaerobic zones in summer. The most favorable oxygen dynamics was observed during the cold summers of 2008, 2009, and 2012, when the repeated full mixings of the water column occurred under conditions of the cyclonic weather. In the winter periods, the early dates of ice season resulted in the most pronounced deficiency of oxygen.
Об авторах
Galina Zdorovennova
Northern Water Problems Institute
Россия
Россия
Nikolay Palshin
Northern Water Problems Institute
Россия
Россия
Roman Zdorovennov
Northern Water Problems Institute
Россия
Россия
Sergey Golosov
Northern Water Problems Institute, Institute of Limnology, Russian Academy of Sciences
Россия
Россия
Tatyana Efremova
Northern Water Problems Institute
Россия
Россия
Galina Gavrilenko
Northern Water Problems Institute
Россия
Россия
Arkady Terzhevik
Northern Water Problems Institute
Россия
Россия
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Рецензия
Для цитирования:
, , , , , , . GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY. 2016;9(2):47-57. https://doi.org/10.15356/2071-9388_02v09_2016_04
For citation:
Zdorovennova G., Palshin N., Zdorovennov R., Golosov S., Efremova T., Gavrilenko G., Terzhevik A. THE OXYGEN REGIME OF A SHALLOW LAKE. GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY. 2016;9(2):47-57. https://doi.org/10.15356/2071-9388_02v09_2016_04
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