Chemical analysis of Lake Shira water (1997-2000)

The paper presents the results of chemical analysis of Shira during summer (July-August). The chemical composition of waters in the water body was found to be fairly homogeneous horizontally. However, the concentrations of most ions increased with depth. The near-bottom layers were characterised by...

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Published inAquatic ecology Vol. 36; no. 2; pp. 123 - 141
Main Authors Kalacheva, G S, Gubanov, V G, Gribovskaya, I V, Gladchenko, IA, Zinenko, G K, Savitsky, S V
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Nature B.V 01.04.2002
Subjects
Ammonium
Anthropogenic factors
Brackish
Chemical analysis
Lakes
Magnesium
Russia, Siberia, Shira L
Sulfates
Sulfides
Water bodies
Water quality
Russia
Russia, Siberia, Shira L
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Summary:The paper presents the results of chemical analysis of Shira during summer (July-August). The chemical composition of waters in the water body was found to be fairly homogeneous horizontally. However, the concentrations of most ions increased with depth. The near-bottom layers were characterised by higher total mineral content and ash content, higher concentration of sulphates, sulphites, sulphide, phosphorus, ammonium nitrogen, as compared to the layers above. Maximum concentration of oxygen was recorded in 6-8 m stratum, where the photosynthetic processes were most active. The anaerobic layer which lay below the 12 m depth contained high concentrations of sulphide and sulphite. The composition of the lake water could be characterised as sulphate-chloride-bicarbonate sodium-magnesium. The changes in the water quality due to any anthropogenic emissions were not marked.
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ISSN:1386-2588
1573-5125
DOI:10.1023/A:1015695813280