Chemical composition of modern and pre-acidification sediments in the Tatra Mountain lakes View Full Text


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Article Info

DATE

2006-09

AUTHORS

Jiří Kopáček, Jakub Borovec, Josef Hejzlar, Ivana Kotorová, Evžen Stuchlík, Josef Veselý

ABSTRACT

Concentrations of major nutrients (C, N, P) and acid soluble metals (Ca, Mg, K, Al, Fe, Mn, Pb, and Zn) were determined in modern (0–1 cm) and pre-acidification (5–10 cm) sediment layers collected from 37 alpine and 3 forest lakes in the Tatra Mountains (Slovakia, Poland) in 1996–1998. Sediment composition reflected catchment characteristics and productivity of lakes. In the sediments of alpine lakes, C and N concentrations decreased and Mg increased with a decreasing proportion of vegetation and soil in the catchment. Decreasing Ca:Mg ratios in sediments along the vegetation gradient was inverse to that in water, and could be associated with different ratios of cations in water leachate from catchments and in solids which enter the lake due to soil erosion. Phosphorus concentrations increased with the proportion of moraine areas, with till soils rich in P. Concentrations of C, N, P, and Ca in sediments positively correlated to their concentrations in water. Sediment concentrations of Al and Al:Ca ratios increased with decreasing sediment and water pH. A negative correlation between water pH and concentrations of organic C in water and sediments indicated the important impact of organic acids on the acid status of the lakes exposed to higher terrestrial export of organic matter. Compared to the pre-acidification period, the modern sediments had significantly higher Fe, Mn, Zn, Pb, and K, but lower Mg concentrations. The Zn and Pb enrichment was more evident in oligotrophic alpine lakes than in more productive forest lakes and was independent of lake water or sediment pH. Fe and Mn concentrations in the modern sediments were higher than in ambient soils and bedrock, while those in pre-acidification sediments were similar to contemporary soils and to the rock layer. The enrichment of the modern sediments with Fe and Mn thus probably resulted from both their redox recycling and ecosystem acidification. More... »

PAGES

s65-s76

References to SciGraph publications

  • 1998-10. Influence of catchment quality and altitude on the water and sediment composition of 68 small lakes in Central Europe in AQUATIC SCIENCES
  • 2006-09. Epilithic diatoms of mountain lakes of the Tatra Mountains (Slovakia) in BIOLOGIA
  • 2006-09. Subfossil chironomids (Diptera, Chironomidae) in three Tatra Mountain lakes (Slovakia) on an acidification gradient in BIOLOGIA
  • 2006-09. Chemical composition of the Tatra Mountain lakes: Response to acidification in BIOLOGIA
  • 2002-06. The paleolimnological analysis of sediments from high mountain lake Nižné Terianske pleso in the High Tatras (Slovakia) in JOURNAL OF PALEOLIMNOLOGY
  • 2002-03. Hysteresis in Reversal of Central European Mountain Lakes from Atmospheric Acidification in WATER, AIR, & SOIL POLLUTION: FOCUS
  • 2006-09. Chemical composition of the Tatra Mountain lakes: Recovery from acidification in BIOLOGIA
  • 2006-09. Long-term change of the littoral Cladocera in the Tatra Mountain lakes through a major acidification event in BIOLOGIA
  • 2002. Nitrogen Isotopes in Palaeolimnology in TRACKING ENVIRONMENTAL CHANGE USING LAKE SEDIMENTS
  • 1986-12. Alkalinity production in epilimnetic sediments: Acidic and non-acidic lakes in WATER, AIR, & SOIL POLLUTION
  • 2006-09. Radiometric dating of sediment records from mountain lakes in the Tatra Mountains in BIOLOGIA
  • 1994-02. Acidification of lakes in Šumava (Bohemia) and in the High Tatra Mountains (Slovakia) in HYDROBIOLOGIA
  • 2006-09. Pools and composition of soils in the alpine zone of the Tatra Mountains in BIOLOGIA
  • 2002. Inorganic Geochemical Methods in Palaeolimnology in TRACKING ENVIRONMENTAL CHANGE USING LAKE SEDIMENTS
  • 2002-03. Reconstruction of Long-Term Changes in Lake water Chemistry, Zooplankton and Benthos of a Small, Acidified High-Mountain Lake: Magic Modelling and Palaeolimnogical Analysis in WATER, AIR, & SOIL POLLUTION: FOCUS
  • 2002. Sediment Organic Matter in TRACKING ENVIRONMENTAL CHANGE USING LAKE SEDIMENTS
  • 2004-03. Chemical and Biochemical Characteristics of Alpine Soils in the Tatra Mountains and their Correlation with Lake Water Quality in WATER, AIR, & SOIL POLLUTION
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