Temporal trend in the intensity of subsurface saltwater ingressions to coastal Lake Sarbsko (northern Poland) during the last few decades

Woszczyk, Michał; Spychalski, W.; Lutyńska, Monika; Cieśliński, Roman

doi:10.1088/1755-1315/9/1/012013

Cited by 10 publications

(9 citation statements)

References 14 publications

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“…However, during severe winter storms marine waters may enter the lake via the Łeba river mouth and the Chełst outflow channel slightly raising its salinity.Marine influences in the lake are also reflected in the seasonal variations of the water level, which clearly coincide with fluctuations of the Baltic level (Woszczyk et al 2010).…”

Section: Study Areamentioning

confidence: 84%

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Fractionation of metals in the Sa1/2 sediment core from Lake Sarbsko (northern Poland) and its palaeolimnological implications

Woszczyk

Spychalski

2013

Chemical Speciation & Bioavailability

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This article documents and interprets stratigraphical changes in fractionation of Fe, Mn, Mg, K, Pb, Cu and Zn in the Sa1/2 sediment core from a coastal freshwater lake, Lake Sarbsko (northern Poland). The elements were sequentially extracted from the samples to distinguish five geochemical fractions: exchangeable, acid-extractable, reducible, oxidisable and residual. The analyses revealed substantial variations in geochemical partitioning of the elements and showed no correlation between the fractionation patterns and lithology of the sediments. In the sediments of Lake Sarbsko, iron is mainly bound to sulfides. Potassium occurs in its residual form. Magnesium and zinc are associated with carbonates and aluminosilicates, while copper occurs in compounds with organic matter and sulfides. Lead is found in connection with aluminosilicates and, to a lesser extent, with sulfides and organic matter. Manganese is partitioned between the oxidisable, acid-extractable, and exchangeable fractions. Heavy metals and potassium display the overall tendency to reduce the contents of their residual forms towards the top of the depositional sequence. Fe, Mn, Mg and Zn were found to be the most susceptible to post-sedimentary mobilisation.

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Section: Study Areamentioning

confidence: 84%

“…Genetic interpretation of sediments according to Woszczyk et al (2008). Calibrated radiocarbon ages taken from Woszczyk et al (2010). The age-depth model shows mean (bold line) ± 2σ age.…”

Section: Figurementioning

confidence: 99%

Fractionation of metals in the Sa1/2 sediment core from Lake Sarbsko (northern Poland) and its palaeolimnological implications

Woszczyk

Spychalski

2013

Chemical Speciation & Bioavailability

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“…On the other hand, during severe storms on the Baltic Sea, Lake Sarbsko is occasionally supplied with marine water via the Łeba River mouth and the Chełst outflow channel (Woszczyk et al 2010). Seasonal variations in water level are in accordance with changes of the Baltic level (Majewski 1972;Woszczyk et al 2010). Higher lake water levels are observed between autumn and spring, while lowstands occur in summer.…”

Section: Study Areamentioning

confidence: 98%

“…As Lake Sarbsko has no direct connection to the Baltic Sea, freshwater input has the greatest influence on chemical composition of its water (Cieśliński 2007). On the other hand, during severe storms on the Baltic Sea, Lake Sarbsko is occasionally supplied with marine water via the Łeba River mouth and the Chełst outflow channel (Woszczyk et al 2010). Seasonal variations in water level are in accordance with changes of the Baltic level (Majewski 1972;Woszczyk et al 2010).…”

Section: Study Areamentioning

confidence: 99%

Interactions between microbial degradation of sedimentary organic matter and lake hydrodynamics in shallow water bodies: insights from Lake Sarbsko (northern Poland)

Woszczyk¹,

Bechtel²,

Cieśliński³

2011

J Limnol

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In this paper we demonstrate spatial and seasonal changes in the pathways of microbial decomposition of organic matter within the surface sediments of Lake Sarbsko, a coastal water body located on the middle Polish-Baltic coast. We studied lake waters and bottom sediments at 11 sampling stations throughout the basin and in different seasons between November 2007 and September 2008. It was established that, in this very productive and shallow lake, microbial activity increases in warmer seasons and ceases during winter. In spring, bacterial activity is fuelled by increased influx of highly reactive planktonic organic matter, which is decomposed via methanogenesis, reduction of NO3 -, SO4 2-, and Fe and Mn oxides. On the other hand, during summer, oxidation processes (mainly oxidation of CH4) tend to predominate. The change from reduction to oxidation is attributed to wind-induced vertical mixing of Lake Sarbsko waters and resuspension of bottom deposits. Degradation of sedimentary organic matter in Lake Sarbsko results in appreciable changes in the pH and the concentrations of red-ox sensitive ions in pore waters, but it has little effect on the chemistry of bottom and surface waters. However, release of PO4 3- from the sediments might be a source of this nutrient in the lake. Internal loading of phosphates in Lake Sarbsko occurs under both oxic/mildly reducing and anoxic conditions

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“…Salinization results from the concentration and precipitation of water-soluble salts such as chlorides in the groundwater (Metternicht 2001). According to Woszczyk et al (2010) and Gholami et al (2009), salinity changes more significant locally than temporally. In small islands, seawater intrusion is the main contributor to the increasing groundwater salinity (Rejani et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Understanding of groundwater salinity using statistical modeling in a small tropical island, East Malaysia

et al. 2011

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This paper presents an understanding of groundwater salinity by identification of effective factors using chemometric methods (cluster analysis and multiple linear regressions) in Manukan Island, Sabah. Local groundwater and environmental properties were used to explore the effective factors of groundwater salinity. Cluster analysis showed salinity and chloride illustrated the highest similarities. Electrical conductivity and total dissolved solids were also grouped in the same cluster. Seawater is the only chloride source in groundwater of Manukan Island demonstrated an indication of seawater mixing in freshwater. It is an effect of upward movement of the seawater by pumping activities. Precipitation and evapotranspiration (environmental condition) with hydraulic heads were clustered together to show that they also influence salinity concentration in groundwater. Multiple linear regressions showed descending order of the factors from chloride (the largest contribution) to evapotranspiration (the smallest contribution) and illustrated the contribution to groundwater salinity in Manukan Island. The integrated results using chemometric methods have provided a way to identify the effective factors on groundwater salinity. This similar approach and resulting equation can be applied in other small tropical islands with alike hydrogeological condition and limited information available for a better understanding of its groundwater salinity.

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Temporal trend in the intensity of subsurface saltwater ingressions to coastal Lake Sarbsko (northern Poland) during the last few decades

Cited by 10 publications

References 14 publications

Fractionation of metals in the Sa1/2 sediment core from Lake Sarbsko (northern Poland) and its palaeolimnological implications

Fractionation of metals in the Sa1/2 sediment core from Lake Sarbsko (northern Poland) and its palaeolimnological implications

Interactions between microbial degradation of sedimentary organic matter and lake hydrodynamics in shallow water bodies: insights from Lake Sarbsko (northern Poland)

Understanding of groundwater salinity using statistical modeling in a small tropical island, East Malaysia

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