Spatial Diversity Characterising Certain Chemical Substances in Sediments of Besko Reservoir

Piwińska, D.; Gruca–Rokosz, Renata; Bartoszek, Lilianna; Czarnota, Joanna

doi:10.12911/22998993/79448

Cited by 5 publications

(7 citation statements)

References 9 publications

(5 reference statements)

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“…For example, the sediments in Sulejów Reservoir have OM contents in the 9.9-21.8% range, as well as TOC values of 5.2-10.3% [46]. In the sediments of Czorsztyn Reservoir, the OM values ranged from 2.3-11.9% [47], while corresponding values for other reservoirs are: Solina 8.72-10.11% OM and 1.94-2.92% TOC; Myczkowce 10.78-11.94% OM and 3.95-4.08% TOC [48,49].…”

Section: Sediment Characteristicsmentioning

confidence: 99%

Anaerobic Oxidation of Methane in Freshwater Sediments of Rzeszów Reservoir

Szal

Gruca–Rokosz

2020

Water

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The anaerobic oxidation of methane (AOM) is an important sink of methane that plays a significant role in global warming. However, evidence for the AOM in freshwater habitats is rare, especially in dam and weir (small-scale dam) reservoirs. Here, the AOM process was examined in freshwater sediments of a small-scale dam reservoir located in Rzeszów, SE Poland. The AOM rate was determined in the main experiment with the addition of the 13 CH 4 isotope marker (He+ 13 CH 4 ). Sediments were collected three times: in spring (in May, 15 • C), in summer (in July, 20 • C) and in autumn (in September, 10 • C). Further analysis considers the impact on AOM rate of potential electron acceptors present in pore-water (NO 2 − , NO 3 − , SO 4 2− , and Fe 3+ ions). The work suggests that an AOM process does take place in the studied reservoir sediments, with this evidenced by the presence in the headspace of an increased 13 CO 2 concentration deemed to derive from 13 CH 4 oxidation. Rates of AOM noted were of 0.36-1.42 nmol·g −1 ·h −1 , with the most intensive oxidation in each sediment layer occurring at 20 • C. While none of the potential electron acceptors considered individually were found to have had a statistically significant influence on the AOM rate, their significance to the dynamics of the AOM process was not precluded.

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Section: Sediment Characteristicsmentioning

confidence: 99%

Anaerobic Oxidation of Methane in Freshwater Sediments of Rzeszów Reservoir

Szal

Gruca–Rokosz

2020

Water

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“…Stratigraphic fluctuations of C/N in sediment cores are interpreted as temporal shifts in the relative contributions of terrestrial and aquatic OM to the sediment (Brenner et al 2006;Piwińska et al 2018). The C/N molar ratios (10.2 ± 2.5) indicated a predominance of autochthonous OM over time in the dam region (Table 2; Fig.…”

Section: C/n C/p and N/p Molar Ratiosmentioning

confidence: 99%

Factors that control the spatial and temporal distributions of phosphorus, nitrogen, and carbon in the sediments of a tropical reservoir

Cardoso-Silva

Ferreira

Figueira

et al. 2018

Environ Sci Pollut Res

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The impacts of anthropic activities have had profound effects on the nitrogen (N) and phosphorus (P) cycles in many aquatic ecosystems. We investigated the spatial and temporal distributions of carbon (C), N, and P in the sediments of a tropical Paiva Castro Reservoir (São Paulo, Brazil), as well as their release and retention in the system. In 2010, surface sediments were collected at nine sites in the reservoir, and a core was obtained in the limnetic zone, in 2010. The core was dated using the Pb technique. The organic C content was estimated from organic matter concentration, which was measured by the loss-on-ignition method, and the concentrations of P and N were determined by spectrophotometry. Marked spatial heterogeneity in the Paiva Castro sediments associated with both natural variations in the water body and variations induced by human impacts was observed. Heterogeneity was evidenced by a decrease in the allochthonous contribution of organic matter (C/N) in the upstream-downstream direction and increases of N and P, mainly associated with water flows in the different compartments of the reservoir. In the core, C and N concentrations display significant positive correlations with increases in population and agricultural activities in the drainage basin through time. The C/P molar ratios in surface sediments are indicative of human impacts in the region, as C:P ratios in the sediment are low (7.8:1) compared to the Redfield ratio (C:P = 108:1). Predominance of oxic conditions at the sediment surface and particles sizes< 63 μm provided favorable conditions for P retention in the sediments, which helps prevent eutrophication. Approaches used in this research should be extended to other locations, especially in mesotrophic and oligotrophic reservoirs, to provide information on historical impacts in such aquatic ecosystems.

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“…Positive correlations were obtained between OM and TN content (R 2 = 0.87) as well as between TOC and TN (R 2 = 0.71). For comparison, Besko Reservoir was previously found to have OM in sediments in the 3.88-5.93% range [13], and Rzeszów Reservoir -4.83-9.22% [unpublished materials]. Higher TOC values were also noted, i.e.…”

Section: Resultsmentioning

confidence: 89%

“…Results for certain chemical parameters of Solina Reservoir sediments are presented in Table 1. [13]. In turn, Dobczyce Reservoir sediments are found to have a still-more-limited abundance of carbonate, in the 0.42-3.18% range [14].…”

Section: Resultsmentioning

confidence: 99%

The content of selected heavy metals and their bioavailable fraction in sediments of Solina Reservoir (Poland)

Piwińska

Gruca–Rokosz

2018

E3S Web Conf.

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Research on sediments of Solina Reservoir, Poland, were characterized by a content of copper higher than other heavy metals (Cr, Ni, Cd and Zn). The strongest correlations between pairs of heavy metals were Zn–Cu and Ni–Cr, were revealed while there was also a correlation between total contents of chromium and nickel, and between pH value and sediment percentage of organic matter. The content of copper at levels exceeding the geochemical background (more than 20–fold), sediments could only by classified as of the 3rd purity class (according to the PIG criterion) or the 5th purity class (according to Müller’s classification). Ecotoxicological criteria indicate that levels of chromium, copper, nickel and cadmium are all high enough to affect aquatic life. However, the heavy metals analyzed differ in their mobility and bioavailability. The highest percentage value for the ion–exchangeable fraction was noted for cadmium, the lowest for chromium. This means that sediments have a greater capacity to release cadmium into the water column, with the consequence being secondary pollution source for the aquatic ecosystem.

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Spatial Diversity Characterising Certain Chemical Substances in Sediments of Besko Reservoir

Cited by 5 publications

References 9 publications

Anaerobic Oxidation of Methane in Freshwater Sediments of Rzeszów Reservoir

Anaerobic Oxidation of Methane in Freshwater Sediments of Rzeszów Reservoir

Factors that control the spatial and temporal distributions of phosphorus, nitrogen, and carbon in the sediments of a tropical reservoir

The content of selected heavy metals and their bioavailable fraction in sediments of Solina Reservoir (Poland)

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