An appraisal of changes in seasonal water quality during passage through a shallow reservoir in Western Poland

Gołdyn, Ryszard; Dondajewska, Renata; Szeląg-Wasielewska, Elżbieta; Szyper, H.

doi:10.1007/s10661-008-0259-9

Cited by 9 publications

(7 citation statements)

References 14 publications

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“…In turn, as a result of the flow of the River Pogona through the dam reservoir an increase in oxygenation was observed which resulted from the intensive photosynthesis process carried out by phytoplankton organisms. Such a situation was also found in the waters of the Antoninek reservoir (Gołdyn et al 2008). On the other hand, a slight decrease in the dissolved oxygen content in river water was observed below the outflow of wastewater from the treatment plant, which indicates a lower oxygen content in the treated wastewater or an increased oxygen uptake by microorganisms.…”

Section: Discussionmentioning

confidence: 52%

Changes in the quality of a small lowland river in Poland under the influence of pollution and a dam reservoir located in its course

Hansz

Kowalczewska‐Madura

2020

Limnological Review

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The study on a small lowland river was conducted in order to determine changes in water quality under external loading (inflow of treated wastewater, runoff from agricultural areas) and the location of a dam reservoir in its course. The 21 km long River Pogona (Greater Poland, Poland) is a small tributary of the Obra Canal in Kościan. In 2004, in its valley, the Jeżewo Reservoir, with an area of 78 ha, was utilized to supply the flow in the Obra Canal during the dry season and to irrigate agricultural areas. The river is also a receiver of treated sewage from the sewage treatment plant in Karolewo. The research, carried out in 2017 at six sampling stations in its course, showed that the discharge of treated wastewater resulted in an increase in conductivity, concentration of ammonium nitrogen, nitrites and total nitrogen in the waters of the River Pogona. On the other hand, the location of the Jeżewo Reservoir in its course contributed to an increase in water temperature, pH, dissolved oxygen, chlorophyll-a and nitrite concentration in the outflowing river. The results showed that the inflow of treated wastewater from the sewage treatment plant, surface runoff from the catchment area and the Jeżewo Reservoir formed in its course, influenced seasonal and spatial changes in the water quality of the River Pogona.

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Section: Discussionmentioning

confidence: 52%

Changes in the quality of a small lowland river in Poland under the influence of pollution and a dam reservoir located in its course

Hansz

Kowalczewska‐Madura

2020

Limnological Review

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“…iron-phosBrought to you by | MIT Libraries Authenticated Download Date | 5/9/18 4:42 PM phorus cycle). Therefore, low amount of BD-P in Antoninek is rather unexpected as the reservoir is continuously mixed by wind and oxygen deficits occurred only periodically during summer (Gołdyn et al 2009). Low Fe content might be caused by retention of this compound in Swarzędzkie Lake, situated upstream, however, it is more likely that deoxygenated microlayers formed on the surface of the sediment as a result of intensive organic matter decomposition and, thus, oxygen depletion.…”

Section: Discussionmentioning

confidence: 99%

“…Restoration measures were carried in 2002 and 2003 and emergent macrophytes together with sediments were removed. Partial improvement of outflowing water quality was achieved, especially in case of oxygen conditions, ammonium and nitrate nitrogen, total N and total P concentrations (Gołdyn et al 2009 (Fig. 1), situated along the main axis of the reservoir.…”

Section: Study Site and Methodsmentioning

confidence: 99%

The variability of phosphorus fractions in sediments of a shallow, restored Antoninek Reservoir (Poznań, Poland)

Dondajewska¹

2010

Limnological Review

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Spatial and temporal variability of phosphorus (P) fractions content in bottom sediments of a shallow preliminary reservoir was studied in Antoninek, situated in Poznań. Fractions were analyzed at least once in a season (more often in spring and summer) between August 2004 and November 2005 according to the fractioning protocol proposed by Psenner et al. (1988). Circa 10 cm thick sediment layers were collected from three study sites, situated along the main axis of the reservoir. The contribution of NH 4 Cl-P and BD-P, i.e. the most accessible fractions biologically was similar at all stations (usually below 10%). The share of other fractions increased according to the sequence NaOH-RP < NaOH-NRP < HCl-P < Res-P. Only at station 1 the amount of phosphorus related to organic matter was lower than with aluminum. The domination of Res-P fraction indicated that the main part of phosphorus in sediment is biologically unavailable, therefore the intensity of phosphorus loading from sediments shall be low. However, high organic matter content, noted in sediments of Antoninek Reservoir, determined great amount of NaOH-NRP fraction. Both parameters remained under the influence of mats of macroalgae, growing intensively in the reservoir during vegetation season. The role of sediments as a source of phosphorus for water column enlarged, due to increased organic matter decomposition, especially in periods of high water temperature in this shallow reservoir.

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“…In some climates flow discharge is highly variable along the year and water resources show considerable flow and volume variations. The dry season can be critical due to low-flow conditions, high temperatures and a limited dilution capacity [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…The residence time is not so often mentioned [e.g. 5,8]. Other characteristic usually not referred to is the vegetation cover: the USA EPA [9] found a strong association between water quality and the percentage of vegetated buffer existing at the catchment and surrounding the lake or reservoir.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Methodologies for Assessment of Urban Drainage Impacts in Lakes and Reservoirs

Barbosa¹

2012

TOEBMJ

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Abstract:The water quality of rivers, lakes or reservoirs changes in both short and long term. For a given catchment with known pollution sources, different combinations of hydrologic and pollutants discharges scenarios may result in different impacts in the water quality. The objectives of the present work were to analyze the methodologies currently used for assessment of pollution impacts in lakes and reservoirs, and to get an insight on how much research focus on urban drainage as a pollution source. Based on the evaluation of a sample of 17 papers, dated between 2000 and 2012, from different countries it was concluded that monitoring data is the most used method for studies in water quality of lakes and reservoirs. Records from historical databases or from continuous monitoring are used by some authors; but most of the time the research includes a designed monitoring program. It was interesting to realize that the application of three different methodologies -i) simple modeling; ii) simple monitoring and iii) analysis of long term monitoring data -to assess the impacts of road runoff and agriculture discharges in a reservoir in Central Portugal resulted in similar conclusions, emphasizing the importance of long duration monitoring records. Most of the analyzed papers evaluated agriculture pollutants. Nevertheless, it has been proved that road runoff may discharge pollutants in concentrations that exceed the limits for point wastewater discharges; therefore it seems there are improvements that should be made in future studies of pollutant impacts in lakes and reservoirs.

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An appraisal of changes in seasonal water quality during passage through a shallow reservoir in Western Poland

Cited by 9 publications

References 14 publications

Changes in the quality of a small lowland river in Poland under the influence of pollution and a dam reservoir located in its course

Changes in the quality of a small lowland river in Poland under the influence of pollution and a dam reservoir located in its course

The variability of phosphorus fractions in sediments of a shallow, restored Antoninek Reservoir (Poznań, Poland)

Analysis of Methodologies for Assessment of Urban Drainage Impacts in Lakes and Reservoirs

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