Internal phosphorus loading from bottom sediments of a shallow preliminary reservoir

Dondajewska, Renata

doi:10.2478/v10009-007-0043-0

Cited by 13 publications

(8 citation statements)

References 10 publications

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“…The highest P loading from bottom sediments was found in shallow Antoninek Reservoir, as stated in previous research, reaching 66.6 mg m -2 d -1 P (Dondajewska 2008). Intensive phosphorus release occurred due to microbiological decomposition of fresh organic matter, comprised of decaying microscopic filamentous algae.…”

Section: Discussionsupporting

confidence: 80%

Internal phosphorus loading in selected lakes of the Cybina River valley

Kowalczewska‐Madura

Dondajewska²,

Gołdyn³

2010

Oceanological and Hydrobiological Studies

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The aim of this study was to assess the ability of bottom sediments to release or accumulate phosphorus. Ex situ experiments with the use of undisturbed sediment cores were done in 11 lakes situated in the Cybina River valley (Wielkopolska, Poland). Phosphorus release was observed both in aerobic and anaerobic conditions, however greater values were noted in the latter ones. Maximum values reached 41.4 mg m -2 d -1 P and 12.2 mg m -2 d -1 P in anaerobic and aerobic conditions, respectively.

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Section: Discussionsupporting

confidence: 80%

Internal phosphorus loading in selected lakes of the Cybina River valley

Kowalczewska‐Madura

Dondajewska²,

Gołdyn³

2010

Oceanological and Hydrobiological Studies

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“…The much higher levels of phosphorus release from the bottom sediments that occurred at the end of spring was caused by decomposition of last year mats of filamentous green algae (Dondajewska 2008). Their mineralisation started when the water temperature significantly increased in spring (April, May).…”

Section: Discussionmentioning

confidence: 99%

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

Gołdyn

Dondajewska

Szeląg-Wasielewska

et al. 2008

Environ Monit Assess

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Following restoration changes in Antoninek Reservoir physico-chemical and biological processes in the water column and bottom sediments were measured to outline mechanisms of changes in nitrogen, phosphorus and organic matter concentrations during water flow through this reservoir. Intensive mineralisation of organic matter in the shallow sediments stimulated primary production and influenced increasing ammonia and nitrite nitrogen concentrations. Two main factors affected concentrations of phosphorus: (1) its presence in the external loads of river waters entering the reservoir, more important in the colder seasons as the water discharge was higher and (2) from the internal loads coming from bottom sediments. The quality of the river water during its flow through this reservoir improved for most parameters and seasons. However, concentrations of nutrients were still high in waters flowing out from the reservoir and in some months they were higher in the outflow than in waters entering the reservoir.

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“…In trying to exploit natural mechanisms of self-regulation, we make the ecosystem less prone to serious disturbance. Most data relating to the internal loading of lakes concerns shallow water bodies (e.g., Kozerski and Kleeberg 1998 ; Søndergaard et al 2001 ; Dondajewska 2008 ; Kowalczewska-Madura and Gołdyn 2009 ; Joniak and Kuczyńska-Kippen 2010 ; Kowalczewska-Madura et al 2010 ), but little is known about the release of phosphorus from deep, dimictic lakes (e.g., Kleeberg 1997 ; Murphy et al 2001 ), especially those subjected to restoration treatments (Kowalczewska-Madura et al 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Internal Phosphorus Loading from the Bottom Sediments of a Dimictic Lake During Its Sustainable Restoration

Kowalczewska‐Madura

Dondajewska

Gołdyn

et al. 2018

Water Air Soil Pollut

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The ribbon type Lake Durowskie (Western Poland) is currently undergoing a sustainable restoration process due to water quality deterioration, manifested in water blooms, low transparency, and oxygen deficits near the bottom sediments. Three restoration methods were applied: (i) hypolimnion aeration using two wind-driven pulverizing aerators installed at the deepest places, (ii) phosphorus inactivation using small doses of iron sulfate and magnesium chloride several times a year, and (iii) biomanipulation using pike fry stocking. Research on the exchange of phosphorus in the sediment-water interphase was conducted in the years 2009–2016 to determine the multiannual changes of internal phosphorus loading from bottom sediments during the restoration process. The sustainable approach resulted in a decrease of internal phosphorus loading and a gradual increase in the sorption capacity of bottom sediments, particularly noticeable in the last 2 years. The content of phosphorus in the sediment and in the interstitial water fluctuated, showing an increase during the first years of restoration and then a gradual decrease. It was proved that the process of sustainable restoration is cheap and does not interfere strongly with the ecosystem, although it is long-lasting. It should be continued for many years, especially in the case of continuous external loading of the lake with nutrients from the catchment area, i.e., until the water quality in the main tributary improves and the lake ecosystem stabilizes.

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Internal phosphorus loading from bottom sediments of a shallow preliminary reservoir

Cited by 13 publications

References 10 publications

Internal phosphorus loading in selected lakes of the Cybina River valley

Internal phosphorus loading in selected lakes of the Cybina River valley

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

Internal Phosphorus Loading from the Bottom Sediments of a Dimictic Lake During Its Sustainable Restoration

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