Influence of restoration methods on the longevity of changes in the thermal and oxygen dynamics of a degraded lake

Grochowska, Jolanta; Brzozowska, Renata; Łopata, Michał; Dunalska, Julita

doi:10.1515/ohs-2015-0003

Cited by 18 publications

(11 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Before the restoration, Długie Lake showed slow dynamics of the water mixing (Grochowska et al . ). The poor water mass dynamics was displayed by the lack of strong spring overturn, quickly setting and stable thermal stratification in summer, usually with a 2–3 m epilimnion, a sharp thermocline and a cold and thermally uniform hypolimnion, as well as a late (end of November) and short autumn overturn.…”

Section: Methodsmentioning

confidence: 97%

Influence of different recultivation methods on durability of nitrogen compounds changes in the waters of an urban lake

Grochowska

Brzozowska

2015

Water Environ J

Self Cite

View full text Add to dashboard Cite

The study was conducted on Długie Lake, which was fed with raw domestic sewage for 20 years. After preliminary conservation operations, the lake was restored by the artificial circulation and phosphorus inactivation methods. Before the restoration of lake, average amount of ammonia in the bottom water layer achieved a value of 20.71 mg/L, and Total nitrogen (TN) 22.89 mg/L. Start up of artificial aeration caused a distinct change in the concentration of nitrogen compounds in the lake. The intensive nitrification processes occurred due to improving oxygenation of the lower layer and increasing the temperature. It resulted in an increase of nitrate nitrogen concentration to about 1.30 mg/L. A tenfold decrease in ammonia and TN concentration has been achieved as a result of the artificial aeration. Concentrations of nitrogen compounds which were noted 8 years after termination of the lake recultivation were typical for reservoirs with moderate trophic status.

show abstract

Section: Methodsmentioning

confidence: 97%

Influence of different recultivation methods on durability of nitrogen compounds changes in the waters of an urban lake

Grochowska

Brzozowska

2015

Water Environ J

Self Cite

View full text Add to dashboard Cite

show abstract

“…These areas are frequently lack adequate sewerage, having only septic tanks which may fail to work properly, thus most of the wastewater infiltrates through the ground into the lake (Hall and Härkönen, 2006). Such usage brings about an acceleration of eutrophication and the aquatic ecosystem becomes extremely degraded (Zuccarini et al, 2011;Barałkiewicz et al, 2014;Grochowska et al, 2015). The lake can no longer be used recreationally and most of the other ecosystem services are also lost (Xu et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Response of vegetation to growing recreational pressure in the shallow Raczyńskie Lake

Rosińska

Gołdyn

2018

Knowl. Manag. Aquat. Ecosyst.

View full text Add to dashboard Cite

-Strong human impact accelerates eutrophication which deteriorates water quality and consequently prevents recreational use. Increasing trophy and low transparency induce macrophyte rebuilding. A gradual transformation of the land use of the direct catchment area of Raczyń skie Lake from agricultural to recreational has been observed over the last 45 years. In built-up areas sewage facilities were inadequate and septic tanks did not work properly and as a consequence most wastewater was able to infiltrate through the ground into the lake. The lake ecosystem became unstable and water blooms intensified. The aim of the study was to assess the changes in the composition of the lake vegetation over the last 45 years, during which the use of the direct catchment has changed and recreational pressure increased. A reduction of the number of plant communities from 24 to 15 and the disappearance of almost all the submerged vegetation was observed. The dominant reed beds (Phragmitetum communis, Typhetum angustifoliae) were unable to provide a sufficient barrier to the flow of pollution from the catchment because of the numerous gaps made for angling piers, bathing sites, jetties, etc. The macrophyte index indicated a bad ecological status. To improve the ecological status of Raczyń skie Lake it is necessary to introduce intensive protection and restoration treatments.Keywords: macrophyte community / submerged macrophyte / human impact / recreation / WFD Résumé -Réponse de la végétation à la pression récréative croissante dans le lac peu profond Raczyń ski. Un fort impact humain accélère l'eutrophisation, ce qui détériore la qualité de l'eau et, par conséquent, empêche l'utilisation récréative. L'augmentation de trophie et la faible transparence induisent la dégradation des macrophytes. Au cours des 45 dernières années, on a observé une transformation graduelle de l'utilisation des terres du bassin versant proche du lac Raczynskie, qui est passé de l'agriculture aux loisirs. Dans les zones bâties, les installations d'égouts étaient inadéquates et les fosses septiques ne fonctionnaient pas correctement, de sorte que la plupart des eaux usées pouvaient s'infiltrer dans le lac par le sol. L'écosystème du lac est devenu instable et la prolifération d'algues s'est intensifiée. L'objectif de l'étude était d'évaluer les changements dans la composition de la végétation lacustre pendant les 45 dernières années, au cours desquelles l'utilisation du bassin versant a changé et la pression récréative a augmenté. On a observé une réduction du nombre de communautés végétales de 24 à 15 et la disparition de presque toute la végétation submergée. Les roselières dominantes (Phragmitetum communis, Typhetum angustifoliae) n'ont pas été en mesure de fournir une barrière suffisante à l'écoulement de la pollution du bassin versant en raison des nombreuses brèches faites pour les pontons de pêche, les sites de baignade, les jetées, etc. L'indice des macrophytes indique un mauvais état écologique. Pour améliorer l'état écologique du lac R...

show abstract

“…A number of studies have been proposed for the evolution of lakes, studies on lake mainly focus on the lake changes at different time scales (Sironić et al, 2016), the landscape pattern evolution (Liu et al, 2014;Wu et al, 2016), the evolving types and causes of lakes (Jambrina-Enríquez et al, 2017;Shadkam et al, 2016), the impact of water pollution (Grochowska et al, 2015;Sevindik et al, 2014;Williamson et al, 2009), the management of water resources (Li et al, 2017;Zębek, 2014), and so on. The core concept of most methods is to calculate the total change of the lakes' area.…”

Section: Introductionmentioning

confidence: 99%

Information Mining of Spatio-Temporal Evolution of Lakes Based on Multiple Dynamic Measurements

Wang¹,

Troin²

2017

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

View full text Add to dashboard Cite

ABSTRACT:Lakes are important water resources and integral parts of the natural ecosystem, and it is of great significance to study the evolution of lakes. The area of each lake increased and decreased at the same time in natural condition, only but the net change of lakes' area is the result of the bidirectional evolution of lakes. In this paper, considering the effects of net fragmentation, net attenuation, swap change and spatial invariant part in lake evolution, a comprehensive evaluation indexes of lake dynamic evolution were defined,. Such degree contains three levels of measurement: 1) the swap dynamic degree (SDD) reflects the space activity of lakes in the study period. 2) the attenuation dynamic degree (ADD) reflects the net attenuation of lakes into non-lake areas. 3) the fragmentation dynamic degree (FDD) reflects the trend of lakes to be divided and broken into smaller lakes. Three levels of dynamic measurement constitute the three-dimensional "Swap -attenuation -fragmentation" dynamic evolution measurement system of lakes. To show its effectiveness, the dynamic measurement was applied to lakes in Jianghan Plain, the middle Yangtze region of China for a more detailed analysis of lakes from 1984 to 2014. In combination with spatial-temporal location characteristics of lakes, the hidden information in lake evolution in the past 30 years can be revealed.

show abstract

Influence of restoration methods on the longevity of changes in the thermal and oxygen dynamics of a degraded lake

Cited by 18 publications

References 23 publications

Influence of different recultivation methods on durability of nitrogen compounds changes in the waters of an urban lake

Influence of different recultivation methods on durability of nitrogen compounds changes in the waters of an urban lake

Response of vegetation to growing recreational pressure in the shallow Raczyńskie Lake

Information Mining of Spatio-Temporal Evolution of Lakes Based on Multiple Dynamic Measurements

Contact Info

Product

Resources

About