Recent sedimentation and eutrophication of kruklin lake after artificial drop in water-level in the middle of 19th century

• Autorzy: Gąsiorowski M. , Hercman H.
• Języki publikacji: EN

Abstrakty

EN

Sediments of two short cores collected from two basins of Kruklin Lake were studied by means of 210Pb and Cladocera analyses. The 210Pb allowed to date sediments and was helpful to obtain changes of sedimentation rate during the last two centuries. The CRS model was applied to calculate sediments age. Sedimentation rate differed strongly (from 0.55 cm/yr to 6.25 cm/yr) not only in time, but also between each basin. An accurate chronology of sediments was the basis for tracking of palaeolimnological changes with Cladocera analysis. Cladoceran planktonic:littoral ratio reflects event of artificial drop of lake water-level in the middle of nineteenth century. However, this event was recorded only in sediments of the southern, shallower basin and we suggest, that cladoceran planktonic:littoral ratio is better representative in shallow lakes. Changes of Cladocera assemblage composition suggest also strong eutrophication of lake water during the last century.

Słowa kluczowe

EN

210Pb dating; cladocera; sedimentation rate; eutrophication; lake-level changes

• Wydawca: Institute of Geological Science Polish Academy of Science
• Czasopismo: Studia Quaternaria
• Rocznik: 2005
• Tom: Vol. 22
• Strony: 17--25
• Opis fizyczny: Bibliogr. 28 poz.

Twórcy

autor

Gąsiorowski M.

• Department of Quaternary Geology, Institute of Geological Sciences, Polish Academy of Sciences, 00-818 Warszawa, ul. Twarda 51/55

autor

Hercman H.

• Department of Quaternary Geology, Institute of Geological Sciences, Polish Academy of Sciences, 00-818 Warszawa, ul. Twarda 51/55

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