Changes of water quality in benchmark lakes in the Polish national monitoring network in the 1999-2004 period

• Autorzy: Soszka H. , Kolada A. , Gołub M.
• Języki publikacji: EN

Abstrakty

EN

The national monitoring network of benchmark lakes consists of ten lakes situated in different Polish lakelands. They do not receive wastewater from point sources of pollution and their catchment areas are predominantly forested. Changes in their water quality should be natural or almost natural due to very low anthropogenic pressure. In the majority of the benchmark lakes the values of eutrophication parameters during the 1999-2004 period did not exceed 0.060 mg dm^-3 P for total phosphorus or 10 μg dm^-3 for chlorophyll α, and Secchi disc readings generally exceeded 2.5 m. Trend analyses in the majority of cases did not reveal significant changes in eutrophication parameters over time.

Słowa kluczowe

EN

lake monitoring; eutrophication indices

• Wydawca: Institute of Oceanography University of Gdańsk
• Czasopismo: Oceanological and Hydrobiological Studies
• Rocznik: 2010
• Tom: Vol. 39, No.2
• Strony: 153--159
• Opis fizyczny: bibliogr. 7 poz., tab., wykr.

Twórcy

autor

Soszka H.

autor

Kolada A.

autor

Gołub M.

• Institute of Environmental Protection ul. Kolektorska 4, 01-692 Warszawa, Poland,

Bibliografia

• 1.Cydzik D., Soszka H., 2003, Changes in water quality of Polish lakes in the years 1991-2000 (based on lake monitoring results), Limnological Review, 3: 53-58
• 2.Cydzik D., Iwaniak M., Jarosiński W., Korol R., Sokołowska E. et al., 2005, Monitoring of surface stagnant waters (lakes), [in:] Quality state of rivers, lakes and the Baltic Sea based on results of research performed within the framework of state monitoring programme in 2003-2004, Warszawa, Biblioteka monitoringu środowiska, Inspekcja Ochrony Środowiska: 112-52, (in Polish with English summary)
• 3.European Commission, 2003, Common implementation strategy for the Water Framework Directive (2000/60/EC), Guidance document No 10, Rivers and Lakes - Typology, reference conditions and classification systems, Produced by Working Group 2.3 - REFCOND, Luxembourg, Office for Official Publications of European Communities, pp. 87,
• 4.Hillbricht-Ilkowska A., Kostrzewska-Szlakowska I., Wiśniewski R., 1996, Trophic differentiation of lakes along River Krutynia (Mazurian Lakeland) - present situation. long-term variability and trophic relationships, [in:] The functioning of river-lake system in a lakeland landscape: The Krutynia River (Mazurian Lakeland, Poland). Eds. Hilbricht-Ilkowska A., Wiśniewski R.J., Zeszyty Naukowe Komitetu "Człowiek i Środowisko" PAN, 13: 125-53 (in Polish with English summary)
• 5.Kudelska D., Cydzik D., Soszka H., 1994, Basic lake monitoring: a method manual, Biblioteka monitoringu środowiska, Warszawa, Inspekcja Ochrony Środowiska, pp. 42 (in Polish)
• 6.Kudelska D., Soszka H., Cydzik. D., 1997, Polish practice in lake quality assessment. [in:] Freshwater Quality: Defining the Indefinable?, Eds. Boon P.J., Howell D.L., Edinburgh, Scottish Natural Heritage, pp. 149-54
• 7.Vollenweider R.A., 1989, Global problems of eutrophication and its control, Symp.Biol.Hung., 38: 19-41