Szarcz Lake Explained

Szarcz Lake
Location:Szarcz, Pszczew (Poland)
Outflow:Męcinka river
Other Name:Szarcz Duży, Szarzeńskie Lake

Szarcz Lake is a lake located in the in the, in the Lubusz Voivodeship, in the Międzyrzecz County, Gmina Pszczew, at the northwestern edge of the village of Pszczew. The lake has been developed for tourism and recreation purposes. Numerous recreational buildings are located at the southeastern and western ends.

Location and description

Szarcz Lake is situated in the eastern part of the Międzyrzecz County, within the Zbąszyń Depression.[1] The lake is mainly surrounded by agricultural lands, with forests located only near the southern shore, beyond the slope of the Międzyrzecz–Międzychód railway line. The lakebed is hard and sandy but very diverse. The deepest parts of the lake are adjacent to significant shallow areas covered with emergent vegetation. Excess water is drained through a small stream to the north, passing through the,, and lakes, eventually reaching the Warta river.[2]

Hydronymics

The name Szarcz Lake appears in sources from 1564.[3] Until 1945, it was called Scharziger See. The current name was officially adopted on 17 September 1949.[4] According to official records compiled by the and the, the name of this lake is Szarcz.[5] [6] In documents of the Polish Angling Association, the lake is referred to as Szarcz Duży, while in the documentation of the Voivodeship Inspectorate of Environmental Protection, another name given is Szarzeńskie Lake.[7] [8]

Morphometrics

According to data from the, the surface area of the lake's water mirror is 1.7 km. The average depth of the water body is 7.9 m, and the maximum depth is 14.5 m. The water surface is at an elevation of 56.3 m above sea level. The volume of the lake is 13,465,800 m³.[9] The maximum length of the lake is 2.4 km, and its width is 1.3 km. The length of the shoreline is 7.3 km.

However, Adam Choiński determined, through planimetry on 1:50,000 scale maps, the size of the lake to be 1.6 km.[10]

According to the digital terrain model provided by Geoportal, the water surface is at an elevation of 55.8 m above sea level.[11]

According to the, the lake lies within the sixth-level catchment area of the Szarcz Lake Basin.[12] The MPHP identifier is 187781. The catchment area of the lake is 3.9 km².

Development

The waters of Szarcz Lake are managed by the in Poznań. They have established a fishing circuit that includes the waters of the Struga Lubikowska stream and Szarcz Lake (Fishing Circuit of Szarcz Lake on the Struga Lubikowska stream – No. 1).[13] The fishing operations on the lake are conducted by the Polish Angling Association District in Gorzów Wielkopolski.

The lake also serves recreational purposes. There are two designated bathing areas on the lake in accordance with the : OW Karina Beach on Szarcz Lake and the Municipal Beach on Szarcz Lake. In 2022, the water quality at both beaches was rated as excellent.[14] [15]

Water purity and environmental protection

According to data from 1993, 1999, and 2005, the lake's waters were classified as Class II in terms of cleanliness. Studies from 2016 classified the lake's waters as having a good ecological status, corresponding to Class II quality.[16] This quality class was maintained in 2019, with the macrobenthos and ichthyofauna conditions being the decisive factors for the second class, while the state of phytoplankton, macrophytes, and phytobenthos was rated as very good. In the same year, the chemical status of the waters was assessed as below good, with PBDEs and heptachlor content in fish tissues exceeding the norm. The water transparency was measured at 3.7 m.[17]

Szarcz Lake has been classified as moderately resistant to degrading external influences, placing it in the II category of susceptibility to degradation. This means it has average natural conditions. On one hand, it has fairly good morphometric conditions that protect it from the degrading impact of anthropogenic pollution, particularly characterized by a relatively large average depth and a very low annual water exchange rate (4%). On the other hand, the low thermal stratification negatively affects the lake's water quality.[18]

The entire lake is located within the Pszczew Landscape Park and in protected areas under the Natura 2000 program.[19] Under the Habitats Directive, the protected area is called the Obrzańskie Lakes Trough, while the Birds Directive is represented by the Pszczew Lakes and Obra Valley area.[20] [21]

Notes and References

  1. Book: Regionalna geografia fizyczna Polski: praca zbiorowa . 2021 . Bogucki Wydawnictwo Naukowe . 978-83-7986-381-5 . Richling . Andrzej . Poznań . 177 . pl . Solon . Jerzy . Macias . Andrzej . Balon . Jarosław . Borzyszkowski . Jan . Kistowski . Mariusz . 2024-07-09 . 2021-12-08 . https://web.archive.org/web/20211208150808/https://www.gov.pl/web/gdos/juz-jest-monografia-poswiecona-regionalnej-geografii-fizycznej-polski-wspomoze-audyty-krajobrazowe . live .
  2. Book: Klessa, L. . Życie jezior: praca zbiorowa . Marlin . 1996 . 978-83-905760-1-5 . Kamińska . K. . 36–37.
  3. Web site: Elektroniczny słownik hydronimów Polski - Szarcz . 9 July 2024 . eshp.ijp.pan.pl . pl . 14 August 2023 . https://web.archive.org/web/20230814081036/https://eshp.ijp.pan.pl/search/results/336833 . live .
  4. Web site: 17 September 1949 . M.P. 1949 nr 76 poz. 947 . 9 July 2024 . isap.sejm.gov.pl . pl . 10 December 2022 . https://web.archive.org/web/20221210141504/https://isap.sejm.gov.pl/isap.nsf/DocDetails.xsp?id=WMP19490760947 . live .
  5. Book: Nazewnictwo geograficzne Polski. Wody stojące . 2006 . Główny Urząd Geodezji i Kartografii . 978-83-239-9607-1 . Wolnicz-Pawłowska . Ewa . 1 . Warsaw . 338 . pl . Duma . Jerzy . Rieger . Janusz . Janusz Rieger . Czarnecka . Halina . 2024-07-09 . 2023-06-10 . https://web.archive.org/web/20230610071946/https://www.gov.pl/attachment/03c0741c-d2e0-4fe2-826f-bbda39cf94bf . live .
  6. Web site: 1 January 2024 . Państwowy Rejestr Nazw Geograficznych – nazwy obiektów fizjograficznych . 9 July 2024 . dane.gov.pl . pl . 25 September 2022 . https://web.archive.org/web/20220925114725/https://dane.gov.pl/pl/dataset/780,panstwowy-rejestr-nazw-geograficznych-prng/resource/30103/table . live .
  7. Book: Szenfeld, Marzena . Stan czystości jezior województwa gorzowskiego w latach 1993-97 . 1998 . Państwowa Inspekcja Ochrony Środowiska . 978-83-7217-028-6 . Biblioteka Monitoringu Środowiska . Gorzów Wielkopolski . 54–56 . pl.
  8. Web site: Wykaz wód . https://web.archive.org/web/20130511043158/https://www.pzw.org.pl/gorzow/cms/3232/nasze_wody_ . 11 May 2013 . www.pzw.org.pl . pl.
  9. Book: Atlas jezior Polski: praca zbiorowa. Jeziora Pojezierza Wielkopolskiego i Pomorskiego w granicach dorzecza Odry . 1996 . Bogucki Wydawnictwo Naukowe . 978-83-86001-29-3 . Jańczak . Jerzy . I . Poznań . 42–43 . pl.
  10. Book: Choiński, Adam . Katalog jezior Polski . 2006 . Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza . 978-83-232-1732-9 . Poznań . 542 . pl.
  11. Web site: Geoportal krajowy . 9 July 2024 . mapy.geoportal.gov.pl . pl . 14 August 2023 . https://web.archive.org/web/20230814122252/https://mapy.geoportal.gov.pl/imap/Imgp_2.html?locale=pl&gui=new&sessionID=7274555 . live .
  12. Web site: Hydroportal . 9 July 2024 . www.gispartner.pl . pl . 13 April 2024 . https://web.archive.org/web/20240413181755/https://www.gispartner.pl/ . live .
  13. Web site: 20 December 2017 . Rozporządzenie Dyrektora Regionalnego Zarządu Gospodarki Wodnej w Poznaniu z dnia 20 grudnia 2017 r. zmieniające rozporządzenie w sprawie ustanowienia obwodów rybackich . 9 July 2024 . e-dziennik.szczecin.uw.gov.pl . pl . 5 April 2024 . https://web.archive.org/web/20240405150019/https://e-dziennik.szczecin.uw.gov.pl/WDU_Z/2017/5427/oryginal/akt.pdf . live .
  14. Web site: Kąpielisko Gminne nad jeziorem Szarcz Duży . 9 July 2024 . sk.gis.gov.pl . pl . 4 June 2024 . https://web.archive.org/web/20240604232703/https://sk.gis.gov.pl/index.php/kapielisko/500 . live .
  15. Web site: Kąpielisko OW Karina nad Jeziorem Szarcz Duży . 9 July 2024 . sk.gis.gov.pl . pl . 14 August 2023 . https://web.archive.org/web/20230814073725/https://sk.gis.gov.pl/index.php/kapielisko/705 . live .
  16. Web site: 26 December 2017 . Ocena jednolitych części wód powierzchniowych rzecznych i jeziornych w województwie lubuskim za rok 2016 . https://web.archive.org/web/20210112203154/http://www.zgora.pios.gov.pl/ocena-jednolitych-czesci-wod-powierzchniowych-rzecznych-i-jeziornych-w-wojewodztwie-lubuskim-za-rok-2016/ . 12 January 2021 . www.zgora.pios.gov.pl . pl.
  17. Web site: Ocena stanu jednolitych części wód jezior w latach 2014-2019 na podstawie monitoringu - tabela . 9 July 2024 . www.gios.gov.pl . pl . 19 January 2024 . https://web.archive.org/web/20240119054109/https://www.gios.gov.pl/pl/mkoopz/8-pms/99-jeziora . live .
  18. Web site: 23 July 2022 . Ocena podatności na degradację (1993-2005) . https://web.archive.org/web/20220723144429/http://zgora.pios.gov.pl/wios/images/stories/pms/jeziora/klas/2006/Szarcz_kp_2005.htm . 23 July 2022 . zgora.pios.gov.pl . pl.
  19. Web site: Pszczewski Park Krajobrazowy . https://web.archive.org/web/20220704153403/https://crfop.gdos.gov.pl/CRFOP/widok/viewparkkrajobrazowy.jsf?fop=PL.ZIPOP.1393.PK.41 . 4 July 2022 . crfop.gdos.gov.pl . pl.
  20. Web site: Obszar Natura 2000 - Jeziora Pszczewskie i Dolina Obry . https://web.archive.org/web/20220704153704/https://crfop.gdos.gov.pl/CRFOP/widok/viewnatura2000.jsf?fop=PL.ZIPOP.1393.N2K.PLB080005.B . 4 July 2022 . crfop.gdos.gov.pl . pl.
  21. Web site: Obszar Natura 2000 - Rynna Jezior Obrzańskich . https://web.archive.org/web/20220704153923/https://crfop.gdos.gov.pl/CRFOP/widok/viewnatura2000.jsf?fop=PL.ZIPOP.1393.N2K.PLH080002.H . 4 July 2022 . crfop.gdos.gov.pl . pl.

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