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The Reconstruction of the Bathymetry of The Non-Existent Krokowo Lake

Ptak M.

Quarterly of Environmental Engineering and Design

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2018

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Vol. 171 (51)

36--42

EN

The intensive drainage works conducted a few centuries ago in Poland contributed to a significant depletion of the hydrographic network. Currently, there are more and more frequent problems with water stress and the introduction of a programme aiming at the retention development, i.e. through the construction of artificial reservoirs or damming up natural lakes. The paper presents the reconstruction of the morphometry of the non-existent Krokowo lake. It was found that the reservoir with the surface area of 58 ha and volume of 2.6 million m3 disappeared as a result of the anthropogenic impact. In the light of an increase in the retention possibilities in Poland, the restoration of natural lakes to their original condition seems to be an interesting approach. Renaturalisation of these environmental elements in the context of the balance components' improvement seems to be more justified that the creation of new (artificial) components.

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Shells of Unio tumidus (Bivalvia, Unionidae) from an archeological site and contemporary population inhabiting the same lake

Ożgo M., Bogucki Z., Nowakowska M.

Polish Journal of Ecology

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2012

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Vol. 60, nr 4

839--844

EN

Mollusc shells from archaeological excavations are often well preserved and allow for species identification and measurements. Large shell assemblages can provide information for environmental reconstruction and investigation of anthropogenic impacts. In this study we compare freshwater mussel shells from a shell midden excavated on a lake island in northern Poland, dated 2,700–2,600 BP, with contemporary populations from that lake. No changes in species composition occurred, with only Unio tumidus and Anodonta sp. present in the prehistoric sample, and Unio tumidus and Anodonta anatina in the contemporary one. In both the archaeological and contemporary samples, shells of Unio tumidus were relatively small (mean shell length 49.3 ± 5.2 mm, max 64 mm, and 46.0 ±5.9 mm, max 61 mm, respectively). However, the values of all measured characteristics (length, height, mass, and thickness) were significantly lower in the contemporary compared to prehistoric shells. In modern times, in the region of the study largescale forest clearing and conversion of land into agricultural areas occurred; presently areas of intensive agriculture directly adjoin the lake. Dwarfing of the shells likely results from anthropogenic deterioration of mussel habitat.

3

Stosowanie informacji przestrzennej dla wyznaczenia znaczących oddziaływań antropogenicznych i ich skutków na wody rzek Polski

Walczykiewicz T., Łasut E., Kubacka D., Barszczyńska M., Rataj C., Opial-Gałuszka U., Zientarska B.

Roczniki Geomatyki

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2007

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T. 5, z. 3

173-181

EN

The paper discusses the use of GIS tools and spatial information for defining significant anthropogenic impact and its effect on the waters of Polish rivers. In the EU the basic legal act regulating the issues of protecting water resources and ecosystems dependent on water resources is the Water Framework Directive 2000/60/WE (WFD). According to the requirements of the above Directive, EU member countries will have to achieve good status of surface waters by the end of 2015. Evaluating the effects of anthropogenic pressure on water environment is the first step conditioning future remedial actions. The identification of significant impacts was carried out with the use of GIS technology, which was in accordance with the guidelines for implementing RDW in EU member countries. The paper presents recommendations of the Water Framework Directive as regards the analysis of anthropogenic pressure. In order to carry out this analysis geospatial information was necessary. Some of the data were prepared within the framework of previous stages of RDW implementation, while the remaining data were obtained especially for the purposes of the above mentioned analysis. The paper presents this data as well as the methodology adopted for identifying significant anthropogenic impacts. The basic spatial unit for which the analysis was carried out was so called .aggregated part of surface waters. (SCWP). This term stands for the area that encompasses several adjoining sub-basin areas of similar character, identified for the purposes of water management planning. Also, examples of results of GIS analyses are provided, performed with the use of data from Regional Data Bank that was created and is managed by the Central Statistical Office (GUS). Additionally, the paper describes indicators used for the assessment of morphological changes as well as methods to calculate selected examples of indicators. The result of spatial analyses is final assessment of possible obstacles to achieving good status of waters by the end of 2015, prepared on the basis of information on hydrology and morphology of watercourses as well as on causative factors.

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Baza danych niezbędna do pogłębionej analizy znaczących oddziaływań antropogenicznych i ich skutków

Rataj C.

Gospodarka Wodna

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2007

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Nr 1

22-28

PL

W artykule zawarto informacje o dotychczas wykonanych pracach związanych z wdrażaniem Ramowej Dyrektywy Wodnej. W 2004 r. dokonano wstępnej oceny znaczących oddziaływań antropogenicznych i ich wpływu na wody. Prace te były podstawą utworzenia bazy danych niezbędnej do wykonania pogłębionej analizy oddziaływań i oceny ich wpływu, Zawartość merytoryczną bazy opracowano na podstawie metodyki Politechniki Krakowskiej, zmodyfikowanej przez zespół pracowników IMGW Oddział w Krakowie na podstawie doświadczeń z jej wdrażania. Doświadczenia zdobyte przy wykonywaniu tego zadania wykazały brak jednorodnych numerycznych baz danych w Polsce, a co za tym idzie konieczność utworzenia bazy danych, spełniającej warunki narzucone przez RDW. W 2005 r. wykonano projekt bazy, do której dołączono dostępne dane oraz wskazano sposób pozyskania pozostałych. Zaprojektowano zawartość merytoryczną bazy danych, składającą się z 44 zbiorów posegregowanych w pięciu grupach funkcyjnych. Uzupełnienie danymi zaprojektowanej bazy daje możliwość ponownego, pogłębionego określenia oddziaływań antropogenicznych i oceny ich wpływu na wody powierzchniowe i podziemne oraz ustalenie części wód zagrożonych nieosiągnięciem celów środowiskowych.

EN

The article contains information on the hitherto conducted works related to the implementation of the Framework Water Directive. In 2004, a preliminary analysis of the significant anthropogenic impacts and their influence of waters was conducted- Those works were the basis to create a database necessary to perform a detailed analysis of those impacts and an assessment of their influence. The factual contents of the database were elaborated with the use of Krakow University of Technology's methodology, modified by a team of specialists of the Institute of Meteorology and Water Management, Division in Krakow, on the basis of experience acquired during its imlementation. The experience acquired at the realisation of this task indicated lack of uniform numeric databases in Poland and, therefore, the necessity to create a database fulfilling the requirements imposed by the Framework Water Directive. In 2005, a draft version of the database was prepared, including the a available data and indicating method to acquire the remaining information. The factual contents of the database were designed - 44 sets divided into five function groups. The supplement of the designed database gives the possibility of repeated, deepened determination of the anthropogenic impacts and assessment of their influence on surface and underground waters, as well as identification of waters that may not achieve the environmental objectives.