An attempt to assess the impact of anthropopressure on the ecological state of urbanised watercourses of Krakow Conurbation and the difficulties encountered
Wydanie: 4 / 2010
Kategorie: Pollution and environment
Rivers and streams in cities are treated as urbanised watercourses because of their significant transformation. Their load, channeling and incorporation into the water-sewerage infrastructure are often so considerable that such watercourses can hardly be recognised as an intrinsic component of surface waters. Anthropopressure, as reflected in quantitative and qualitative degradation caused by flow regulation and economic development in the drainage basin area, makes evaluation of the impact of human activity on the aquatic environment somewhat difficult. Based on the recommendations of the Water Framework Directive, an attempt has been made to assess the ecological state of selected tributaries of the Prądnik-Białucha River within the Krakow Conurbation. Aquatic environment sampling of the Sudół Dominikański (Rozrywka) watercourse was performed (September 2005) in order to determine some physicochemical, chemical and biological parameters, paying particular attention to macrophytes. The parameters measured on site: pH, electrolytic conductivity and Eh of water and bottom sediments, and sozological observations, were subjected to analysis. In the laboratory, concentrations of heavy metals, both in water and in solid particles (sediments and suspended matter) and anions in water were determined. The environmental state of the Sudol Dominikariski watercourse was compared with that in the area of the Prądnik-Białucha River valley, for which an assessment had been conducted in the previous year (September 2004).
Wardas M., Aleksander-Kwaterczak U., Jusik S., Hryc B., Zgoła T., Sztuka M., Kaczmarska M., Mazurek M. 2010. An attempt to assess the impact of anthropopressure on the ecological state of urbanised watercourses of Krakow Conurbation and the difficulties encountered. J. Elem. 15(4): 725-743.
Słowa kluczowe:ecological state, watercourse, sediments, macrophytes