The Assessment of Environmental Changes of Selected Water Bodies in the Area of Cracow over the Past Two Decades

摘要

Six water bodies or their complexes - four in Cracow and two in the Commune of Niepolomice, Southern Poland - were studied focusing the changes they have undergone and the present state from the point of view of their attractiveness to the visitors. The degree of threat to the water bodies was also assessed. The highest grades were given to the ponds of Niepolomice (Zamkowa), due its well management. The lowest grades were attributed the ponds of Plaszow (also the most threatened pond) and Staniatki (probably a temporary situation). The least threatened complex of water bodies is the one in Przylasek Rusiecki. Two of the described water bodies (Dabie and Staniatki) diminished their area within the last 20 years and the pond of Plaszow diminished earlier.