| Abstract: | The two eutrophicated reservoirs Husinec (2.6 km3, 35 ha, zmax 18 m, MQ 1.87 m3/s) and ?ímov (34.5 hm3, 216 ha, zmax 44 m, MQ 4.14 m3/s) show concentrations of total phosphorus of 10… 50 mg/m3 and chlorophyll contents of 7… 36 mg/m3 in the summer season. For both reservoirs a good correlation exists between the chlorophyll concentration and the density of the phytoplankton (20 · 103… 13 · 106 ind./l). With average concentrations of 10… 20 mg/m3 chlorophyll a in summer, the water can be treated for producing drinking water only at a higher expenditure. The water quality will be improved by a reduction of the phosphorus load. |
