5 Water Resources of Stagnant Waters
75
range of the last glaciation, approximately overlapping with the Oder and Vistula
River catchments. Materials used for calculations were hydrographic maps of Poland
at a scale of 1:50 000 and topographic maps at the same scale (both cartographic
documents were largely edited after 2000). A total of 712 maps were used for the analysis. Within the Oder River catchment, measurements were performed by Choi´ nski
[11], and the surface area of the Vistula River catchment was determined based on
calculations of Lipiecka [12].
The result of the above analysis is the map of the percent share of dam reservoirs
(Fig. 5.4). The applied ranges of the percent share correspond with those presented
by Majdanowski [13] on the map of lake density of Poland. The procedure permitted
direct comparison of the north and south Poland. The surface area of the Oder River
catchment south of the range of the last glaciation is 58 618.6 km
2 . Within the
catchment area, the total surface area of artificial water reservoirs was estimated
for 402.06 km
2 . The value is equivalent to 0.69% of the cover of the area with
dam reservoirs. The analogical range of the Vistula River has a surface area of
139 012.8 km
2 . The total surface area of dam reservoirs within its boundaries was
determined for 524.85 km
2 , equivalent to 0.38% of share in the total area. The surface
area of the western part of the country is therefore considerably more abundant in
Fig. 5.4 Percent share of dam reservoirs south of the range of the last glaciation ranges in accordance
with those adopted by Majdanowski [13]
75
range of the last glaciation, approximately overlapping with the Oder and Vistula
River catchments. Materials used for calculations were hydrographic maps of Poland
at a scale of 1:50 000 and topographic maps at the same scale (both cartographic
documents were largely edited after 2000). A total of 712 maps were used for the analysis. Within the Oder River catchment, measurements were performed by Choi´ nski
[11], and the surface area of the Vistula River catchment was determined based on
calculations of Lipiecka [12].
The result of the above analysis is the map of the percent share of dam reservoirs
(Fig. 5.4). The applied ranges of the percent share correspond with those presented
by Majdanowski [13] on the map of lake density of Poland. The procedure permitted
direct comparison of the north and south Poland. The surface area of the Oder River
catchment south of the range of the last glaciation is 58 618.6 km
2 . Within the
catchment area, the total surface area of artificial water reservoirs was estimated
for 402.06 km
2 . The value is equivalent to 0.69% of the cover of the area with
dam reservoirs. The analogical range of the Vistula River has a surface area of
139 012.8 km
2 . The total surface area of dam reservoirs within its boundaries was
determined for 524.85 km
2 , equivalent to 0.38% of share in the total area. The surface
area of the western part of the country is therefore considerably more abundant in
Fig. 5.4 Percent share of dam reservoirs south of the range of the last glaciation ranges in accordance
with those adopted by Majdanowski [13]