Summary: | Morphological and hydrological analyses of the characteristics of the Serbian
border zone towards Bulgaria were performed. The morphological analysis
included the mountain (Stara Planina, Tupižnica, Svrljiške Planine, Suva
Planina and Vidlič), structural basin (Zaječar, Knjaževac, Svrljig and Bela
Palanka) and valley (Veliki Timok, Beli Timok, Visočica, Dragovištica) parts.
Within the hydrological analysis, the areas with the highest and lowest
annual amount of precipitation were identified, as well as the hottest and
coldest areas. The change of river basins runoff was analysed, as well as the
distribution of waters throughout the year in the studied area. The most
important elements of the water balance were shown and the hydrological
characteristics of the karst terrain were analysed.
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