Thematic Maps of the Danube River Basin - ICPDR

Thematic Maps of the Danube River Basin – June 1999 5
Table 1 continued
32. Eastern Pre-Carpathians 750 – 1,000 UA RO
33. Maramures Mountains 750 – 1,000 RO
34. Transilvania 600 – 750 RO
35. South Carpathians 1,000 – 1,500 RO
36. South Carpathian Ridges 1,500 – 2,000 RO
37. Southern Pre-Carpathians 750 – 1,000 RO
38. Apuseni Mountains 1,000 – 1,500 RO
39. Banat & Western Balkan
Mountains
750 – 1,000 Sofia (588m): 650 mm RO YU BG
40. Balkan Ridges 1,000 – 1,500 BG
41. Bulgarian Danube Hills 600 – 750 BG
42. Great Romanian Plain 500 – 600 Bucarest (82m): 650
mm
RO
43. Moldova Hills 500 – 600 RO MD
44. Balta Danube Below 500 RO
45. Delta - Liman Below 500 Sulina (9m): 505 mm RO UA MD
The Dinaric Mountains form the borderline of the south-eastern Danube basin which is under
mediterranean (southern Sava tributaries) and continental influence (Drava-Mura lowlands).
Precipitation is over 1,000 mm along the Slovene-Croatian border, along the Bosnian mountain
ridges and the Albanian Alps, and goes down below 700 mm in the Danube/Pannonian plains. The
Southern Morava valley (Serbia/Kosovo) is a relatively dry, north-south directed barrier (average
rainfall at 700 mm, evapo-transpiration at 550 mm) between the Bosnian mountains and the
Banat/Western Balkan mountains.
The moist Balkan mountain ridges form the southern borderline of the lower Danube and supply
water for the relatively hot and dry Bulgarian hills and lowlands. East of the Carpathians, the huge
plain of the Romanian Lowlands and the Moldova hills are subject to a temperate-continental dry
climate along the lower Danube resp. the Siret and Prut rivers.
The lowlands around the Balta Danube, the liman lakes and the Danube delta receive an annual
precipitation of partly less than 400mm/year. Frequent droughts and a very high evapotranspiration
are balanced by riverine moisture (high groundwater, network of islands and lakes, floodplains).