Slovenia
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Highlights
Overview of Water Resources
Slovenia is a country rich in water resources. Rainfall during an average year amounts to 1,500 mm, reaching 3,000 mm in the west and 800 mm in the east. From a total average precipitation of 32.2 billion m3/year, about 18.7 billion m3 drain into the rivers (of which approximately 80% flow to the Danube and almost 20% to the Adriatic Sea). The remaining precipitation infiltrates groundwater or evaporates.
The water abstracted from groundwater aquifers and springs is used for public supply. Water balances for individual aquifers are not available. The used aquifers are mostly shallow and located in the gravel beds along the valleys, where urbanization, industry and agriculture are concentrated. A large quantity of water from rainfall and runoff infiltrates the Karstic aquifers.
Groundwater in gravel bed aquifers is located in the proximity of water users and easily tapped. The disadvantage of these sources is their exposure to the effects of urbanization, and to other environmental impacts which are difficult to control. These aquifers are located in geological formations of the Miocene to Quaternary era. They are mostly unconfined, with a relatively shallow water level. They replenish directly through the unsaturated zone and also by direct infiltration along rivers.
The south-western part of Slovenia (about 44% of the total territory) is geologically composed of carbonate rock, i.e. limestone and dolomite, the Karst region. Large underground flows occur in its fractured formations. High fluctuations of the water-table, particularly in dry periods, severely restrict direct pumping from these aquifers for water-supply. Thus, any use of water from these aquifers occurs from spring discharges, flowing along faults. Aquifers are explored by the Slovene Geological Survey, which keeps most of the information concerning their characteristics, water balances and potential uses.
Read more about water resources in Slovenia
Projects
UNDP-Projects
National:
Regional:
Others
Reports
Slovenia, Freshwater Country Profile
Slovenia, Sanitation Country Profile
Slovenia Country Profile for the Johannesburg Summit 2002
Slovenia: A Case Study - Related Best Practice or Lessons Learned in Water and Sanitation
Slovenia Environmental Performance Review, Chapter 5
Resources and Links
Contacts
- CoP-Members
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