Lubān lake
Lubān lake | ||
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Geographical location | Latvia ( Vidzeme / Latgale border ) | |
Tributaries | Rēzekne , Malta | |
Drain | Aiviekste | |
Data | ||
Coordinates | 56 ° 46 ′ N , 26 ° 52 ′ E | |
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Altitude above sea level | 90 m | |
surface | 82.1 km² (1998) | |
length | 15.7 km | |
Maximum depth | 3.5 m | |
Catchment area | 2040 km² |
The Lubān Lake (German also: Lubahnsee , Latvian : Lubāns , also: Lubānas ezers or Lubāna ezers ) is the largest lake in Latvia .
The lake is located in the center of a depression in eastern Latvia and is fed by the Rēzekne and Malta rivers (directly until 1966). Its outflow is via the Aiviekste River into the Daugava .
Regulatory work
To curb the regular spring floods, various dams , sluices , canals and ditches have been built since the middle of the 19th century . During a flood at the beginning of the 20th century, an area of 650 km² was flooded. By regulating the outflow into the Aiviekste from 1929 to 1939, the water level fell by several meters. The Meirān Canal in the south-west of the lake leads the former tributaries Malmuta and Lisiņa directly into the Aiviekste. The lake had its lowest water level in the mid-1970s. At that time, Lake Rāzna was the largest lake in Latvia for some time . Around 180 km² of former swamps and floodplains in the Lubānas basin are now drained and can be used for agriculture.
The surface of the lake fluctuates very strongly with the water level:
- 1850: 97.7 km² ( 92.75 m )
- 1900: 90.4 km²
- 1974: 24.85 km² ( 90.7 m )
- 1995: 80.7 km²
- 1998: 82.1 km²
natural reserve
A nature reserve has existed since 1999, which was significantly expanded in 2009. The wetlands are an important breeding area for some rare bird species . There are 14 different types of fish in the lake .
literature
- Guntis Kavacs (Ed.): Latvijas daba. Enciklopēdija. 6 volumes. Latvijas Enciklopdija et al., Rīga 1994–1998, ISBN 5-89960-049-7 .
Web links
- Geological details
- Database of the Latvian Lakes Society (Latvian / English)
- Article Lubān-See in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)