Lubān lake

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Lubān lake
Lubāns lake (Latvia) .jpg
Geographical location Latvia ( Vidzeme / Latgale border )
Tributaries Rēzekne , Malta
Drain Aiviekste
Data
Coordinates 56 ° 46 ′  N , 26 ° 52 ′  E Coordinates: 56 ° 46 ′  N , 26 ° 52 ′  E
Lubān Lake (the Latvian river system)
Lubān lake
Altitude above sea level 90  m
surface 82.1 km² (1998)dep1
length 15.7 km
Maximum depth 3.5 m
Catchment area 2040 km²
Template: Infobox Lake / Maintenance / EVIDENCE AREA Template: Infobox Lake / Maintenance / EVIDENCE MAX DEPTH Template: Infobox Lake / Maintenance / EVIDENCE Catchment Area

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