Trebon Basin

This biosphere reserve (declared as Protected Landscape Area on the national level, 70,000 hectares) is located largely in the shallow Trebon Basin in South Bohemia near the Austrian border. The region has been modified by human activities for more than eight centuries.

This semi-natural landscape comprises 460 artificial fishponds and lakes that were constructed in the 15th and 16th century and now constitutes the center of Czech fish-farming industry. The Trebon fishponds and Trebon peatlands, which are part of the core area of the biosphere reserve, are also listed among wetlands of international importance within the Ramsar Convention (designated 1990 and 1993 respectively).

Declaration Date: 1977
Surface Area: 700 km2
Administrative Division: South Bohemia

Human Activities:

  • Fish-farming
  • Forestry
  • Agriculture
  • Extraction of sand, gravel, peat
  • Tourism, recreation, spa, scientific research

Ecological Characteristics:

Biome: Temperate broad-leaf forests
Elevation: 410 - 550 meters above sea level
Climate: moderately warm region, mean annual temperature/ precipitation 7,8°C/650 mm

The Trebon Basin BR is a flat or slightly undulating region near the Austrian border that has been modified by human activities for more than 8 centuries. A specific feature is an extensive system of fishponds (shallow artificial lakes covering on area of 0,1 - 500 ha).

There are 460 fish-ponds interconnected by canals and ditches (13% of the BR is covered with water-bodies), most of fishponds were built in 14th- 16th century. The important ecosystems in the BR are various types of wetlands (fishpond littoral zones with reed and sedges belts, marshes, alder and willow carrs, wet meadows, floodplain forests, various types of mires – peat bogs and acidic fens.

Luznice is the main river axis of the BR. Forests cover 50% of the territory. Important landscape phenomena are fishpond dams and dikes, man-made canals and dykes, open sandpits, human settlements and historical landmarks. The BR is an important bird area, especially for water birds (nesting, migration).

Protection Classification:

At the national level:

  • Trebonsko Protected Landscape Area
  • 33 nature reserves and monuments
  • Natura 2000 – SPA (EU Bird Directive)
  • Natura 2000 – 20 SCI (EU Habitat Directive)
  • 2 Ramsar sites (T. Fishponds, T. Peatlands International)


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