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Łęgi Odrzańskie, Poland
Poland, Dolnośląskie, Środa Śląska
Łęgi Odrzańskie in Poland, Central Europe (Natura 2000). The surrouding areas are periodically flooded by the river, which is teeming with life. A huge variety of plants and animals, including 88 endangered species listed in the Red Books, are found here. This amazing land became the inspiration for my research.
- Submitted by
- Alek Halczuk
- Approved by
- Alexey Malyshev & Gireg Allain
- GPS
- 51.2445831, 16.5615559
- Geographical region
- Eastern Europe
- Drainage Basin
- Baltic Sea
- River catchment
- Odra River
- Water body type
- Oxbow lake
- Water body name
- Łęgi Odrzańskie
- Water body part
- Flood plain
- Water body course
- Middle course
- Water body: tributary of
- River
- Tributary name
- Odra
Videos above and below water
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Water Chemistry
Water information
- Water type
- fresh-water
- Water color
- Clear water
- Water transparency
- Medium
- Concentration of sediments
- Medium
- Water temperature
- 20 °C
- Water flow/curent
- Slow
Chemical parameters
- pH
- 8
- Conductivity
- 360
- GH
- 24 mg/l
- dGH
- KH
- 13 mg/l
- dKH
- Dissolved Oxygen
Substrate in nature
- Sand
- Beige
- Pebble/Gravel
- Stone
- Beige
- Stone form
- Silt/Mud
- Beige
- Leaves
- Driftwood
- Many
- Submerged terrestrial vegetation
- Yes
Aquatic Biotope
- Date of collecting
- 24/06/2021
- Collecting area
- Backwaters
- Water depth
- 1,0m
- Air temperature
- 28 °C
- Sunlight
- Full sun
Environment
- Environment
- Affected by human activity
- Affected by human activity
- Pollution
- Pollution
- Moderate
- Surrounding area
The Oder is the second largest river in Poland. In its middle course, between Brzeg Dolny and Głogów (about 150 km), there is a land called Łęgi Odrzańskie. Its area is about 500 square kilometres. Many natural landscapes and habitats of the great river valley have been preserved here. Riparian forests, alder forests, meadows, oxbow lakes and riverside slopes are subjected to periodic floods. The land is home to a huge number of flora and fauna species. We find here 88 endangered species which have entered in the Red Books. The area in this respect is unique in Europe and beyond.
Łęgi Odrzańskie is located in the temperate climate zone. Annual rainfall approx. 540 mm / m2; temperature 9.7 ° C (from -30 ° C to + 38 ° C). The average insolation is 1556 hours a year.
- Underwater landscape
The backwaters in this area are densely covered with marsh vegetation (Phragmites L., Carex L.) The visible root systems of grasses and trees create an impenetrable tangle. Fallen trees and branches form a real maze in which fry of many fish species can hide. The bottom is covered with silt and organic matter deposited in the flooding river.
Fish: Leuciscus aspius, Misgurnus fossilis, Gasterosteus aculeatus, Gymnocephalus cernua, Alburnus alburnus, Barbus barbus, Vimba vimba, Gobio gobio, Cobitis taenia.
Plants: Trapa natans, Potamogeton acutifolius, Ceratophyllum demersum, Potamogeton natans, Polygonetum natantis, Nymphaea alba, Salvinia natans.
Wetland plants:Circaea lutetiana, Carex riparia, Carex acutiformis (Curtis), Carex paniculata, Carex elata, Carex gracilis, Juncus sffusus, Equisetetum fluviatilis, Eleocharis palustris, Phragmitetum australis.
- Threats to ecology
The land is characterized by an enormous wealth of rare and endangered natural habitats. There are of 88 species of plants and animals listed in the Red Books published by the International Union for Conservation of Nature. It is unique in Europe. The following species should be mentioned here: Romanogobio albipinnatus, Leuciscus aspius. Plants such as: Salvinia natans, Trapa natans L., Gentiana pneumonanthe, Iris sibirica. The area plays the role of the ecological corridor Econet-Polska.
Threats to the area: lowering of groundwater in the Odra River valley related to the dam in Brzeg Dolny as well as climate changes, water pollution. Introducing alien species of animals, trees and shrubs.
Riparian zone
- Trees near the aquatic habitat
-
Many - Salicetum triandro-viminslis, Salix alba, Salix fragilis, Salix cinerea, Alnus mill, Populus nigra, Populus alba
