Dümmer
Dümmer | |
---|---|
Damme | |
Designated | 26 February 1976 |
Reference no. | 85[1] |
The Dümmer (ⓘ) or officially Dümmer See is a large lake in southern Lower Saxony (Germany). It has a surface of 13.5 km2 and an average depth of one metre. Its elevation is 37 metres.
Dümmer is a popular resort for water sports, but also an important
Etymology
The word "diummeri" is first attested in 965. „Dümmer“ ist probably derived from "dummerig", meaning moist or shaded, and "Meer“, meaning sea. In northwestern Germany, "Meer" is the traditional term for still waters surrounded by marshes (see: "Steinhuder Meer" and "Zwischenahner Meer"). Possibly, there is also a connection between Dümmer and the southern dutch word „doom“ ("mist", "broom").[2]
The Dümmersee: Diummeri … westphalian for dumb, moist, damp (regarding land), norwegian dumma, unclear air, misty corner. The second part is meri, the land sea.[3]
Location
The Dümmer is located in the 300-acre (1.2 km2) Dümmer depression. One and a half miles to the west, the Damme Hills begin to rise, eventually reaching a height of 145 m. Around the lake are fens (Niedermoore) and raised bogs (Hochmoore). The lake lies in the Dümmer Nature Park, which is just under 500 km2 in area, and in which the Damme Hills and Stemweder Berg form the central elements of the landscape.
The open water of the lake belongs entirely to the district of
Character
The Dümmer is, after the Steinhuder Meer, the second largest lake in Lower Saxony. With its water surface of 13.5 km ² - the area within the ring dyke including siltation zones is 16 km ² - and maximum water depth of just 1.50 m, it is good for swimming and water sports. The shallow lake with its flat beaches on the western and eastern shore is up to 5 km long from north to south and up to 3.4 km wide from west to east.
The lake is crossed by the
The fish-filled lake, which is also a breeding and resting place for birds, has a variety of flora and fauna, which is why the western and the southern shore of the lake are largely protected.[4]
Although the lake is only about a metre deep on average, very rich water sources and the Hunte itself ensure that its water level is relatively constant. Previously these headstreams combined with regular heavy rainfall to cause flooding, so that in the 1940s work began to build dykes around the lake. In the period 1941-1945 foreign forced labour was used for this on a large scale.[5] The reclamation and subsequent lack of annual flooding resulted in algae growing in large quantities in the lake and hence depriving most other organisms of oxygen. The low water level was caused by heavy silting, also a result of dyking the lake. With the help of several locks it was possible to control the high water levels artificially without greatly interfering with nature. Nevertheless, the Dümmer suffers from heavy nutrient pollution caused by intensive agriculture.
The remains of
References
- ^ "Dümmer". Ramsar Sites Information Service. Retrieved 25 April 2018.
- ^ Hermann Friedrich Jellinghaus: Die westfälischen Ortsnamen nach ihren Grundwörtern. 1847, S. 103. Artikel mar, mer (Digitalisat).
- ^ Hermann Jelinghaus: Dorfnamen um Osnabrück, Osnabrück 1922, S. 10
- ^ Niedersächsischer Landesbetrieb für Wasserwirtschaft, Küsten- und Naturschutz (NLWKN): Naturschutzgebiet "Dümmer"
- ^ "Otwin Skrotzki: Dümmer See". Archived from the original on 2013-02-10. Retrieved 2010-08-22.
Sources
- Friedrich, Ernst Andreas (1980). Naturdenkmale Niedersachsens. Hanover. ISBN 3-7842-0227-6
- Helbig, Andreas J., Ludwig, Jürgen and Belting, Heinrich (1990). Die Vögel des Dümmer-Gebietes. Avifauna eines norddeutschen Flachsees und seiner Umgebung (Naturschutz und Landschaftspflege in Niedersachsen 21). Hanover
- Klohn, Werner (1992). Probleme der Raumgestaltung in der Dümmerniederung Vechta
- Klohn, Werner (1986). Verbreitung, Struktur und Funktion der Kleinstwälder und Gehölze in der Dümmerniederung und ihren Randgebieten Vechta
- Klugmann, Ulrike and Villwock, Ingeborg (1984). Dümmer und Wiehengebirge (Naturmagazin "Draußen", Heft 35). Hamburg
- Sanden-Guja, Walter (1960). Der große Binsensee. 2nd expanded edition, Stuttgart
- Schmidt, Arno (1955). Seelandschaft mit Pocahontas. Erzählung.
- Seehafer, Klaus (1980). Der Dümmer See in Farbe. Ein Reiseführer für Naturfreunde. Stuttgart
External links
- Media related to Dümmer at Wikimedia Commons
- Nixdorf, B.; et al. (2004), "Dümmer", Dokumentation von Zustand und Entwicklung der wichtigsten Seen Deutschlands (in German), Berlin: Umweltbundesamt, p. 11