Swallow

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Swallow
The swale in Neumünster-Brachenfeld

The swale in Neumünster-Brachenfeld

Data
Water code DE : 59762
location Schleswig-Holstein , Germany
River system Elbe
Drain over Stör  → Elbe  → North Sea
source At Gönnebek
54 ° 3 ′ 0 ″  N , 10 ° 11 ′ 0 ″  E
Source height 36  m
muzzle In Neumünster in the Stör coordinates: 54 ° 3 ′ 10 ″  N , 9 ° 56 ′ 35 ″  E 54 ° 3 ′ 10 ″  N , 9 ° 56 ′ 35 ″  E
Mouth height 25  m
Height difference 11 m
Bottom slope about 0.69 ‰
length about 16 km
Catchment area about 73 km²
Discharge at the Brachenfeld
A Eo gauge : 73 km²
Location: 6.9 km above the mouth 		NNQ (August 12, 1976)
MNQ 1972–2014
MQ 1972–2014
Mq 1972–2014
 MHQ 1972–2014
HHQ (December 24, 2014) 		10 l / s
113 l / s
579 l / s
7.9 l / (s km²)
 3.94 m³ / s
6.62 m³ / s
Right tributaries Dosenbek
Reservoirs flowed through Pond in Neumünster
The Schwale's river system (schematic)

The Schwale is a western (right) tributary of the Stör in Schleswig-Holstein .

The upper course

The swale is 16 km long and has its source near Gönnebek in the Segeberg district . At the edge of the fallow fields, already in the urban area of Neumünster , the approximately equal sized Dosenbek , which is fed by the Dosenmoor , flows into the Schwale. The largely untouched Schwaletal in Neumünster-Brachenfeld in the east of the city is one of the most valuable nature reserves in Neumünster. 13 different bat species and 69 different breeding birds have their home here. After heavy rainfall, the water builds up in the Schwaletal because it cannot flow through the city so quickly towards Stör. The valley acts as a natural rainwater retention basin and protects other areas of the city from flooding.

Downtown and pond

After the Schwale has crossed under the inner city ring, it flows through the city of Neumünster, in the city center of which it is dammed into a pond. The pond was artificially created in the Middle Ages by the monks of the Augustinian Canons, and it is first mentioned in documents in 1502. The pent-up power of the swell was used to operate a mill. The mill bridge or mill square is still a reminder of this use today. To further relieve the pond, a bypass river, the Schleusau , was artificially created. The Schleusau flows back into the Schwale in a large curve, was partially piped, but has been exposed again in recent years and is part of the town's local recreation area. The soft water of the swallow was an important resource for the upswing of the textile and leather industry in Neumünster in the 19th and first half of the 20th century. Cloth makers, cloth factories, dye works and tanneries settled on the banks. During this time, many pollutants such as paint residues, chemicals and residues of leather processing and the heavy metals dissolved in them got into the water. For centuries, the stain councils and city councilors had to combat the problem of odor nuisance. The first pond cleaning is documented as early as 1584. Sustainable maintenance of the pond is only possible after the decline of the textile and leather industry. The regular dredging work today mainly promotes sand deposits. After the riverside areas were transferred to the city, the surrounding green spaces were inaugurated in 1964. The zone between large spots and small spots has thus become a local recreation area.

The lower course

Further downstream, the Schwale flows south of the Wittorf Castle into the Stör and thus over the Elbe in turn into the North Sea .

fishes

The name Schwale could come from the fish called Schwal or Schwale . Due to the cleaning in the last few decades, the swallow is populated again by fish. It is hoped that in the sturgeon exposed sturgeon also migrate to spawn in the Schwale. The salmon staircase should be a help.

  • Schwaletal am Brachenfelder wood after heavy rain

  • At the pond

  • Autumn at the mill pond

  • Schleusau "source"

  • Salmon staircase in front of the Schleusau "source"

  • Muzzle of the swallow into the sturgeon

Individual evidence

  1. ^ German Hydrological Yearbook Elbe Region, Part III 2014. (PDF) ISSN 0949-3654. Free and Hanseatic City of Hamburg, Hamburg Port Authority, p. 161 , accessed on October 4, 2017 (German, at: dgj.de).
  2. ^ Marianne Dwars et al. (Editor): Neumünster-Lexikon. Wachholtz-Verlag, Neumünster 2003; ISBN 3-529-01711-6
  3. ^ City of Neumünster: The pond
  4. ^ HA Becker: The sturgeon - The sturgeon: Amusing and worth knowing about the river and the Fisch Verlag Books on Demand, 2002, ISBN 9783831138333

Web links

Commons : Schwale  - collection of images, videos and audio files