Griesheim break

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Griesheim break

IUCN Category IV - Habitat / Species Management Area

Griesheim break

Griesheim break

location Griesheim , Darmstadt-Dieburg district , Hesse , Germany
surface approx. 35 ha
Identifier 1432027
WDPA ID 318462
Natura 2000 ID DE6217403
Geographical location 49 ° 52 '  N , 8 ° 32'  E Coordinates: 49 ° 51 '36 "  N , 8 ° 31' 39"  E
Griesheimer Bruch (Hesse)
Griesheim break
Setup date February 7, 2000

The Griesheim break is a nature reserve (NSG) in the district Griesheim in Darmstadt-Dieburg in Southern Hesse . It was expelled by ordinance of February 7, 2000.

Griesheimer Bruch nature reserve

The Griesheimer Bruch (historically also: The Griesheimer Bruch ) is a forest and meadow area in the natural area of ​​the Hessian Rhine Plain . The protected area is located in the west of the city of Griesheim and covers an area of ​​around 35 hectares. Since 2007 the nature reserve has also been part of the EU bird sanctuary Hessische Altneckarschlingen (6217-403). There are several field and forest paths on the area . The nature reserve Torfkaute - Bannholz von Dornheim-Wolfskehlen borders in the west .

Protection purpose

By placing it under protection, the areas of moist grassland , fallow land and groups of trees that have remained as remnants of a low moorland are to be preserved. These wet biotopes are to be secured as habitats for rare and endangered animal and plant species. To this end, the groundwater levels are to be gradually raised and the grassland is to be used extensively.

Geomorphology and ecology

The Griesheimer Bruch is a species-rich, submontane boron grass pasture on silicate soil. In addition, there are marsh grass meadows on calcareous, peaty and clayey-silty soil ( Molinion caeruleae ). Probably the Griesheim break was originally an almost purely of black alder - carr and gray willow -Gebüsch constructed deciduous forest ( Alnetea glutinosae ). The Griesheimer Bruch is located on a ground with high, slightly fluctuating, but slowly moving, base-rich groundwater . The bases that are brought in neutralize the acids produced by anaerobic soil organisms and thus enable the organic plant remains to be largely decomposed by bacteria and earthworms . The several centimeters thick quarry forest peat ( quarry forest peat ) made of wood and remains of cones hardly shows any plant structures. In spring, before the start of the growing season, the Griesheimer Bruch can be flooded and waterlogged for a longer period of time. The subsequent, at least superficial desiccation of the soil is an essential prerequisite for the settlement of the shallow-rooted black alder in terms of nitrogen mineralization and oxygen supply. In the quarry forest itself, the high groundwater level allows the undergrowth of swamp plants to appear in the wet meadows and reeds instead of typical deciduous forest types. From today's point of view, the trees are worthless in terms of forestry. The Griesheimer Bruch is partially drained; whereby part of the humid biotope , which is valuable for nature conservation , is lost.

The Griesheimer Bruch today

Way in the Griesheimer Bruch. Taken in the evening just before sunset. 360 degree panorama from 10 images.

The Griesheimer Bruch is no longer a pure black alder break forest. Much of the area is similar to a partially drained mixed forest with forest meadows . In the Griesheimer Bruch there are numerous wet meadows and ditches that form a habitat for native amphibians such as frogs , toads and newts . An amphibian basin created in 2015 is intended to increase biodiversity . The Griesheimer Bruch could also become permanent home for some rarer species (e.g. common frog, common spadefoot and natterjack toad) that appear in some places on the area but do not yet form permanent populations. Shallow, open waters must be available for permanent settlement of the amphibians; which warm up quickly in spring. The Griesheimer Bruch nature reserve also offers nesting opportunities for the storks that breed here every year.

Waters

The Griesheimer Bruch is drained through numerous ditches. There are also several fish ponds and an amphibian basin on the area.

fauna and Flora

Typical animals in the Griesheimer Bruch are common frogs , common garlic toads , natterjack toads and white storks . Typical plants in the Griesheimer Bruch are bristle grass , whistle grass , gray willow and black alder .

etymology

Bruch: At OHG and MHG.. Bruoch st.NM "peaty soil, swamp". The names are reminiscent of damp meadow grounds.

Historical buildings

The listed Hohe Brücke is located on the north-western edge of the Griesheimer Bruch .


literature

Individual evidence

  1. a b c Ordinance on the “Griesheimer Bruch” nature reserve of February 7, 2000. (PDF) State Gazette for the State of Hesse 9/2000, p. 767, no. 216, accessed on July 16, 2020 .
  2. a b map of the nature reserve. natureg.hessen.de, accessed on July 16, 2020 .
  3. Josef Kreuziger & Matthias Werner: SPA monitoring report for the EU bird sanctuary 6217-403 "Hessian Altneckarschlingen" (Darmstadt district). Expert opinion of the state bird sanctuary for Hesse, Rhineland-Palatinate and Saarland. Zwingenberg, 127 p. 2017. PDF
  4. Press release: Griesheim Environment Agency, Griesheim 2015
  5. Hans Ramge: Südhessisches Flurnamenbuch , Hessische Historische Kommission Darmstadt, 2002, ISBN 3-88443-045-9 , p. 260.

Web links

Commons : Griesheimer Bruch nature reserve  - collection of images, videos and audio files