Glasgraben (Rotwassergraben)

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Glass trench
Data
location Vienna , Austria
River system Danube
Drain over Rotwassergraben  → Vienna River  → Danube  → Black Sea
source in the Lainzer Tiergarten
48 ° 10 ′ 30 ″  N , 16 ° 11 ′ 27 ″  E
muzzle in the Lainzer Tiergarten in the Rotwassergraben Coordinates: 48 ° 11 ′ 28 ″  N , 16 ° 12 ′ 42 ″  E 48 ° 11 ′ 28 ″  N , 16 ° 12 ′ 42 ″  E

length 3.2 km
Catchment area 1.9 km²

The Glasgraben is a brook in the 13th district of Hietzing in Vienna . It is a feeder of the Rotwassergraben .

course

The glass trench is 3180 m long with a height difference of 180 m. Its catchment area is 1.9 km². The stream runs through the west of the Lainzer Tiergarten , where it rises on the Brandberg . In its lower reaches it flows through a Mulde valley . It flows into the Rotwassergraben at the foot of the Johannser Kogel on the left.

There is no risk of flooding when digging glass. In the event of a flood of the century , neither the infrastructure nor the resident population are affected.

history

The stones of the wall of the Lainzer Tiergarten, built by Philipp Schlucker from 1781 to 1787, came from the glass trench, among other things.

ecology

The brook serves as spawning water for fire salamanders ( Salamandra salamandra ), yellow-bellied toads ( Bombina variegata ), common frogs ( Rana temporaria ) and agile frogs ( Rana dalmatina ). The bird species seen here include the gray flycatcher ( Muscicapa striata ), the collar snapper ( Ficedula albicollis ), the oriole ( Oriolus oriolus ), the swamp tit ( Poecile palustris ), the wood warbler ( Phylloscopus sibilatrix ) and the wasp buzzard ( Pernis apivorus ). At the Glasgraben grow black alder - alluvial forests , where the strictly protected black germer ( Veratrum nigrum ) can be found, and small-scale old field maple - hornbeam forests.

See also

Individual evidence

  1. ↑ a b c brooks by district. Economy, Labor and Statistics (Municipal Department 23), Municipal Authority of the City of Vienna, accessed on January 3, 2020 .
  2. ↑ Julia Tanzer: Historical morphological changes in the southern Vienna Danube feeder 1755-2010 . Master thesis. University of Natural Resources and Life Sciences, Vienna 2016, p. 85 ( boku.ac.at [PDF; accessed January 3, 2020]).
  3. ↑ MA 45, review of the discharge capacity of various torrents in connection with flood protection. Activity report 2014. (PDF) City Audit Office Vienna, April 2014, p. 7 , accessed on January 3, 2020 .
  4. ↑ The Lainzer Tiergarten. In: 1133.at. August 2011, accessed January 3, 2020 .
  5. ↑ Heinz Grillitsch, Silke Schweiger: Final report on the survey of amphibian spawning waters in Vienna “Spawning waters mapping 2015 and 2016”. (PDF) Vienna Environmental Protection Department (Municipal Department 22), November 2016, pp. 32, 72, 81 and 87 , accessed on January 3, 2020 .
  6. ↑ Johanna Scheiblhofer, Wolfgang Schranz: Diverse nature in Hietzing. (PDF) Biosphärenpark Wienerwald Management GmbH, December 2019, pp. 148–150, 153–154 , accessed on January 3, 2020 .
  7. ↑ Johanna Scheiblhofer, Wolfgang Schranz: Diverse nature in Hietzing. (PDF) Biosphärenpark Wienerwald Management GmbH, December 2019, pp. 96 and 131 , accessed on January 3, 2020 .