Hellebach
| Hellebach | ||
 Representative of the mayfly species Paraleptophlebia detected in the Hellebach (sample photo ) |
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| Data | ||
| Water code | DE : 482486 | |
| location | Lower Saxony , Germany | |
| River system | Weser | |
| Drain over | Schiffgraben-West → Ilse → Oker → Aller → Weser → North Sea | |
| source | East of Achim 52 ° 4 ′ 1 ″ N , 10 ° 38 ′ 40 ″ E |
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| Source height | 125 m above sea level NHN | |
| muzzle | South of Achim Coordinates: 52 ° 2 '55 " N , 10 ° 35' 58" E 52 ° 2 '55 " N , 10 ° 35' 58" E |
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| Mouth height | 87 m above sea level NHN | |
| Height difference | 38 m | |
| Bottom slope | 8.8 ‰ | |
| length | 4.3 km | |
| Catchment area | 5.6 km² | |
| Communities | Exchange rate | |
The Hellebach is a 4 km long brook in the Wolfenbüttel district , which rises northeast of Achim and flows south of the village into the Schiffgraben-West . It is one of the rare find places of a genus of mayflies .
Geography and mayflies
The Hellebach rises in the Feldmark about two kilometers north-east of Achim as a mostly deeply incised, rather straightforward Feldbach, which often falls dry in summer. In the local area of Achim it takes on a stream also coming from the east from the left and has a relatively natural course in sections. It flows further south below Achim and joins the Schiffgraben-West near the Tempelhof farm.
A lack of bank planting and a dead straight course give the water a bad structural grade . Regular drying out allows only a limited number of species to survive, but this includes the extremely rare genus Paraleptophlebia werneri . As of 2002, this had only been proven here and at another point in the Outer catchment area, which is unique in Germany.
Elbe-Weser watershed
The Hellebach belongs to the catchment area of the Weser . A little further east of Achim, the brooks flow into the east-flowing part of the New Graben in the Großer Bruch , which in turn drains via Bode and Saale to the Elbe .
Web links
- Map of the Hellebach at openstreetmap.org
- Publications of the state of Lower Saxony on the water quality of the Oker on www.wasserblick.net
- Downloads on water quality at nlwkn.niedersachsen.de
Individual evidence
- ↑ a b c State Office for Geoinformation and Land Surveying Lower Saxony: Top 50 - Topographic Map 1: 50,000 Lower Saxony / Bremen , status 2000.
- ↑ NLWKN : Area directory for the Lower Saxony Hydrographic Map , as of 2010, p. 56. Retrieved from Umwelt.niedersachsen.de on August 19, 2013
- ↑ NLWKN : Water quality report Oker 2002 , Braunschweig October 2002, p. 49 ff.