Emersbach (Aalenbach)

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Emersbach
Data
Water code DE : 23866634
location Hohenloher and Haller level

Baden-Württemberg

River system Rhine
Drain over Aalenbach  → Bühler  → Kocher  → Neckar  → Rhine  → North Sea
source approx. 1 km northeast of Großaltdorf on the Crailsheim – Heilbronn railway line
49 ° 8 ′ 1 ″  N , 9 ° 54 ′ 51 ″  E
Source height approx.  417  m above sea level NHN
muzzle halfway between Vellberg- Lorenzenzimmern and Großaltdorf from the right and north in the Aalenbach Coordinates: 49 ° 7 '45 "  N , 9 ° 55' 2"  E 49 ° 7 '45 "  N , 9 ° 55' 2"  E
Mouth height 399  m above sea level NHN
Height difference approx. 18 m
Bottom slope approx. 30 ‰
length 594 m
Catchment area approx. 80 ha

The Emersbach is a stream less than a kilometer long in the Großaltdorf district of the small town of Vellberg in the Schwäbisch Hall district in north-eastern Baden-Württemberg . After a long looping south-east, it flows into the Aalenbach from the right between the hamlet of Lorenzenzimmern and the village of Großaltdorf von Vellberg .

geography

course

The Emersbach arises about one kilometer northeast of the outskirts of Großaltdorf and about 1.3 km west-northwest of the center of Lorenzenzimmern on the Crailsheim – Heilbronn railway at about 417  m above sea level. NHN in a small field hedge. Accompanied from beginning to end by a farm road, the ditch-like brook flows without trees or bushes on the bank between fields on the left and a moderately wide meadow on the right in its natural hollow in a somewhat changeable south-easterly course. At 399  m above sea level NHN flows into the Aalenbach from the right .

The Emersbach flows after a 0.6 km long run with a mean bottom gradient of approx. 30 ‰, about 18 meters below its origin.

A brook from the former Kirchbühl gypsum quarry, which is about as long as the entire Emersbach, flows into the Emersbach from the northeast, also running in a ditch.

A measuring table sheet from the first half of the 20th century shows an additional inconsistent upper course of the Emersbach on the north side of the railway line of about 0.5 km in length, which is up to 423  m above sea level. NN in the win Morschen begins.

Catchment area

The catchment area of ​​the Emersbach is around 0.8 km² and, in terms of natural space , is located in the lower area of ​​the Haller level of the Hohenloher and Haller level . It is a high altitude field on the northern watershed at Gewann up to about 438  m above sea level. NHN high, largely occupied by large, land-cleared fields, which, with the exception of a small portion there in the north, which belongs to the Unteraspach district of Ilshofen , lies entirely within the boundaries of the Großaltdorf district of Vellberg . Before the Kirchbühl hill was removed in the course of the local gypsum mining, the 449.1  m above sea level was located on its summit about north of the origin of the tapering trench . NN highest point of the completely unpopulated catchment area.

This is surrounded in turn by the catchment areas of the following neighboring waters:

  • Beyond the highest watershed in the north, the Hohteichbach drains to the other side, a tributary of the Schmerach , which flows into the Bühler after the Aalenbach ;
  • in the east a smaller ditch also runs from the right and at Lorenzenzimmern to the Aalenbach
  • in the southwest and west is the catchment area of ​​the next Aalenbach tributary, Razenbach .

Tributaries

List of tributaries from the source to the mouth. Length of water, catchment area and altitude according to the corresponding layers on the LUBW online map. Other sources for the information are noted.

  • (Graben vom Kirchbühl ), from the left and northeast to about 406  m above sea level. NHN , approx. 0.6 km and under 0.3 km². Arises at about 420  m above sea level. NHN on the field path to Gewann Steinrecht opposite the nature reserve Gipsbruch Kirchbühl.

geology

At the western edge of the catchment area, almost only to the north of the railway line, there is a strip of loess sediment from Quaternary sedimentation above the gypsum keuper ( grave field formation ) which otherwise occupies the largest, upper part of the catchment area . In the valley basins of the Emersbach from a little south of the railway line and its tributary from around the middle reaches the even deeper Lettenkeuper ( Erfurt formation ). The strips of alluvial land that accompany the two trenches on these sections are only narrow, as is the strip of floodplain clay around the Aalenbach at the mouth of the Emersbach.

The lost by the reduction in the plaster breaking Kirchbühl on the northern watershed about the origin of the feed collection Kirchbühl was one of the landscape typical rounded hill with a basic plaster lens in the underground, on the reduction went.

Nature and protected areas

The Emersbach is a ditch that is completely free of trees and bushes except at the origin in one of the field hedges standing next to the railway line and at the mouth where it reaches the accompanying tree gallery of the Aalenbach. Its tributary runs along the middle course along the edge of a small field hedge, but is otherwise just as bare.

The Gipsbruch Kirchbühl nature reserve, which encompasses the former excavation pit and areas on its edge, is a secondary biotope with quarry ponds, piles of stones and earth, shrubbery and areas of poor grassland. After the dismantling stopped, amphibians, bats and birds settled in this small area mosaic, and the reserve was set up to preserve them.

Individual evidence

LUBW

Official online waterway map with a suitable section and the layers used here: Course and catchment area of ​​the Emersbach
General introduction without default settings and layers: State Institute for the Environment Baden-Württemberg (LUBW) ( notes )

  1. ↑ a b c Height according to the contour line image on the background layer topographic map .
  2. ↑ Height according to the gray lettering on the background layer topographic map .
  3. ↑ Length according to the waterway network layer ( AWGN ) .
  4. ↑ a b Catchment area measured on the background layer topographic map .
  5. ↑ a b Length measured on the background layer topographic map .
  6. ↑ Protected areas according to the relevant layers, nature partly according to the biotope layer .

Other evidence

  1. ↑ a b Height according to the measuring table sheet measuring table sheet 6825 Ilshofen from 1937 in the Deutsche Fotothek
  2. ↑ Wolf-Dieter Sick : Geographical land survey: The natural space units on sheet 162 Rothenburg o. D. Deaf. Federal Institute for Regional Studies, Bad Godesberg 1962. →  Online map (PDF; 4.7 MB)
  3. ↑ Geology according to the layers for Geological Map 1: 50,000 on: Map server of the State Office for Geology, Raw Materials and Mining (LGRB) ( notes )

literature

  • Topographic map 1: 25,000 Baden-Württemberg, as single sheet No. 6825 Ilshofen

Web links