Dietzenbach (Bühler)

from Wikipedia, the free encyclopedia
Dietzenbach
Data
Water code DE : 238663392
location Swabian-Franconian forest mountains

Baden-Württemberg

River system Rhine
Drain over Bühler  → Kocher  → Neckar  → Rhine  → North Sea
origin inconsistent origin at Bühlerzell- Eichberg
49 ° 0 ′ 31 ″  N , 9 ° 55 ′ 59 ″  E
constant spring in the valley forest near the former Reiterkäppele
49 ° 0 ′ 30 ″  N , 9 ° 55 ′ 45 ″  E
Source height below  450  m above sea level NHN 
Q. at the Reiterkäppele
approx.  475  m above sea level NHN
origin near Eichberg
muzzle In their already settlement-free floodplain between the northernmost houses of Bühlerzell from the right and east-northeast into the upper Bühler coordinates: 49 ° 0 ′ 19 ″  N , 9 ° 54 ′ 58 ″  E 49 ° 0 ′ 19 ″  N , 9 ° 54 ′ 58 ″  O
Mouth height below  379  m above sea level NHN
Height difference 71 m
Bottom slope 62 ‰
length approx. 1.1 km 
from Q. in the valley forest
approx. 1.5 km
temporary Q. at the hamlet of Eichberg
Catchment area approx. 50 ha
Outflow
A Eo : 50 ha
at the mouth
MQ
Mq
6 l / s
12 l / (s km²)

The Dietzenbach is a stream near the municipal boundary between Bühlerzell and Bühlertann in the Schwäbisch Hall district in northeastern Baden-Württemberg , which flows into the upper Bühler from the right after a one to one and a half kilometer run to the west-southwest near Bühlerzell .

geography

course

The Dietzenbach arises at different heights depending on the weather. The farthest point of the inconsistent course lies in an herbaceous hollow in the Bühlerzell hamlet of Eichberg at around 475  m above sea level. NHN . From here to the mouth of the creek has been running in West southwest to south-west direction, after a few steps in the forest, in which he, his sound digs like valley between the vast and wooded ridge Eichberg right and the shorter left spur of the Ellwanger Berge to Buhler out , which starts at the level of the hamlet of Eichberg on the plateau.

On its 300 to 400 meter long forest run, it passes a spring at a point called Reiterkäppele at around 450  m above sea level. NHN on the right of the course, from whose inlet to the water flow is quite constant. In the following open meadow corridor he is accompanied with a break by a tree gallery. At the parking lot for the sports area on the northeastern edge of Bühlerzell, he crosses under the Steigenstrasse from Eichberg down to Bühlerzell, which has never been very far from the slope on the left. Here the bottom of the valley has already turned into a flat floodplain on the south edge of which the neighboring Pfaffenbach water , now less than a hundred meters away, flows. On the next 150 meters to the outskirts of Bühlerzell, still in the shade of the tree and now directly next to the little road, it absorbs a large part of its flow from a piped overpass when the water flow from the neighboring stream is strong.

Shortly afterwards he disappears in an underground guide at the first shed in the village and immediately reaches Kottplayer Straße (L 1072), on or next to whose route he now runs almost 100 meters in the direction of the northern end of the village. Then it reappears opposite the junction of the path to the old quarry on the river side of the road between the last houses of Bühlerzell and flows a little less than 200 meters westwards, where the then at about 379  m above sea level. NHN flows into the upper Bühler from the right in the already uninhabited floodplain of the river .

After a 1.1 km long run, the Dietzenbach flows with a mean bed gradient of about 64 ‰ from the source in the valley forest, about 71 meters below it. From the origin near the hamlet of Eichberg, it runs through a total length of about 1.4 km, a difference of 96 meters in altitude, which corresponds to an average gradient of about 67 ‰.

Catchment area

The Dietzenbach drains about 0.5 km of the natural area Ellwanger Berge, a sub-area of ​​the Swabian-Franconian Forest Mountains, which extends from the east to the Bühlerlauf . Adjacent catchment areas are in the north-west a nameless and unstable forest brook that drains the Eichberg westwards to the Bühler, in the north-east that of the Sperberklingenbach , which flows like this but over the Avenbach much further down into the Bühler. On the southeast side, the somewhat larger Pfaffenbach flows behind the plateau spur near the hamlet of Eichberg to the Bühler in the center of the village of Bühlerzell. The highest point of the catchment area is just over 490  m above sea level. NHN near the forest path that runs on the Eichberg in the forest towards Sefflesrain .

Geologically, in the catchment area, the Mittelkeuper layers from the Stubensandstein ( Löwenstein Formation ) down to the Gipskeuper ( Grabfeld Formation ) occur. The brook itself arises, if in the hamlet of Eichberg, in the transition area from the Upper Bunten Mergeln ( Mainhardt Formation ) to the silica sandstone below it ( Hassberge Formation ). On or shortly after the change to the Untere Bunter Marl ( Steigerwald Formation ), the more constant spring rises to the right of the river near Reiterkäppele . The reed sandstone ( Stuttgart formation ) starts where the stream leaves the forest. In the area of ​​the following layers of estheria of the Gipskeuper, the Talerbe is still pronounced, where the layers below begin, the valley widens to the left to the common floodplain with the Dietzenbach. The stream also flows into the Gipskeuper, in the Buhler's floodplain sediment band. The geological map shows an alluvial fan south of the current estuary, which Pfaffenbach and Dietzenbach should have built up together earlier. In nature, however, this bulge can hardly be seen.

On the right side of the slope, above the section on the lower Eichberg, there is an abandoned quarry in the reed sandstone. This one is in flood facies designed the digestion is a several meters high degradation wall made quite compact sandstone.

There is forest on a little less more than half of the catchment area, especially on the upper and middle Eichberg slope on the right. A small part of the cleared island around the hamlet of Eichberg lies in the catchment area, with meadows and arable land. Below the section through the forest there are almost only meadows in the open corridor of the slopes and floodplains, on a small part there are houses from the Bühlerzell settlement area, which runs northwards along Kottplayer Straße . In addition to this village, the only other settlement area in the catchment area is the small, associated hamlet of Eichberg . In addition to Bühlerzell, the municipality of Bühlertann in the north even has an almost half share of the area, the municipality boundary follows the stream in the forest section and otherwise the tree boundary on the Eichberg slope.

Individual evidence

LUBW

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

  1. a b c d Height according to the contour line image on the background layer topographic map .
  2. Length according to the waterway network layer (AWGN) .
  3. Length according to the water network layer ( AWGN ) from the forest source, further unstable upper reaches up to the origin near Eichberg measured on the background layer topographic map .
  4. ↑ Catchment area measured on the background layer topographic map .

Other evidence

  1. Modeled values ​​according to the discharge BW water node MQ / MNQ
  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 ). The geological map listed under → Literature offers a similar picture  .

literature

  • Topographic map 1: 25,000 Baden-Württemberg, as single sheet No. 6925 Obersontheim
  • Geological map of Baden-Württemberg 1: 25,000, published by the State Geological Office 1982, sheet no. 6925 Obersontheim with explanatory booklet.

Web links