Pfaffenbach (Bühler)

from Wikipedia, the free encyclopedia
Pfaffenbach
Data
Water code DE : 23866338
location Swabian-Franconian forest mountains

Baden-Württemberg

River system Rhine
Drain over Bühler  → Kocher  → Neckar  → Rhine  → North Sea
source when Benzenhof at the beginning of its forest blade
49 ° 0 '25 "  N , 9 ° 56' 30"  O
Source height approx.  480  m above sea level NHN
muzzle In Bühlerzell next to the river bridge, vertically from the right and east-northeast into the upper Bühler coordinates: 49 ° 0 '11 "  N , 9 ° 55' 0"  E 49 ° 0 '11 "  N , 9 ° 55' 0"  E
Mouth height below  380  m above sea level NHN
Height difference approx. 100 m
Bottom slope approx. 50 ‰
length 2 km
Catchment area approx. 80 ha
Outflow
A Eo : 80 ha
at the mouth
MQ
Mq
9 l / s
11.3 l / (s km²)

The Pfaffenbach is a brook in the area of ​​the municipality of Bühlerzell in the district of Schwäbisch Hall in north-eastern Baden-Württemberg , which flows into the upper Bühler from the right after a 2 km long, somewhat west-southwest run in the eponymous village of the municipality .

geography

course

The Pfaffenbach arises close to the individual estate Benzenhof of the municipality at an altitude of about 480  m above sea level. NHN . It runs from start to finish approximately to the west-southwest and after just a few meters enters the forest that fills the loamy blade into which it digs itself between the Pfaffenberg on the left and another spur of the Ellwang Mountains on the right side of the run. After almost half of its run, the corridor initially only opens on the right lower slope. Now the stream, accompanied by a tree gallery, runs through a meadow corridor to the sports facilities on the northeastern edge of Bühlerzell. Up to here a very naturally flowing stream with a half-meter to meter-wide bed and small changes in direction, it now runs through a small pond in a small, fenced-in recreational property and then in a wide ditch adjacent to the embankments for the playing fields and the parking lot.

Below the parking lot for the sports fields, its floodplain now merges to the right with almost no profile into that of the neighboring Dietzenbach , which here flows roughly in the same direction less than a hundred meters away. From a depression next to the flat, ordinary bed, an underground pipe about one meter in diameter branches off to the right to the Dietzenbach, which keeps most of the inflow away from the village center when the water flow is stronger. Fifty meters further on, the Pfaffenbach itself disappears in a hollow at the beginning of the development; the first plot of land is additionally protected against flooding on the mountain side with a flat earth wall about half a meter high.

In the northern part of the village, the Verdolung quickly reaches the Kottplayer Strasse , runs under it to the south to the town's central Fischerplatz and then on next to or under the Geifertshofer Strasse to the river bridge of the village, where the Pfaffenbach then rises to just under 380  m above sea level. NHN flows into the upper Bühler from the right .

The mouth of the 2.0 km long stream is about 100 meters below its source, the mean bed slope is therefore around 50 ‰. Apart from short or only inconsistent water-bearing rivulets in its blade and a drainage ditch along the sports facility parking lot in the depression of the transition to the Dietzenbach, it has no significant tributaries.

Catchment area

The Pfaffenbach drains around 0.8 km² of the natural area Ellwanger Berge, which extends from the east to the Bühlerlauf, and is part of the Swabian-Franconian Forest Mountains . Adjacent catchment areas are in the north-west and north that of the Dietzenbach , in the north-east that of the Sperberklingenbach , which, like this one, flows over the Avenbach much further down into the Bühler. On the southeast side, the more important Gruppenbach flows to the Bühler far above, behind the left watershed on the ridge of the Pfaffenberg then usually runs a little further than the Dietzenbach on the other side of the Schäfbach to its Bühler estuary, also in Bühlerzell.

The highest point of the catchment area is about 496  m above sea level. NHN at its northeastern tip, where the K 2627 enters the forest bar above the Benzenhof from the clearing island on the other side around Kammerstatt.

Geologically, in the catchment area, the Mittelkeuper layers from the Stubensandstein ( Löwenstein Formation ) down to the Gipskeuper ( Grabfeld Formation ) occur. The stream itself rises in the transition area from the Upper Bunter Marl ( Mainhardt Formation ) to the silica sandstone below it ( Hassberge Formation ), at the transition to the Lower Bunter Marl ( Steigerwald Formation ) in its forest gorge, limestone sinter has been deposited. 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 valley is still pronounced, where the layers below begin, the valley widens to the common floodplain with the Dietzenbach. The stream flows into the Gipskeuper, the Buhler floodplain sediment band. Soon after the move to Gipskeuper, a flood sediment hose accompanies your own run. The geological map shows an alluvial fan a little to the north of the current estuary, which Pfaffenbach and Dietzenbach should have built up together earlier. In nature, however, this bulge can hardly be seen.

In a little less than half of the catchment area, there is forest, namely in the extreme east-northeast tip, but especially in the upper reaches on both valley slopes, and only partially on the middle. On the open plateau around the Benzenhof, fields occupy the open field, while on the lower reaches, in addition to the considerable settlement area, the agricultural field consists almost entirely of meadows. The entire catchment area is in the suburb of the main town of Bühlerzell , the only settlement in it apart from Bühlerzell itself is the individual property Benzenhof at the origin.

See also

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 Height according to the contour line image on the background layer topographic map .
  2. Length according to the waterway network layer ( AWGN ) .
  3. ↑ 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