Buchbach (Speltach)

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Buchbach
Data
Water code DE : 238816
location Swabian-Franconian forest mountains

Baden-Württemberg

River system Rhine
Drain over Speltach  → Jagst  → Neckar  → Rhine  → North Sea
source approx. 0.7 km northwest of Frankenhardt- Steinehaig on the northeast slope of the Hackenberg
49 ° 5 ′ 51 ″  N , 9 ° 55 ′ 36 ″  E
Source height approx.  473  m above sea level NHN
confluence in an easterly direction with the left Lanzenbach to the Speltach on the southern edge of Frankenhardt- Oberspeltach Coordinates: 49 ° 6 '10 "  N , 9 ° 58' 46"  E 49 ° 6 '10 "  N , 9 ° 58' 46"  E
Mouth height approx.  422  m above sea level NHN
Height difference approx. 51 m
Bottom slope approx. 12 ‰
length 4.3 km
Catchment area 6.658 km²

The Buchbach is a little more than four kilometers long, fine material rich, carbonate low mountain range in the district of Schwäbisch Hall in north-eastern Baden-Württemberg . It flows a total of approximately eastwards and almost entirely in the area of ​​the municipality of Frankenhardt and unites on the southern edge of the village of Oberspeltach of the municipality with its left, approximately equal upper course Lanzenbach to Speltach .

Surname

On the official waterway map, the left of the two upper reaches of the two upper reaches, which begins on the Kohlsteige, is calculated as the creek on the lower reaches of the Buchbach . However, the official topographic map labeled in contradiction to the catchment richer right upper reaches, on the waters and map here as a soul Bach called - the name probably comes from the dialectal diminutive soul of the word lake  - as Buchenbach . Since no remains of a lake dam can be seen anywhere on the Seelesbach-Lauf or a relevant name is given, but the Buchbachlauf crosses a Gewann Schwarzsee and also passes two small ponds near the mouth, the names could also have been mixed up. We are sticking with the naming of the official waterway map.

geography

course

The Buchbach arises on the wooded northeast slope of the Hackenberg called Kohlsteige in the lower slope area at about 473  m above sea level. NHN . It runs from its source about 0.7 km northwest of the Frankenhardt hamlet of Steinehaig from about eastwards and is initially a border stream between the town of Vellberg in the south and Frankenhardt in the north. After less than 150 meters, it passes under the K 2665 district road from Vellberg- Kleinaltdorf to Steinehaig in a hollow that is only a few meters deep . There it changes over entirely to the Frankenhardt area, where it now remains up to the mouth. It runs a little further through the Karrenhalde forest and then north of Steinehaig for almost half a kilometer through the Schwarzsee Flurgewann . before it separates the Klinge tub in the south and Greut and See in the north in a final ledge through the forest . From now on, permanently in the open corridor, it runs in a shallow meadow hollow up to 100 meters in front of the few houses at the lower foot of the slope of Waldbuch and kinks in the area of ​​two small ponds on the right bank to the northeast.

Between the houses mentioned and the Bonolzhof in the north, which stands on a flat bump in the terrain, at the edge of the road that connects the two, the Seelesbach, a little over two kilometers long, flows from the southeast towards him. Less than 400 meters further down the valley in its now continuously widening meadow hollow, it is reinforced by the Seebach , which is also around two kilometers long and arises in the west-northwest in the forest. Afterwards, the Buchbach swings in a few, flat curves on its last almost two kilometers eastward run through a wide grassland floodplain. 400 meters before its end, opposite the Frankenhardt village of Overspeltach, which already occupies the left bank, the Birkbach, which is just over a kilometer long, joins it from the southwest . Along the southern edge of the village, it crosses the K 2665 Waldbuch – Oberspeltach and joins immediately afterwards at around 422  m above sea level. NHN with the left upper course Lanzenbach to Speltach coming from the northwest, which reaches the Jagst in a further seven kilometers long east course .

The approximately 4.3 km long Buchbach run flows about 51 meters below its source and has an average bed gradient of about 12 ‰.

Catchment area

The Buchbach has a catchment area of ​​6.7 km², which in terms of natural space lies entirely in the lower area of ​​the Burgberg Vorhöhen and Speltach Bay of the Swabian-Franconian Forest Mountains . Its highest point is the flat summit of the Hackenberg at 511.2  m above sea level. NHN , to which a western corner of the catchment area runs out less than 400 meters southwest of the source of the stream.

On the left and north side it meets the catchment area of ​​the left Speltach upper reaches Lanzenbach . Behind the right and south-eastern part of the longest part of the next large right tributary Betzenbach leads to the Speltach, the drain on the other side of this. In the far south-west, on the plateau around the Geschäufelte Marsh, the catchment area borders on the short Hahnenbach , which donates its water to the Bühler tributary over the Nesselbach . The prominent and hydrologically most important watershed in the west borders the catchment area of ​​the Bühler receiving water, Kocher , because in the west- south-west a (different!) Lanzenbach also feeds the Bühler, in the west the Echtbach and in the northwest the Steppach its tributary Aalenbach .

On about a third of the catchment area, almost only in the northwest and north, there is forest, which surrounds two somewhat larger meadow clearings. In the open corridor there is mostly grassland in the valleys, and more arable land on the accompanying plateaus.

With the exception of a forest gusset on this side of the Hackenberg slope and part of the forest area in the northwest, both of which are unpopulated and belong to the urban area of Vellberg , the significantly larger part of the catchment area is in the municipality of Frankenhardt . Settlement is limited to the hamlet of Steinehaig , which stands on the western watershed, Waldbuch right above the middle course and a little downhill Bonolzhof on the flat mouth of the Seebach. Also from the village of Oberspeltach , where all of the above-mentioned are located, a small part on the left bank of the Buchbach drains to it. The hamlet of Spaichbühl is located close to the edge of the southeastern scabbard in the Gründelhardt district mark .

Tributaries and lakes

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

Origin of the Buchbach at about 473  m above sea level. NHN approx. 0.7 km west-northwest of Frankenhardt - Steinehag on the northeast slope Kohlsteige of the Hackenberg von Vellberg . The stream initially flows east, for a good hundred meters along the city limits of Vellberg.

  • Schwarzbach , from the right and west-southwest to about 460  m above sea level. NHN north-northeast of Steinehaig in the Schwarzsee bay in the forest, 0.5 km and approx. 0.2 km². Arises at about 467  m above sea level. NHN northwest of Steinehaig.
    • (Inflow), from the right and southwest to about 462  m above sea level. NHN north of Steinehaig, over 0.2 km and approx. 0.1 km². Arises at about 467  m above sea level. NHN at the old Steinehaiger outdoor pool.
  • RiverIcon-SmallLake.svgPassed at about 436  m above sea level. NHN about a hundred meters before the next two small ponds on the right bank.
  • Seelesbach , from the right and southwest to about 434  m above sea level. NHN in front of the bridge on the road from Frankenhardt- Waldbuch to Frankenhardt- Bonolzhof , approx. 2.3 km and approx. 1.6 km². Arises at about 472  m above sea level. NHN a little south of the L 1064 Vellberg-Frankenhardt- Spaichbühl .
    The Buchbach upper course up to this tributary is almost as long, but has a catchment area of ​​just 1.0 km².
    • (Road ditch), from the left and west-southwest to about 439  m above sea level. NHN a little west of a timber company on the southern edge of Waldbuch, 0.8 km and about 0.3 km². Arises at about 55  m above sea level. NHN and follows the entire length of the K 2666 Steinehaig – Waldbuch. Only intermittent flow, pronounced trough only on the second half of the course.
  • Seebach , from the left and finally west to about 431  m above sea level. NHN approx. 0.2 km northeast of Bonolzhof, 2.1 km and approx. 2.3 km². Arises at about 455  m above sea level. NHN in the Burgbergwald approx. 150 meters north of the road to the former military dump in Heiligenholz and initially flows southeast.
    • (Inflow), from the right and west-southwest to about 442.3  m above sea level. NHN on the middle course on the edge of a meadow accompanying the Seebach, approx. 1.1 km and approx. 0.7 km². Arises at about 459  m above sea level. NHN as an often dry ditch in the larger and more southern forest clearing north of the light oaks .
      • RiverIcon-SmallLake.svgFlows through to about 447  m above sea level. NHN a pond dammed behind a forest path dam after strong forest meanders on the middle reaches, over 0.2 ha.
      • (Other upper course), from the left and west to about 445  m above sea level. NHN in the beginning of the Unterlauf-Wiesenaue, up to approx. 0.6 km and approx. 0.3 km². Usually flow only on the lower half of the barrel.
        • RiverIcon-SmallLake.svgSeldom escapes at around 457  m above sea level. NHN two forest ponds surrounded by reed beds on the eastern edge of the smaller forest clearing in the forest , together with a belt of reed beds under 0.5 ha.
    • Birkbach , from the right and southwest to about 423  m above sea level. NHN opposite the settlement around the Ahornweg in Frankenhardt- Oberspeltach , 1.3 km and approx. 0.5 km². Arises at about 448  m above sea level. NHN on Stra0e Waldbuch– Banzenweiler across from an Aussiedlerhof southeast of Waldbuch.

The confluence of the Buchbach from the right and finally west with the Lanzenbach on the left and coming from the northwest to the Speltach, which initially flows east-south-east, at about 422  m above sea level. NHN on the southern edge of Oberspeltach shortly after the bridge on Buchstrasse from Waldbuch. The Buchbach is 4.3 km long and has a 6.7 km² catchment area.

geology

The catchment area of ​​the Buchbach lies entirely in the Keuper . The small high plateau on the Hackenberg a little above the source is covered by the silica sandstone ( Hassberge Formation ), below on the slope are Untere Bunte Marl ( Steigerwald Formation ), in the border area between this and the even deeper reed sandstone ( Stuttgart Formation ) the Buchbach rises. Around where the brook crosses the Steinehaig – Kleinaltdorf road, it changes to the Gipskeuper ( Grabfeld formation ), which is present in most of the catchment area, except only

  • above the upper reaches of the large right tributary Seelesbach in the vicinity of the Hahnenberg , where the same sequence of layers is present on the slope downwards;
  • left of the Buchbach upper course on the spur light oaks and on the Höcker Himmelreich right of the Seelesbach upper course near Spaichbühl, on which reed sandstone lies;
  • on sections of the upper runs that are surrounded by areas of redistributed and weathered rock and
  • in the ribbons of floodplain clay that accompany the three big runs from the middle run at the latest.

In some places the Gipskeuper shows a clear step formed by the thin, but dolomitized and therefore erosion-resistant Corbula Bank (formerly: Engelhofer Platte ), especially above the Seelesbach and on the lower reaches from the Bonolzhof, where there is one on both sides over the broad and flat valley basin sharp upper slope edge is formed.

Nature and reserve

The Buchbach, classified according to the type of flowing water as a fine-material, carbonate low mountain range , has only sporadic tree and shrub growth on the bank and a slightly winding course outside the two forest sections on the upper reaches. Two older maps show that the lower course between the inflow of the Seebach and the confluence with the Lanzenbach used to be quite winding and must have been straightened sometime between the mid-19th century and the mid-1930s.

Part of the area of ​​the natural monument Geschäufelter swamp on the plateau of the northern Hahnenberg is just in the southwest corner of the catchment area above the origin of the Seelesbach. The center of the natural monument is a little deep still water surrounded by bushes and then high forest in a former farmer's sand pit, over which dragonflies sometimes stand in summer . The pond drains only periodically southwards over the Hahnenbach to Nesselbach and Bühler.

See also

Individual evidence

LUBW

Official online waterway map with a suitable section and the layers used here: Course and catchment area of ​​the Buchbach
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. ↑ a b Length according to the waterway network layer ( AWGN ) .
  3. ↑ a b c Catchment area according to the basic catchment area layer (AWGN) .
  4. ↑ Lake area after the layer standing waters .
  5. ↑ Catchment area measured on the background layer topographic map .
  6. ↑ a b c d e Length measured on the background layer topographic map .
  7. ↑ a b Length according to the waterway network layer ( AWGN ), increased by a short initial section above, measured on the topographic map background layer , which was not taken into account in the official polygon.
  8. ↑ a b Height according to black lettering on the background layer topographic map .
  9. ↑ Size of the biotope according to the biotope layer .
  10. ↑ River type according to the relevant layer.
  11. ↑ Protected areas according to the relevant layers, nature partly according to the biotope layer .

Other evidence

  1. ↑ 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)
  2. ↑ 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 )
    For the southern part of the catchment area see also the geological map mentioned in the →  Literature section .
  3. ↑ The show the current course quite accurately while on the the only slightly curved course there today between the Bonolzhof and the confluence with the Speltach still shows loops that follow one another closely.

literature

  • Topographic map 1: 25,000 Baden-Württemberg, as single sheet No. 6825 Ilshofen and No. 6826 Obersontheim
  • Geological map of Baden-Württemberg 1: 25,000, published by the Geological State Office 1982, sheet no. 6925 Obersontheim with explanatory booklet (only for the southern part of the catchment area).

Web links