Kochhart

BW

Template: Infobox River / BILD_fehlt

The cook Hart is the longest tributary of the Neckar tributary bunting in the middle of Baden- Württemberg. It flows north from Bondorf about Hailfingen after Reusten and ends there after about eight kilometers in the Ammer. Remarkably, the lower portion of the cooking hard or hard cooking trench at Reusten (one about fifty feet below ground incision with a creek, rocks and calcareous grasslands ), which is a 107 -hectare nature reserve. It is with its limestone rocks one of the most beautiful valleys of the district. The nature reserve " cooking hard digging and Ammertalhänge " consists of eight sub-regions, where the chef hard digging occupies the largest area.

Geological Description

The chef hard digging is because the local limestone is heavily karstified well a dry valley. Its catchment area lies in the rain shadow of the Black Forest and with an annual rainfall of just under 700 mm of the drier areas in Baden- Württemberg. The multiple sources in the Lettenkeuper fed, coming from the west small brook trickles in Hailfingen gradually in the underground. Previously, no water flowed above ground on the district boundaries after Reusten ( Schmidt 1923). Today, lying on the road from Hailfingen after Tailfingen, mechanical-biological treatment plant in the municipalities of Rottenburg- Hailfingen and Bondorf ensures a continuous flow of water. From the treatment plant flow from 400 to 600 cubic meters of water per day during dry weather. Although this water seeps to a large extent, but it never comes to a complete drying up of the stream in other Talverlauf.

Ammer and cooking Hart have been deeply etched in Reusten in a limestone layer - the cooking Hart formed the cook hard digging. Both streams cut through the so-called Reustener saddle aufwölbte in the Pliocene before about five million years. At that time also Swabian Alb and the Black Forest and bunting and chef Hart raised fins probably already on the present routes. The ground rose up slowly so that there remained enough time to einzutiefen into the rock, without having to change its course.

At the end of the Kochharttals about 500 meters long Kirchberg is over Reusten, which takes its name from a church that once stood near the cemetery on the height. On the Reustener Kirchberg one is about in the middle of the oval, the diameter of two to four -mile limestone - saddle. Very beautiful the canyon can be seen that cut bunting and chef hard digging into him.

Vegetation

The left side of the valley of the cooking hard trench is relatively steep. In its entire length a south-facing slope, it is covered with a semi- dry grasslands and was used as a sheep pasture since time immemorial. The day-long tanning provides a wealth of plant species: Pasque flowers, spring cinquefoil, blue Scilla, cypress spurge, Sichelblättriges hares ear, Bocks- belt tongue, Helmknabenkraut, the fragrant orchid, German gentian, fringed gentians, lime, gold and silver thistle.

History

The came out from the main limestone Kirchberg is one of the oldest settlements Württemberg, here finds were discovered from the Stone and Bronze Ages. Also, an extensive medieval castle is demonstrated here. Approximately 6.5 m northwest of the churchyard wall crosses an approximately 20 m long, high in the middle of a further 0.5 m Wall back. In front of him is not a ditch, but between Wall and churchyard lies a shallow bowl. Thus, it is likely to be the outer wall of a now filled- trench section. The actual front wall of the plant is likely to have been located inside the cemetery. Halfway up the steep southwest side of the mountain earlier moved along another wall that was destroyed in recent times by there operated a quarry. One can still discern various ramparts, on the west past the trail at the cemetery.

The castle Kräheneck, the floor plan was pentagonal, the Counts of Tübingen Nagold and later established by the development of an Alemannic refuge as a place of jurisdiction; it was used about 1000 to 1200 AD. Kräheneck was a typical tongue castle, which was protected on three sides by its natural position. In the years 1921 to 1929 the University of Tübingen undertook excavations here.

In the quarry at Kirchberg, which the city of Tübingen operation for gravel production from 1932 to 1970, is now a lake, which directly abuts the Kirchberg.

Use

Until the beginning of the 19th century was built on a large part of the hanging wine; not only on the southern slope of the cooking hard trench - here until 1828, but also on the mountain between latitudes Altingen and Reusten, in Augental and the Kornberg on the road between Poltringen and Reusten. Vineyard wall residues can recognize this until today. Then you used the slopes for the cultivation of orchards and gardens laid out here; but mostly they made ​​them sheep pastures. A large part is broke today.

Limestone was mined in the last century in quarries, gravel extraction and the less frequently for the extraction of elements from the upcoming Nodosuskalk. The now disused quarries are broke some still do, in their pits are ground-water lakes. The mined from 1935 to 1944 limestone from the western part of the heap on Hailfinger district was used for the construction of a military airfield, the break was a subcamp of the concentration camp Natzweiler.

Highway bridge

The A81 motorway crosses the cook hard - digging, which is also called Koch hard digging, between exits Herrenberg and Rottenburg am Neckar on a 30 meters high and 252 meters long motorway bridge.