Thedinghauser Vorgeest
| Thedinghauser Vorgeest | |||
|---|---|---|---|
| Systematics according to | Handbook of the natural spatial structure of Germany | ||
| Greater region 1st order | North German Lowlands | ||
| Greater region 2nd order | Central North German Lowland | ||
| Greater region 3rd order | North German Geest | ||
| Main unit group | 62 → Weser-Aller-Flachland |
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| Natural space |
621 → Thedinghäuser Vorgeest |
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| Geographical location | |||
| Coordinates | 52 ° 55 '48 " N , 8 ° 58' 12" E | ||
|
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| state | Lower Saxony | ||
| Country | Germany | ||
The Thedinghäuser Vorgeest is a main natural spatial unit within the natural spatial greater region of the Central North German Lowland. It is part of the natural area of the Weser-Aller lowlands .
Natural structure
The Thedinghäuser Vorgeest is divided into the following natural subunits:
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(to 62 Weser-Aller-Flachland )
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621 Thedinghäuser Vorgeest
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(621.0 Thedinghauser Vorgeest)
- 621.00 Delmenhorster valley sand plates
- 621.01 Bruchhausen Bruch lowlands
- 621.02 Thedinghauser terrace
- 621.03 Martfelder Terrace
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(621.0 Thedinghauser Vorgeest)
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621 Thedinghäuser Vorgeest
The Thedinghauser Vorgeest is bounded in the south by the Mittelwesertal, in the southwest by the natural spatial main unit of the Syker Geest , in the west by the natural spatial main unit of the Delmenhorster Geest , in the north by the main unit of the Wesermarschen and in the east by the Verden Weser valley .
location
The Thedinghäuser Vorgeest covers large parts of the urban area of Delmenhorst , the district of Huchting belonging to Bremen , parts of the municipalities of Syke and the joint municipality of Bruchhausen-Vilsen , which belong to the district of Diepholz, and parts of the joint municipality of Thedinghausen, which belongs to the district of Verden .
Overall, the Thedinghausen Vorgeest covers an area of 449 km².
Natural space
The Thedinghäuser Vorgeest is a structured cultural landscape that represents the transition between the Hohe Geest and the Weser Valley. It is characterized by small height differences, which are on average around 8 m above sea level, in the north even 3 m above sea level and are therefore considered to be potentially at risk of storm tides. The highest elevations can be found in the southern areas of the Thedinghäuser Vorgeest with 8 to 10 m above sea level in the area of the Thedinghäuser terrace , as well as in the Martfelder terrace , where terrain heights of 10 to 12 m above sea level are reached. Alder stands are characteristic of the lowland areas, coniferous forest stands are only found in dry locations on the edges of the high Geest.
The natural area is characterized by sandy soils and, in unfavorable low-lying areas, by fens . It was created during the Glacial Vistula , when the receiving waters coming from the Hohe Geest brought large amounts of sand under periglacial conditions and deposited it in the form of alluvial fans at the foot of the Geest in the Weser-Aller glacial valley.
Massive overexploitation of nature as a result of the plague management that was common up until the agricultural reforms of the 19th century, as part of the eternal rye cultivation, led from the High Middle Ages to the formation of large heathland landscapes in the Thedinghauser Vorgeest with their characteristic podzolas , which are glazed in particularly unfavorable places . These heathland landscapes are still expressed today in traditional field and place names.
With the introduction of mineral fertilizers and the division of the common land , these heather areas were converted into arable land or reforested with pine monocultures in the inland dunes, which are very unfavorable for agriculture . In the area around Bremen it came about in the context of industrialization, v. a. but after the Second World War to a massive settlement expansion.
Cultural landscape
The Thedinghäuser Vorgeest is a densely populated natural area in the greater Bremen area with old clustered villages in the flood-proof areas. The most important settlement center is the city of Delmenhorst , which became an important industrial location in the second half of the 19th century due to its proximity to the Hanseatic city of Bremen and its convenient location on the Oldenburg-Bremen railway line, which opened in 1867 , and which from 1870 quickly evolved from a small arable town on Transition of the old long-distance trade routes of the Frisian and Flemish Roads via which Delme turned into an industrial city. In the boom phase after the Second World War, another massive settlement expansion took place here, which also affected the Stuhr community and the Huchting district of Bremen. The flood and storm flood endangered areas in the area of the Ochtum lowlands, as well as the peripheral parts south of the municipality of Stuhr, remained excluded from the settlement development.
In the parts of the natural area Thedinghäuser Geest not affected by the massive settlement expansion, agriculture is a defining element of the landscape. While arable farming is practiced in the drier locations, grassland farming predominates in the moist locations. Characteristic of the landscape at the damp locations are the linear alder stands on the drainage ditches running along the parcel boundaries, which give the natural area its partly park-like landscape.
Nature reserves
The numerous pools created by dike breaches in areas threatened by floods in the Weser and storm surges are of considerable nature conservation importance. Due to the sandy subsoil, numerous still waters emerged here, such as the Sandhauser Brake and the Schwarze Brake in the northern urban area of Delmenhorst. Overall, around 1.3% of the total area of the Thedinghäuser Geest is under nature protection. A dense network of drainage ditches in the area of the Ochtum lowlands , which have an important function as flood reservoirs, is also of considerable nature conservation importance .
Rivers
The most important receiving waters of the Thedinghauser Vorgeest are the Ochtum , its source river Hache and its tributaries Delme and Varreler Bäke . In the Thedinghausen area, the Eyter is a receiving water that drains towards the Weser. High groundwater levels and a constant risk of flooding make it necessary to maintain an extensive network of drainage ditches.
Individual evidence
- ^ A b Sophie Meisel: Geographical land survey: The natural space units on sheet 56 Bremen. Federal Institute for Regional Studies, Bad Godesberg 1961. → Online map (PDF, 7.6 MB)
- ^ Sophie Meisel: Geographical land survey: The natural spatial units on sheet 72 Nienburg. Federal Institute for Regional Studies, Bad Godesberg 1959. → Online map (PDF, 4.24 MB)
- ↑ De facto, the Thedinghäuser Vorgeest represents both the main unit (4th order region) 621 and the 5th order unit 621.0.
- ↑ Federal Agency for Nature Conservation : Transnational Biotope Network , p. 2, accessed on May 20, 2019.
- ↑ Thedinghäuser Vorgeest natural area. ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. Website of the district of Verden, accessed on May 14, 2012.
- ^ Lower Saxony State Office for Statistics (NLS), Lower Saxony Institute for Historical Regional Research e. V. (NIHR) (Ed.) (2007): Lower Saxony - the state and its regions. P. 229.
- ↑ Landscape profile 62100 Thedinghäuser Vorgeest. ( Memento from July 30, 2012 in the Internet Archive ) Federal Agency for Nature Conservation. Retrieved May 14, 2012.
- ^ Lower Saxony State Office for Statistics (NLS), Lower Saxony Institute for Historical Regional Research e. V. (NIHR) (Ed.) (2007): Lower Saxony - the state and its regions. P. 229.
- ↑ Rosemarie Krämer, Heinz Hoffer: Between storm surge and upper water. From the history of the I. Oldenburg dike tape. Oldenburg 1991.
- ↑ 62100 Thedinghäuser Vorgeest. ( Memento from July 30, 2012 in the Internet Archive ) Federal Agency for Nature Conservation. Retrieved April 30, 2012.
