Mittelieg-Bergland

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Mittelieg-Bergland
Systematics according to Handbook of the natural spatial structure of Germany
Greater region 1st order Low mountain range threshold
Greater region 2nd order Rhenish Slate Mountains
Main unit group 33 →
Süderbergland
Natural space 330 →
Mittelieg-Bergland
Geographical location
Coordinates 50 ° 47 '7 "  N , 7 ° 38' 35"  E Coordinates: 50 ° 47 '7 "  N , 7 ° 38' 35"  E
Mittelieg-Bergland (North Rhine-Westphalia)
Mittelieg-Bergland
Location Mittelieg-Bergland
circle Oberbergischer Kreis , Rhein-Sieg-Kreis , Altenkirchen (Westerwald) district
state North Rhine-Westphalia , Rhineland-Palatinate
Country Germany

The Mittelieg-Bergland is a low mountain range up to 480  m high on both sides of the Sieg between Betzdorf and Hennef at the interface of the federal states of North Rhine-Westphalia and Rhineland-Palatinate . In the natural spatial order according to Meynen , the Mittelieg-Bergland represents the main unit 330 within the Süderbergland (main unit group 33).

The mountainous region narrowing to the west in the shape of a wedge to the Cologne Bay flows over to the east into the historic Siegerland , where it is replaced by the natural landscape , which it resembles in relief .

Natural structure

The Mittelieg-Bergland is structured as follows:

Southern Mittelieg-Bergland

The southern Mittelieg-Bergland , also known as the Siegerwesterwald , is a mountainous region that roofs over the Westerwald to the northwest and narrows to the west, to the left of the Sieg from below Betzdorf to above Hennef . It is divided into the Nisterbergland along the lower reaches of the Elbbach and Nister with the well-known Kroppacher Schweiz in the east and the Leuscheid, which forms the watershed between Sieg and Wied , in the west. While the Nisterbergland lies entirely in Rhineland-Palatinate , the state border with North Rhine-Westphalia runs over the Leuscheid .

The Nisterbergland rises significantly in elevation to the southeast towards the High Westerwald , while the Leuscheid, which adjoins it to the west, forms an independent focus of altitude to the north and south.

Mitteliegtal

The Mitteliegtal is the valley of the Sieg from below Betzdorf to above Hennef . Its east up to and including Hamm is in the Altenkirchen district , Rhineland-Palatinate , the west in the Rhein-Sieg district , North Rhine-Westphalia .

The Mitteliegtal is a winding Kastental , whose turns of z. Partly rocky steep slopes are limited on the outside, while the partly loess-covered inner sides rise rather gently and in terraces .

The surface of the Sieg falls in the course of the Mitteliegtal from 180 to about 70 m above sea level, whereby the valley floor in the central and eastern part is up to 20 m lower, while the valley edges go up to almost 300 m.

The valley slopes are wooded, with oak and hornbeam typical of the Siegerland coppice forest in Haubergen . On the other hand, there is agricultural land on the terraces, and on the valley floor mainly grassland and less arable land.

Northern Mittelieg-Bergland

The northern Mittelieg-Bergland is a wedge-shaped narrowing mountain region to the right of the Sieg from below Betzdorf to above Hennef . It is divided into the Morsbacher Bergland in the east and the Nutscheid in the west. While the Nutscheid lies entirely in North Rhine-Westphalia, the border with the Rhineland-Palatinate Wildenburger Land runs over the Morsbacher Bergland .

The northern Mittelieg-Bergland continues the ridge of the Oberbigge plateau or the southern Sauerland Rothaarvorhöhen to the southwest, but appears comparatively independent. The ridge of the ridge is clearly to the northwest, in the immediate vicinity of the adjoining landscapes of Wiehl-Bergland and Bröl plateau . The streams and rivers run from this ridge mainly to the south. Rivers and streams with a source in the Morsbacher Bergland either leave the landscape soon - such as B. Bröl , Waldbrölbach and Löcherbach - or run completely within it.

The Waldbrölbach and the lower reaches of the Bröl form roughly the (external) north-western border of the mountainous region.

Rivers

The tributaries of the Sieg from Nisterbergland and Leuscheid (left) and Morsbacher Bergland and Nutscheid (right) in the Mittelieg-Bergland with a catchment area of ​​at least 10 km² are sorted downstream:

Surname
 Inflow
side
 Length
[km]
 Catchment
area
[km²]
 Discharge
(MQ)
[m³ / s]		 section

 Headwaters

 Natural
space
 Places (downstream)
(*: estuary)

 DGKZ
Top victory not applicable 57.4 761.3 16.3 Middle victory 1 Rothaar Mountains , Siegerland , High Westerwald Siegen , Betzdorf * 272
Elbbach Left 21.9 54.1 Middle victory 1 Neunkhausen-Weitefeld Plateau 322.1 Knowledge * 272-36
Knowing Bach right 25.9 130.0 Middle victory 1 Morsbacher Bergland 330.2 Morsbach , knowledge * 272-38
Nest Left 63.8 246.0 4.30 Middle victory 1 Westerwald basalt plateau 322.0 Knowledge-Nisterbrück * 272-4
Holper Bach right 14.4 30.7 Middle victory 1 Morsbacher Bergland 330.2 Holpe 272-52
Seelbach Left 8.2 19.3 Middle victory 1 Nisterbergland 333.0 Hamm (victory) 272-534
Middle victory 1 not applicable 82.9 1287.5 Middle win 2 + Oberwesterwald , + Nisterbergland + Morsbacher Bergland Knowledge , Hamm (victory) * 272
Irsenbach Left 12.0 36.9 Middle win 2 Altenkirchen plateau 324.8 Oberirsen , Imhausen * 272-54
Gierzhagener Bach right 10.1 18.0 Middle win 2 Morsbacher Bergland 330.2 Windeck * 272-56
Ottersbach right 6.8 11.5 Middle win 2 Nutscheid 330.2 272-578
Eipbach Left 10.1 23.8 Middle win 2 Asbach plateau 324.8 Eitorf * 272-58
Krabach Left 10.2 19.8 Middle win 2 Asbach plateau 324.8 272-59
Middle win 2 not applicable 131.5 1542.4 27.2 Win 1 + Leuscheid + Nutscheid + Niederwesterwald Windeck , Eitorf 272
Bröl right 45.1 212.7 3.8 Win 1 Morsbacher Bergland 330.2 Waldbröl 272-6
Hanfbach Left 19.0 51.5 Win 1 Asbach plateau 324.8 Hennef * 272-72

The Bröl, like its tributary Waldbrölbach , has its source in the Morsbacher Bergland, but runs almost entirely in the external units Wiehl-Bergland and Brölhochfläche , with Waldbrölbach and lower reaches of the Bröl running close to the border. The Hanfbach rises opposite, near the western edge of the Leuscheid, but runs right up to the confluence in the Pleiser Hügelland .

In the far east of the Morsbacher Bergland, some brooks spring from the system of the Asdorf already in Siegerland, such as B. the Löcherbach , which however soon leave the natural area.

River system of the Wied

On the southern slope of the Leuscheid there are also some rivers that drain the Wied , especially (from east to west):

  • Erbach (7.9 km, 33.2 km²)
    • Driescheiderbach (5.6 km, 8.9 km²)
  • Ölfenerbach (6.7 km, 8.0 km² - just outside)
  • Hemmelzerbach (6.2 km, 11.9 km²)
  • Mehrbach (22.9 km, 65.9 km²)
  • Pfaffenbach (20.6 km, 62.8 km²)

Individual evidence

  1. ↑ Heinz Fischer: Geographical Land Survey: The natural spatial units on sheet 124 Siegen. Federal Institute for Regional Studies, Bad Godesberg 1972. →  Online map (PDF; 4.1 MB)
  2. ^ Ewald Glässer: Geographical land survey: The natural space units on sheet 122/123 Cologne / Aachen. Bundesanstalt für Landeskunde, Bad Godesberg 1978. →  Online map (PDF; 8.7 MB) - has only a minimal share of the Mitteliegtal
  3. ↑ Map service of the landscape information system of the Rhineland-Palatinate Nature Conservation Administration (LANIS map) ( Notes ) Attention : Part of the Siegerland Freudenberger Bergland was "incorporated" in the area to the Morsbacher Bergland in the east on the middle course of the Asdorf near Niederfischbach and the Löcherbach .
  4. ↑ Landscape profile of the large landscape 33 Süderbergland of the landscape information system of the nature conservation administration Rhineland-Palatinate ( notes )
  5. ↑ Landscape profile of the southern Mittelieg-Bergland of the Federal Agency for Nature Conservation ( information )
  6. ↑ Landscape profile of the landscape area 330.00 Leuscheid of the landscape information system of the Rhineland-Palatinate nature conservation administration ( notes )
  7. ↑ Landscape profile of the landscape area 330.01 Nisterbergland of the landscape information system of the Rhineland-Palatinate nature conservation administration ( notes )
  8. ↑ Middle Siegtal landscape profile of the Federal Agency for Nature Conservation ( information ) (goes to the west and east beyond the Mitteliegtal) <
  9. ↑ Landscape profile of the landscape area 330.1 Mitteliegtal of the landscape information system of the Rhineland-Palatinate nature conservation administration ( notes )
  10. ↑ Landscape profile of the northern central Sieg-Bergland of the Federal Agency for Nature Conservation ( information )
  11. ↑ Landscape profile of the landscape area 330.21 Morsbacher Bergland of the landscape information system of the Rhineland-Palatinate nature conservation administration ( notes )
  12. ↑ Topographical Information Management, Cologne District Government, Department GEObasis NRW ( Notes )
  13. ↑ GeoExplorer of the Rhineland-Palatinate Water Management Authority ( information )
  14. ↑ Water directory of the State Office for Nature, Environment and Consumer Protection NRW 2006 ( Memento from February 15, 2010 in the Internet Archive ) (PDF; 1.03 MB)
  15. ↑ Water directory of the State Office for Nature, Environment and Consumer Protection NRW 2010 (XLS; 4.67 MB) ( Notes )
  16. ↑ Natural area codes shortened to one decimal place for sorting reasons!
  17. ↑ For the sake of better sortability, hyphens have been introduced depending on the 272 ("victory").
  18. ↑ The Holper Bach is occasionally also called Bruchhauser Bach after its source brook / upper course .

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