Small Örtze

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Small Örtze
Small Örtze near Oerrel

Small Örtze near Oerrel

Data
location Lower Saxony , Germany
River system Weser
Drain over Örtze  → Aller  → Weser  → North Sea
source east of Munster (Örtze)
53 ° 0 ′ 11 ″  N , 10 ° 10 ′ 58 ″  E
Source height 79  m above sea level NN
muzzle southwest of Kreutzen (municipality of Faßberg) Coordinates: 52 ° 54 '51 "  N , 10 ° 7' 24"  E 52 ° 54 '51 "  N , 10 ° 7' 24"  E
Mouth height 60  m above sea level NN
Height difference 19 m
Bottom slope 1.5 ‰
length 12.8 km
Left tributaries Trauener Graben

The Kleine Örtze is a tributary of the Örtze , in the Lower Saxony district of Heidekreis .

course

The Kleine Örtze rises east of Munster , within the Munster-Nord military training area . After a kilometer, it crosses the Munster - Uelzen railway line and then continues south through the Munster district of Oerrel. Shortly after the village it crosses the federal road 71 . Further south through its original and renatured valley, it then flows to Trauen and on to Kreutzen. Here it flows into the Örtze . Before its renaturation, the upper reaches of the Kleine Örtze functioned as a drainage ditch for the former high moor, which has now been reforested. The entire length of the narrow valley, with the exception of the first kilometer, was declared a nature reserve with a total area of ​​330 hectares in 1993 . (Designation: Valley of the Little Örtze ; Registration: NSG LÜ 207).

Flora and fauna

On rare plants that are specially protected according to the German Federal Species Protection Ordinance, the swamp heart leaf (Parnassia palustris) and the knotweed pondweed (Potamogeton polygonifolius) grow here .

Rare insects include the water beetle Deronectes latus, the drowned fast swimmer Agabus guttatus and the dwarf swimmer Hydroporus rufifrons, as well as the larvae of the green stonefly Isoptena serricornis.

Patency for fish

There was a mill jam in Trauen . The weir has now fallen into disrepair, the dust savers have been removed. Nevertheless, the rest of the former weir with its drop height for small fish species and even for trout an obstacle to Aufwanderung represents.


  • Valley of the Little Örtze

  • Hahnenmoorsee near Oerrel

  • The little Örtze with trust

  • Derelict weir in trust

  • The mouth of the Kleine Örtze (right) in the Örtze, near Kreutzen

Individual evidence

  1. ↑ NSG Tal der Kleine Örtze with an overview map

Web links

Commons : Kleine Örtze  - Collection of images, videos and audio files