Ohre

The ear at Calvörde

River

The ear is located in a valley of water-bearing streams in the Lower Saxony Gifhorn. The area is located near the border with Saxony- Anhalt and is located approximately six kilometers southeast of Witt rings. Until about the beginning of the 20th century, their source was located on a farm in Ohrdorf. The name refers to the river. As a result of groundwater lowering the ear is now in a grassy area between the ear and hazel Horst village, where on the first three kilometers Bach flow together twelve water-bearing trenches. From there, the ear leads in a south-easterly direction as a natural border between Lower Saxony and Saxony -Anhalt in the Lower Saxony Brome. Shortly before the place itself meanders have received. Since there find rare species of fauna and flora, the three nature reserves Ohreaue, Middle Ohreaue and Ohreaue Altendorf were established. In Brome in the flood plain of the river made ​​in 1979, two lakes, which are fed from the river. The upper lake has an area of ​​1.7 ha, the lower lake is 3 acres in size. The water areas represent a biotope surface and form a smaller recreational area. Above all, they serve the flood protection in Brome, as previously inflicting greater damage in the village floods with ice. After Brome leaves the ear Lower Saxony and flows in the area of Saxony- Anhalt. In Jahrstedt the headwaters of the river which enters there in the wetland Drömling ends. It flows through the area at about 29 kilometers to the southeast. In Calvörde the lower reaches of the river begins. In earlier times he served with several creeks to protect the castle Calvörde. Then he touches the northern edge of Magdeburg, and also forms the border with the north subsequent Altmark. The ear flows through the county beading on Haldensleben after Wolmirstedt and flows Rogätz into the Elbe.

Historical Description

• Samuel Walther 1737: Magdeburgische Merckwürdigkeiten Part VII under the subtitle: True Uhrsprung and fluidized Ohra of the river, together with the Drömling.

Drömling flow

The ear flows through the center of the roughly 300 -square-kilometer Drömling. It was formed after the last ice age as a large-scale wetland fens. The endorheic sink was almost up to their drainage in the 18th century fed by Aller and ear, impenetrable swamp that was a Volkstumsgrenze between East and West has always been because of his Undurchquerbarkeit. According to the reports by Samuel Walther from 1737, the ear in Drömling originally had no fixed river bed. In Drömling is a very low watershed between Weser and Elbe.

The ear was regulated in Drömling towards the end of the 18th century under Prussian rule, together with the drainage of the area. 1770 learned the Prussian King Frederick the Great of the plight of Drömling villages with floods. He ordered to make the belonging to the eastern part of Prussia Drömling for colonists cultivated. 1780 Prussia began with the surveying work, in 1783 with the drainage with about 3,000 workers. For the Drömling in parts diffusely flowing through tubes a riverbed was excavated to 29 kilometers. Throughout the area emerged chessboard-shaped channels and ditches, bridges and dams were built. 1796, the drainage works were completed after 13 years of service. In this way, approximately 300 km ² of land was reclaimed. In the countryside, many colonies as colony Broad Oak, Dannefeld, Etingen and Jerchel were established.

In order to ensure the preservation of the landscape, the state government of Saxony -Anhalt created in 1990, the Natural Park Drömling and 2005, the largest protected area in Saxony-Anhalt, ear - Drömling.

Ohresee in Brome

Ear in Drömling at Oebisfelde - Buchenhorst

The German Corner near the Kämkerhorst, mouth of the channel Friedrich left in the ear

Ear in Drömling

Hydraulic and use

The conversation of the river in Lower Saxony area is supported by the association founded in 1961 entertainment ear based in Gifhorn. The founding of the Association required by the Wall in 1961 and the subsequent expansion of the inner German border. Then the part of the GDR, the water management of the border river was neglected because border security took precedence over flood protection. In the area of the district Gifhorn the All- ear Association is responsible for water management.

On the territory of the former GDR waters of the ear was rained out on pasture at Hanum from 1966. For this, the LPG Philipp Müller put on a trench for water to the border river flowed towards the east. When lifting a storage pond ancient sources the ear were uncovered, which provided 100 m³ per hour ( 27.8 l / s) spring water.

Others

The tubes used from the Drömling to the confluence of the Elbe Valley, the Breslau -Magdeburg - Bremen glacial valley. However, it flows opposite to the original direction of flow of glacial valley ( east to west) from west to east. It has, therefore, beginning, back border cut from its mouth in the old valley floor.

From Oebisfelde - Buchenhorst to Glindenberg the Mittelland Canal uses the valley of the ear and runs parallel to it.

By the 13th century it led already in Wolmirstedt in the then Elbarm.