Sorpe (Röhr)

BW

The Sorpe is a 18.6 km long, orographic left or south-westerly flow of Rohr in Sauerland, North Rhine -Westphalia ( Germany ).

The river rises in the Lenneberg country. From its source, which is located in the nature park Homert in wild meadow, a small hamlet of Sundern, on the western slope of the Schombergs ( 648 m above sea level. NN ), the Sorpe flows in mostly northerly direction over the Sundern districts Hagen, Allendorf and Amecke in the forebay the Sorpetalsperre one. Where the local layers of Hagen, Allendorf and Amecke are traversed. In the spatial locations of the river is heavily altered by humans. In particular, the banks are fixed in the local documents. Shortly after flowing through the actual Sorpetalsperre the Sorpe opens in Sundern- Hachen in the Rohr. Where the first 100 meters after the Sorpetalsperre rather a channel same.

Nature and Environment

State of Sorpe

The Sorpe was examined on behalf of the Ministry for the Environment, Agriculture and Consumer Protection of North Rhine -Westphalia ( MUNLV ) For the management plan for the Water Framework Directive of the EU. The various aspects of the Sorpe was evaluated. It was carried out in the examination, a division into two areas. The one part of the field went from the source to the local situation Allendorf and the other portion from local situation Allendorf to Sorpetalsperre. The passage of Sorpe below the dam was not investigated. The Sorpe as a whole was classified as natural, despite barriers in the local documents. The general degradation was to Allendorf rated as moderate and from Allendorf as well. The saprobic to Allendorf classified as very good as well and from Allendorf. For benthic invertebrates ( living at the bottom of the water microbes ) to Allendorf as moderate and from local situation Allendorf as well. The fish fauna of the Rohr has been studied only from Allendorf and classified as moderate. When macrophytes ( aquatic plants visible with the naked eye, living in and on the water surface, including Chara, mosses and ferns and seed plants such as pondweed ) to Allendorf as well and from Allendorf to be very good. In Phytobenthos (live at bottom of the water plants, mainly algae) as well as Allendorf, above Allendorf moderate. With regard to the burden of Sorpe with nitrate, metals, and other potentially harmful substances the body of water it was probably as good, good to very good classified. Because of the barriers in the local positions of the ecological status and the potential was to improve the Sorpe was only classified as moderate. The chemical state of Sorpe was evaluated on whole river as well.

Reserves

The passage of Sorpe has been protected outside the local documents as a landscape conservation area.

Breeding birds

At the Sorpe been kingfisher, dippers, gray wagtails and Mallard were detected as breeding birds. As food stays during herons and black stork.