Tolmecke-Siepen nature reserve

The nature reserve Tolmecke-Siepen with a size of 1.7  hectares is located southwest of Bönkhausen in the urban area of Sundern (Sauerland) . The area was designated as a nature reserve (NSG) with an area of ​​1.6 hectares for the first time in 1993 with the Sundern landscape plan by the district council of the Hochsauerlandkreis . When the landscape planner Sundern was reorganized, the NSG was re-identified and slightly enlarged. The NSG is surrounded by the Sundern nature reserve .

description

A large part of the NSG is a dump of the lead mine Kurfürst Ernst in the Tolmecke valley. Part of the heap is devoid of vegetation. In the valley there are smaller depressions in the terrain and pile-like embankments. The Tolmecke brook flows naturally in a 0.5 to 2.5 m wide, gravelly, gravelly brook bed on the southern edge of the NSG. In the west, the brook swings slightly and runs through a drained former ore wash pond. The approximately 3 m high dam was breached. On the bottom and on the gently sloping southern embankment, there are alder floodplain forests that are soaked in seepage, sometimes only in the form of narrow strips, as well as fresh and moist alder stands. The brook has its source in several primary sources free of vegetation. Outside the wash pond, the valley floor is occupied by age and structure heterogeneous birch and alder stands with herbaceous undergrowth. Superimposed are turned several largely silted and overgrown with reeds stocks pinging .

The subsequent northern slope is mostly planted with mixed oak forest, and in small areas with spruce. Small heather areas and open, coarse-grained overburden areas are stored along an unused path. The soil is likely to warm up a lot and is covered in areas with cup lichens (Cladonia spp.). In addition to its cultural and historical importance, the area with its site and vegetation mosaic consisting of dry-warm to spring-wet areas, embedded ponds, raw soil areas, heaths, spring forests and natural spring streams is a very important refuge habitat. Particularly noteworthy are the occurrences of king fern , one of the few sites in the Hochsauerlandkreis, and devil bite in the eastern valley area .

The NSG is completely surrounded by spruce forest.

Protective reason

The Tolmecke-Siepen was designated as an NSG to protect, maintain and optimize the culturally and historically valuable, partially open dump of the former mining site with near-natural and anthropogenic, rare special locations in a forest landscape dominated by coniferous forests.

Protective measures

When designating the NSG, it was required to remove non-indigenous woody plants and to prevent undesired woody succession. The undesirable woody plants are red spruces , which come from the seeds of the surrounding spruce forests. In January 2015, the joint landscape maintenance team of the Biological Station Hochsauerlandkreis and the Lower Landscape Authority of the Hochsauerlandkreis removed all spruce trees with a diameter of less than 15 cm at chest height.

See also

• List of nature reserves in the Hochsauerlandkreis

literature

• Hochsauerlandkreis - Lower Landscape Authority (Hrsg.): Landscape plan Sundern . Meschede 1993.
• Hochsauerlandkreis: Landscape plan Sundern - reorganization . Meschede 2019.

Web links

• "Tolmecke-Siepen" nature reserve in the specialist information system of the State Office for Nature, Environment and Consumer Protection in North Rhine-Westphalia

Individual evidence

1. ^ Hochsauerlandkreis - Lower Landscape Authority (ed.): Landscape plan Sundern , Meschede 1993, p. 33.
2. ↑ Landscape plan Sundern - reorganization, p. 69 ff. (PDF) Retrieved on May 5, 2019 . 

Coordinates: 51 ° 16 ′ 33.7 "  N , 8 ° 0 ′ 46.8"  E