When and why was the NSG founded

Nature reserves (NSG)

NSG 180 Ahlbecker Seegrund

Location: 3 km east of Eggesin between the towns of Ahlbeck, Ludwigshof, Hintersee and Gegensee

Size: 1,287 ha

Municipalities: Ahlbeck

Protected position: 23.09.1987

Protection purpose: Protection and preservation of a large limestone bog.





Description: The protected area includes the largest man-made Kalkniedermoor in Germany with 930 hectares.

The Ahlbecker Seegrund, also known as the Ahlbecker Fenn, goes back to the draining of the Ahlbeck lake, which began as early as the 18th century. The purpose was to gain meadow areas, for which the Ahlbeke was expanded as a natural drain from 1742. According to records, colonists' villages were founded in the outskirts of the lake, about 20 kmĀ² in size. It was not until 1979 that almost complete drainage took place with the further expansion of the drain to Rieth. The agricultural use of the former lake bottom turned out to be very difficult. The first dry areas turned out to be very sandy, the other areas were mostly covered with digested sludge. At the beginning of the 20th century the water level rose again and the small Ludwigshofer See emerged from a dredging hole for sea sludge extraction. But even today there is noticeable drainage over the Teufelsgraben.

Because of its inaccessibility, many animal and plant species worth protecting find their habitat in the protected area. The southern part of the silting bog has extensive reed beds, while sedges, swamp ferns and sparse reed islands dominate in the northern part. After the lake disappeared, swamp forests and extensive gray willow bushes developed here.

The impassable, partly moist and partly dry edge areas of the moor have been used extensively as grassland since the lake was gradually drained. The species-rich meadows that were created under this traditional usage regime have become a rarity in today's cultural landscape. Among other things, grassland societies Silver grass pioneer lawns, oat meadows and hogweed cabbage thistle meadows. Broad-leaved orchid (RL 2), flesh-colored orchid (RL 2) and their hybrids as well as swamp heart leaf (RL 2) are rare plant species on the hay meadows.

The reeds and the reeds, rich in sedge species, are the habitat for the great bittern (RL 1), common snipe (RL 2), bearded tit, spotted rail, bluethroat, meadow harrier (RL 1), crane as well as common, field and tube swirl. Tree falcons (RL V), gray shrike (RL 3) and woodlark can be found on the meadows and along the forest strips. 355 species of large butterfly and 36 species of ground beetle have been identified in the area. There is a significant moor frog population and a remarkably large grass snake population. Adders are also not uncommon in the area.

Public use: Due to its size and inaccessibility, the area is poorly disturbed. A cycling and hiking path leads around the entire area, some of which allow a view of open areas.