Soil Geo Path

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Course of the soil geo-path

The Boden-Geo-Path is a twelve-kilometer hiking trail in the Teltow-Fläming district in Brandenburg . It consists of two geological nature trails that lead through the nature reserve Sperenberg Gypsum Quarries and the Klausdorfer clay pits .

history

The soil in this region was formed around 10,000 years ago at the end of the last ice age . It emerged brown earth , Parabraunerde , Kolluvisol and peat soils . In the area around Sperenberg , Zechstein Age salt rose through the surface in a salt dome . The 80 meter high gypsum mountain was created by leaching . The gypsum as well as the clay in the northeastern Klausdorf have been mined in opencast mining since the Middle Ages and thus shaped the landscape. In the course of industrialization in the middle of the 19th century, brick factories , plaster mills and other handicrafts were established. They supplied raw materials that were used, for example, in Berlin via the Notte Canal . The gypsum mining was stopped in 1958; Bricks are still produced today. In order to develop the area for tourism , the soil geo-path was opened in 2008 . It is intended to promote “the transfer of pedological and geological knowledge” and thus “promote a greater understanding of our environment and the careful use of the limited soil resource”.

Structure of the soil geo-path

View from the panorama path into the remaining hole 1
Remaining hole 3
Info point for the Sper I / 1867 borehole in Sperenberg

The path consists of two independent sections that can be used separately but also together. The circuit through the nature reserve in Sperenberg begins east of the Evangelical village church in Sperenberg at Gipsstrasse 12. The first of a total of seven information boards is located here. There is a separate information window with Toni the millipede for children and young people . After around 300 meters, you will reach “Bruch 1”, which is now filled with groundwater. In the middle of the remaining hole you can still see a small island on which there was once a mast for the cable car that was used to transport the gypsum from the gypsum quarries to the gypsum factory. A short ascent takes you to a “panorama path” that leads along the edge of the embankment to the Gipsberg. There an information board shows the soil development in the region, describes the soil horizons and explains the soil analysis using a drill stick . Another board provides information about the formation of parabrown earth as well as the causes and consequences of soil erosion . Behind the Gipsberg, the path branches off in an easterly direction and runs along a windbreak hedge. After about one kilometer there is another information board at the edge of the forest and a soil profile that shows the structure of Kolluvisol. North of this station, the second part of the Boden-Geo-Path branches off to Klausdorf. If you continue in an easterly direction, you will reach the Faule Luch , a lake that adjoins the Krummen See to the northeast . Both were formed at the end of the last Ice Age, after excess water flowed through the Urstom valleys and the topsoil sagged. These depressions gradually filled with groundwater and formed the two lakes, on the banks of which a fen formed. Another information board describes the origins of the two lakes. The rare spawning herb has been identified on its banks - so far unique in Brandenburg . The path continues in a southerly direction to the last of the seven information boards that describe the structure of the brown earth, its browning and silting. The only natural sinkhole in Brandenburg is at the last junction of the path . On the way there you pass another remaining hole "Bruch 3" and the remaining hole 2, which, however, does not belong to the nature reserve: It was used, among other things, as a company landfill. Here, the first deep well in the world was carried out in 1867 to 1871, in which at 1271.60 meters drilled was. An information stele reminds of the drilling, while an orange buoy in the remaining hole shows the exact location. Part of this route is identical to the 66 lakes regional park route , which ultimately leads back to the church.

The circular route through the Klausdorfer clay pit begins with the first two of six information boards on the corner of Zossener Strasse and the Gipsweg. In addition to an overview map, they describe the history of the brick industry in Klausdorf. If you follow the path in a southerly direction, you come to a former ring furnace , which is now used by bats as winter quarters. The former Klausdorf landfill is located around 1.5 km further south. From 1974 to 1991 a total of 420,000 m³ of waste was deposited on an area of ​​45,000 m². From 1996 to 1997 the landfill was first secured and then recultivated. In 2005 the rare large piston water beetle was discovered in a recultivated small body of water at the foot of the landfill . From this point the path runs north again through an avenue to a sand pit, where information is also provided about the structure of the brown earth. A branch path branches off to the south to the nature reserve. Passing former clay pits, you get back to the starting point of the circular route.

The entire path is marked with a stylized millipede, the words "Boden-Geo -pfad" and a green diagonal bar on a white background.

Individual evidence

  1. a b c Boden-Geo -pfad , website of the German Hiking Association , accessed on December 31, 2013.
  2. Soil-Geo-Path in the district of Teltow-Fläming: Sperenberg gypsum quarries, station 1: "Why the whole thing?"
  3. Soil-Geo-Path in the Teltow-Fläming district: Sperenberger Gipsbrüche, Station 6: Niedermoor
  4. Soil Geo-Path in the Teltow-Fläming district: Klausdorfer Tongruben, Station 5: Landfill

literature

  • District of Teltow-Fläming, Office for Agriculture and Environment, SG Water and Waste: On good ground - Soil-Geo-Path in the district of Teltow-Fläming . 1st edition 2008. 2008, p. 40 .

Web links

Coordinates: 52 ° 8 ′ 14.1 ″  N , 13 ° 22 ′ 53.5 ″  E