Birkensee (Nürnberger Land)
| Birch Lake | ||
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| Sand dune near the large birch lake | ||
| Geographical location | Bavaria | |
| Location close to the shore | Röthenbach on the Pegnitz | |
| Data | ||
| Coordinates | 49 ° 27 '24 " N , 11 ° 15' 30" E | |
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| Altitude above sea level | 334 m | |
| surface | 5 ha | |
| Maximum depth | 11 m | |
The Birkensee is a local recreation area in the area of the city of Röthenbach in the district of Nürnberger Land . It consists of the large and the small birch lake.
location
The lakes are located about 13 km east of Nuremberg in the Lorenzer Reichswald , near the Nuremberg motorway junction and are part of the Franconian sand axis . Both bodies of water are fed by the groundwater of the Röthenbach , which, separated by a sand dune, flows past in the northeast and flows into the Pegnitz in Röthenbach .
Emergence
In the 1970s, the area around the western part, the Kleiner Birkensee, was initially used for sand mining . A groundwater lake was formed through underwater excavation with excavators . After the work was completed, the sand layers were partially afforested, while the bank areas were left to their own devices.
The eastern part, the Great Birkensee, was used for sand mining until the 1980s and was expanded to almost double its size due to water ingress.
Originally, only a single, much larger lake was planned to encompass both of today's lakes and the area in between.
Great birch lake
The Great Birkensee has a depth of up to over 20 meters near the steeply rising east bank with its sand dune in front of it . The part facing the motorway is designated as a protected landscape component and slopes gently.
The lake is approved for various leisure activities. In summer it is a popular swimming lake and is also used for nudism . The sand dune on the northeast bank, a meadow on the south bank and the bank on the hiking trail to the north (marking, red ring) serve as a bathing beach. On the weekends there is a managed mobile kiosk and a garbage container. Despite the presence of the water rescue service , fatal swimming accidents have occurred. In winter the lake is popular for ice skating, the sand dunes are used for tobogganing.
Browsing traces on trees (2015) indicate that beavers have settled.
A water analysis at the end of August 2015 revealed an increased concentration of possibly carcinogenic perfluorinated surfactants (PFT). Thereupon the responsible district office issued a temporary bathing ban and recommended to refrain from eating fish caught in the lake. Another analysis carried out in November 2015 showed that the mud on the lake floor is highly contaminated. After investigations were carried out in April 2016, in which u. a. The bathing ban was lifted in June 2016. There is still an official warning from the authorities, but there are no warning signs on the lake shore itself. The cause of the increased PFT concentration in the lake is unclear. The concentration does not violate limit values.
Little birch lake
The Kleiner Birkensee is a protected part of the landscape and swimming is not permitted. The bank is difficult to access and must not be entered. A habitat for numerous highly specialized animal and plant species has developed here. There are natterjack toads , species of locusts , ants , wild bees , silver grass , felt herbs and farm mustard . Biting marks on trees (March 2013) indicate that beavers have also settled here.
Access
There are no parking spaces in the immediate vicinity of the Birkensee. A large car park is located on the road connecting Leinburg to Schwaig . The lake is easily accessible by bike or on foot.
See also
Individual evidence
- ↑ bayern.de/bayernatlas: Location of the Birkensee
- ↑ Bundnaturschutz, no sand mining at Birkensee (accessed on March 11, 2013; PDF; 136 kB)
- ↑ nordbayern.de: June 28, 1970: Sandy beach soon on the doorstep
- ↑ Course of the hiking trail In: ra.OSMsurround.org.
- ↑ A bathing trip ends fatally for a 29-year-old man. ( Memento from December 17, 2013 in the Internet Archive )
- ↑ The search for traces at Birkensee continues. In: N-LAND.de. April 8, 2016, archived from the original on November 19, 2018 ; accessed on June 22, 2016 .
- ↑ Tanja Oppelt: Just in time for the season: bathing ban at Birkensee lifted. (No longer available online.) In: BR.de. Bayerischer Rundfunk, May 20, 2016, archived from the original on June 26, 2016 ; accessed on June 22, 2016 .
- ↑ nordbayern.de: Bathing fun with residual risk: Still poison in the Birkensee? , from May 2, 2018, loaded on July 24, 2019
- ↑ Pollutants from Birkensee also pollute Reichswald. In: nordbayern.de , October 1, 2016
- ↑ Ordinance on the protected landscape component of the small birch lake ( memento from January 26, 2016 in the Internet Archive ) (accessed on January 26, 2016)
Web links
- Info page Birkensee (accessed January 24, 2013)