Laagensee
| Laagensee | ||
|---|---|---|
| Geographical location | Brandenburg , Germany | |
| Tributaries | nameless flow from the northeast, sources close to the lake | |
| Drain | Flow to Briesensee (episodic) | |
| Islands | no | |
| Places on the shore | no | |
| Location close to the shore | no | |
| Data | ||
| Coordinates | 53 ° 4 '28 " N , 13 ° 48' 35" E | |
|
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| Altitude above sea level | 61 m | |
| surface | 40.5 ha | |
| length | 960 m | |
| width | 820 m | |
| Maximum depth | 4.5 m | |
The Laagensee is a natural lake in the district of Steinhöfel , a district of the city of Angermünde in the Uckermark district (Brandenburg). It is a flowing lake with a small catchment area and only one episodic runoff.
location
The Laagensee is located approx. 700 m southwest (eastern Lanke) or approx. one kilometer west (northern part of the lake) of Neuhaus and 4.7 km southwest of the center of Steinhöfel. South of the Laagensee lies the Briesensee, east-southeast Warnitzsee and Schönebergsee, with the small Kiehnsee in between . Poratz is 1.1 km southwest of the southern end of the western Lanke.
The Laagensee lies entirely within the Steinhöfel district, or the former Neuhaus district (before merging with the Steinhöfel district). The lake is completely surrounded by forest. To the west of Neuhaus, the banks of the Laagensee can be reached via a dirt road.
Hydrography and Ecology
Ground moraines were deposited behind the Angermünder Eisrandlage of the last glacial period ( Vistula glacial period ), which give the landscape a domed morphology. Meltwater channels that had formed under the ice are sunk into these ground moraines. They are filled with fluvial sediments, but some of them are still preserved as morphological channels. The Laagensee lies within a meltwater channel. It belongs to the nature reserve Poratzer Moränenlandschaft.
The Laagensee is strongly structured by two angled foothills (Lanken) that diverge towards the south. The western edge is measured from the north end 960 meters long, the eastern edge about 920 m long. The maximum width is 820 meters. The southern ends of the two banks to the south are approx. one kilometer apart. The Laagensee has a tributary in the northeast, an arid river, which north of the lake can also form open water surfaces in front of the mouth of the lake when the groundwater is high. The runoff into the Briesensee is episodic.
The two foothills to the south (Lanken) enclose the almost 80 m high Laagenberg, which protrudes into the lake as a peninsula. There are no islands in today's lake. However, the original table sheet from 1826 shows an island in the western Lanke that no longer exists today. It is possible that the lake water level was lower then than it is today.
The Laagensee is a flowing lake with a small catchment area. The lake area is about 40.5 ha, according to other information only 39 ha. The lake is fed by an unnamed river from the northeast and smaller springs near the shore. It has an episodic runoff into the Briesensee. The piped outflow was set higher in the years after 2000, so that the lake level rose slightly and has been almost stable since then. The lake is up to 4.5 m deep, the lake level is about 61 m above sea level. NHN . The water body is not stratified. The lake is highly eutrophic. The water is greenish-brown in color and has only a small amount of lime.
The bottom of the lake of Laagensee shows only a small amount of vegetation. There are still some species that are well adapted to the eutrophic conditions. However, the occurrences are very dispersed. They grow to a depth of 3.0 m. Lively milfoil ( Myriophyllum verticillatum ) and spiky milfoil ( Myriophyllum spicatum ) as well as mirrored pondweed ( Potamogeton lucens ) and floating pondweed ( Potamogeton natans ). The silting zones made up of floating leaf plants, reed beds and silting bogs are particularly ecologically worthy of protection. Bitterling ( Rhodeus amarus ), European mud whip ( Misgurnus fossilis ) and crucian carp ( Carassius carassius ) are found in fish .
history
Two older names from 1744 and 1767/87 are Lange See . The next most recent documents from 1826 and 1885, on the other hand, are Lagen See and Laagen-See. It is now not entirely clear which naming documents are required. According to Wauer, the field name Laagenberg near the lake rather suggests that the former documents are prescribed. Then the interpretation is difficult. Wauer gives an aplb. Basic form * Lav'n- to ancient Slavic * lava bank as a possible interpretation. The meaning of the original form * lava changed many times, to about p. Elongated shoals, sandbars or fields or meadows in the middle of a forest in a ravine.
On April 26, 1945, a smaller battle took place in the isthmus between Laagensee and Briesensee between retreating soldiers of the Wehrmacht and soldiers of the Red Army, who had already occupied the isthmus between the two lakes. 30 German soldiers and an unknown number of Russian soldiers died in the brief night battle. In 1990 a memorial stone for the fallen German soldiers was erected.
Management
The Laagensee is managed. Carp, white fish and marble carp are used.
literature
- Olaf Mietz (project manager): The lakes in Brandenburg's young moraine region. Part 2, Water cadastre and applied water ecology eV, LUA, Public Relations Department, Potsdam 1996, DNB 948923989 .
Individual evidence
- ↑ Wierd Mathijs de Boer: Ice edge layers and runoff channels from the Vistula glaciation in the eastern Uckermark (Brandenburg / Mecklenburg-Western Pomerania). In: Gerd W. Lutze, Hans Domnick (Ed.): Streifzüge (I) - through the northeast of Brandenburg. Contributions to the landscape development and history of the Barnim and Uckermark. (= Discoveries along the Märkische Eiszeitstrasse. Issue 16). Society for Research and Promotion of the Märkische Eiszeitstraße eV, Eberswalde 2015, pp. 5–19, ISSN 0340-3718 .
- ↑ K. Kaiser, J. Libra, B. Merz, O. Bens, RF Hüttl (eds.): Current problems in the water balance of northeast Germany: trends, causes, solutions. (= Scientific Technical Report. 10/10). Deutsches GeoForschungsZentrum, Potsdam 2010. DOI: 10.2312 / GFZ.b103-10106 Sonja Germer, Knut Kaiser, Rüdiger Mauersb: Falling lake levels in northeast Germany: a multitude of special hydrological cases or groups of similar lake systems?
- ↑ Marco Nathkin: Model-based analysis of the influences of changes in forest management and the climate on the water balance of groundwater-dependent landscape elements . Dissertation. Mathematical and Natural Science Faculty of the University of Potsdam, 2010. (PDF) , p. 61.
- ↑ a b c d Natura 2000 management plan in the state of Brandenburg Management plan for the FFH area Poratzer Morain Landscape State internal no. 140, EU no. DE 2948-304. State Office for the Environment of Brandenburg, 2019 (PDF)
- ↑ Reinhard E. Fischer , Elzbieta Foster, Klaus Müller, Gerhard Schlimpert, Sophie Wauer, Cornelia Willich: Brandenburgisches Namenbuch. Part 10: The names of the waters of Brandenburg. Verlag Hermann Böhlaus Successor, Weimar 1996, ISBN 3-7400-1001-0 , p. 160.
- ↑ Jörg Berkner: Memorial stones Why it is important to keep memories alive. (= Greiffenberg Notes - News from Greiffenberg and the surrounding area. No. 09). (PDF)