Lanker See
| Lanker See | ||
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| The southern part of the Lanker See with a view to the southwest | ||
| Geographical location | District of Plön , Schleswig-Holstein | |
| Tributaries | Schwentine vom Fuhlensee and others | |
| Drain | Schwentine towards Kirchsee | |
| Location close to the shore | Preetz | |
| Data | ||
| Coordinates | 54 ° 12 '28 " N , 10 ° 17' 33" E | |
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| Altitude above sea level | 19 m | |
| surface | 326.6 ha | |
| Maximum depth | 21 m | |
| Middle deep | 3.7 m | |
The Lanker See is located in Holstein Switzerland south of Preetz in the Plön district . The Schwentine flows through it from south to north .
This lake is particularly distinguished by its wealth of bays. Almost the entire western area from the lakeshore to the railway tracks on the Preetz-Ascheberg route is designated as a nature reserve " Peninsulas and bays in Lanker See ".
The Lanker See is 323.6 hectares in size, up to 21 m deep and is about 19 m above sea level. NN . It is divided into a larger north and a smaller south part, which are connected by a flow little more than 1 m deep. Without islands, the length of its shoreline is 17 km. The Lanker See is located in the municipalities of Preetz, Kühren , Wahlstorf and Schellhorn .
The name Lanker See is derived from a village called Lanke, which is said to have existed between Wahlstorf and Trent. This place name in turn refers to the lake, cf. Lanke (toponym) .
description
On the west side of the lake, the rather flat landscape is divided into four large peninsulas and bays, which have been part of a nature reserve since 1995. A first nature reserve was created on the largest of these peninsulas and the bay to the south of it in 1938, the reason for this at the time was, among other things, to protect a local occurrence of the gelatinous bush located far to the east . Because it has long been withdrawn from human use, the quarry forest has developed like a primeval forest and has a high proportion of dead wood . In the south-west of the lake there is a lowland in which lies the Kührener Teich , also a nature reserve since 1995, beyond the railroad tracks .
On the opposite east side of the lake is an agriculturally used larger peninsula. The landscape to the east of the lake is characterized by a geomorphologically interesting terminal moraine series , in whose channels, in addition to parts of the Lanker See, there are also other lakes such as the Scharsee , Kolksee, Wielener See and the Schwentine Kronsee and Fuhlensee lakes . Between the Scharsee and the Freudenholmer Bay of the Lanker See, there is a former bay of the Lanker See in one of these channels, which was already closed off by a dam in 1877 and drained by a pumping station. The drainage systems are still there, but are no longer used, so that when the water level is high, the areas develop into a swampy area.
In the northern part of Freudenholm, the Lanker See reaches its greatest depth of around 21 m, the southern part is at most a little over 6 m deep. The mean depth is 3.8 m in the northern part and 3.2 m in the southern part.
Water level development
In 1915 the area of Lanker See and Kirchsee is given as 454.4 hectares, of which about 10 hectares are accounted for by Kirchsee. Compared to measurements from 1981 (see above), there is a difference of 120 ha. This loss of area is due to natural silting up and the anthropogenic lowering of the lake level, which was aimed for in the lakes in the Schwentine river basin at the end of the 19th century . Was the lake level in 1915 20.1 m above sea level. In 1981 only 19.3 m to 19.5 m above sea level were measured. The island Appelwarder was this Seespiegelabsenkung the peninsula . Since the end of the 80s, however , it has been made an island again through an artificial breakthrough.
The level of the Schwentine in Preetz, which corresponds well with the lake level of the Lanker See, fluctuated between 1954 and 1975 between the extreme values of 18.8 m and 19.9 m above sea level, but the lake level was mostly between 19.0 m and 19, 5 m above sea level.
Tributaries to the Lanker See
In addition to the Schwentine , which flows into the lake in the southern part at Gut Wahlstorf and leaves it in the north via the Kirchsee , the lake receives notable water donations from tributaries from the Kührener pond , the Wielener See , the Kolksee and the Scharsee . An arm of the Alte Schwentine , which mainly flows into the Postsee , also flows into the Lanker See near the Kührener Mühle .
Islands in the Lanker See
In Lanker See there are around 10 islands and island-like reeds. The lowering of the lake level has increased the number of islands rather than by turning islands into peninsulas because shoals are now above the surface of the water. In addition to Appelwarder, the latter also happened with the tip of the largest peninsula on the west side, which is still marked as an island in the land survey from 1877 .
Islands in the northern part of the Lanker See
- Probstenwerder ('Seagull Island'): With a surface area of several hectares, the Probstenwerder is the largest island in the lake and is colloquially known as the 'Seagull Island'. Black-headed gulls , common gulls , herring gulls , common terns and various species of ducks breed here .
- Appelwarder: Appelwarder is the second largest island and has only been an island again since the late 1980s. It is located at the tip of the northernmost peninsula on the west side of the lake and is part of the nature reserve. Many primroses grow here . The island is grazed with Galloway cattle .
- Kleiner Werder: east of the Probstenwerder
- Ratteninsel: This island overgrown with willow bushes is located south of the Probstenwerder and only emerged when the lake level fell.
Islands in the southern part of the Lanker See
- Sun Island: The Sun Island is the largest island in the southern part and the only one that was already shown in the land survey from 1877. It is forested and a private reserve.
- A small island in the northeast of the southern part
- Goose Island: A shoal in the west of the southern part that only rises above the lake level when the water level is low
Ornithological importance
After the Great Plön Lake, the Lankans lake is among the lakes , the second most important breeding waters of Schleswig-Holstein . On Lanker See the following species breed the Red List : Black-necked Grebe , bittern , shoveler , goldeneye , common snipe , marsh harrier , common tern , Beutelmeise , oriole . Gadgets and Tufted Ducks breed in large numbers . Other notable breeding birds are the Reed Warbler and the Great Reed Warbler . Not many birds are found at Lanker See during the moult because it has no large contiguous water surface to offer protection. According to the Ramsar Convention , the Lanker See is of national importance, especially for the dwarf hawk , gadfly , great crested grebe , shoveler and goosander .
On Lankans lake and surrounding waters since 1971 long-term investigations are ongoing at the cave brooding Goldeneye .
Fish fauna
The Lanker See is managed by the ASV Preetz fishing club. In addition to predatory fish such as pike , perch and pikeperch , there are also catfish . Mirror carp, common carp and tench find ideal living conditions in flatter lake regions, reed belts and water lily fields . White fish such as roach , rudd , bream and alande are found in large numbers throughout the lake.
See also
literature
- This text is essentially a summary of the booklet Lanker See / Kirchsee from the series Seeufer Schleswig-Holstein Lakes -Stand, Use, Endangerment, Protection- , published by the State Office for Nature Conservation and Landscape Management Schleswig-Holstein , Kiel 1990, ISBN 3-923339- 21-6 .
- Uwe Muuß, Marcus Petersen, Dietrich König: The inland waters of Schleswig-Holstein . 162 p., Numerous Fig., Wachholtz-Verlag Neumünster, 1973. ISBN 3529053023 .
Web links
- NABU Schleswig-Holstein about the NSG am Lanker See - with leaflet (.pdf)
- Water hiking map Schwentine section Plön-Preetz
- Nature Conservation Ordinance "Peninsulas and Bays in Lanker See"
- Environmental report of the state of Schleswig-Holstein on Lanker See
Individual evidence
- ↑ Teodolius Witkowski: Lanke as a relic word and as the name . In: Teodolius Witkowski (Hrsg.): Research on Slavic and German naming . Akademie-Verlag, Berlin 1971, p. 88–120, here p. 97 .
- ↑ www.schellente.net ( Memento of the original from December 18, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ BLINKER 7/2010, pp. 20-25
