Haslacher Weiher
Haslacher Weiher | |
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Haslacher Weiher | |
Geographical location |
Germany Baden-Wuerttemberg district Ravensburg |
Tributaries | Schlupfenbach and Graben |
Drain | via Haslacher Bach to the Schussen |
Places on the shore | Haslach |
Location close to the shore | Aulendorf |
Data | |
Coordinates | 47 ° 57 '49.6 " N , 9 ° 40' 49.1" E |
Altitude above sea level | 561 m above sea level NHN |
surface | 2.2 ha |
volume | 46,000 m³ |
Maximum depth | 4.0 m |
Middle deep | 2.1 m |
Catchment area | 8.6 km² |
particularities |
The Haslacher Weiher is a still water body in the Baden-Württemberg town of Aulendorf in the Ravensburg district in Germany .
location
The 2.2 hectare large Haslacher Weiher , about three and a half kilometers northeast of the town center Aulendorfer the hamlet Haslach at an altitude of about 560 meters above sea level. NHN located, is one of the natural area of Upper Swabian hills . Today it is used by the “Aulendorf Fishing and Nature Conservation Association” as a fishing lake.
Hydrology
The Haslacher Weiher was probably created in the 15th century , and was first mentioned in 1426. Its catchment area extends to around 860 hectares. The lake basin is 2.2 hectares in size. With an average depth of 2.1 meters and a maximum depth of 4 meters, this results in a volume of around 46,000 cubic meters.
The pond is supplied via a ditch as well as the Schlupfenbach , the discharge via a regulating weir into the Haslacher Bach and the Schussen .
ecology
Since 2000, the cities Aulendorf and Bad Waldsee (only catchment area) with the Haslacher pond on action program for the rehabilitation of Upper Swabian lakes involved. An important goal of this program is to reduce nutrient inputs into streams, lakes and ponds and thereby improve and maintain the condition of the water bodies.
80 percent of the catchment area is used for forest and 15 percent for agriculture - 5 percent of which is grassland and 10 percent arable land.
year | 2000 | 2002 | 2009 | 2014 |
Total PO 4 - phosphorus (µg / l) | 27 | 35 | 59 | 40 |
Chlorophyll a (µg / l) | 9 | 12 | 12 | 13 |
Chlorophyll a peak (µg / l) | 18th | 30th | 20th | 31 |
total inorganic nitrogen a (mg / l) | 1.93 | 1.21 | 0.67 | |
Viewing depth (m) | 0.8 | 0.8 | 0.9 | 0.9 |
Flora and fauna
Plants observed in the area of the Haslacher Weiher
- Yellow pond rose ( Nuphar lutea ), a species of the water lily family
- White water lily ( Nymphaea alba ), popularly often referred to as water lily , also belongs to the water lily family
- Small duckweed ( Lemna minor L. ), a species from the arum family
and animals
- Coot ( Fulica atra ), a species of the railing family
- Reed bunting ( Emberiza schoeniclus ), also known as reed sparrow , is a species of bird in the family of bunting
- Reed Warbler ( Acrocephalus scirpaceus ), a species of songbird in the warbler family
Nature reserve
The Haslacher Weiher is surrounded by the " Haslacher Weiher " nature reserve named after it . It is an important element in the network of Upper Swabian wetlands, historical evidence of diverse forms of pond use and habitat, as well as a retreat for a species-rich flora and fauna.
Web links
- The Haslacher Weiher in the action program for the rehabilitation of Upper Swabian lakes
- Water profile at www.anglermap.de
Individual evidence
- ↑ Profile of the nature reserve "Haslacher Weiher"