Badsee (Isny)

Badsee or Haldensee
Geographical location	Ravensburg district , Baden-Württemberg , Germany
Tributaries	Rötelbach et al
Drain	Tobelbach → Lower Argen
Location close to the shore	Isny in the Allgäu
Data
Coordinates	47 ° 45 '2 "  N , 9 ° 59' 59"  E Coordinates: 47 ° 45 '2 "  N , 9 ° 59' 59"  E
Altitude above sea level	680  m above sea level NHN
surface	42.5 ha
length	1.2 km
width	450 m
volume	1,614,000 m³
Maximum depth	7.2 m
Middle deep	3.8 m
Catchment area	5.42 km²

The Badsee (also Haldensee ) is a 42.5  hectare lake in the area of ​​the city of Isny im Allgäu and the municipality of Argenbühl in the Baden-Württemberg district of Ravensburg . From the northwest shore of his silting range finds date from the early Mesolithic period (Mesolithic).

location

The lake is at an altitude of 680  m above sea level. NHN , around seven kilometers northwest of Isny, between the towns of Allmisried in the north and east, Beuren in the south and Enkenhofen in the south-west. It was formed at the end of the last ice age around 16,000 years ago.

Hydrology

The Badsee has a catchment area of ​​around 542 ha. With a size of 42.5 ha (approx. 1,200 m × 450 m) and an average depth of 3.8 meters (max. Depth = 7.2 m), the lake volume is 1,614 .000 cubic meters.

It is fed, among other things, by the Rötelbach , which flows into the east and leaves the lake as Tobelbach (also called Badseebach) over the Untere Argen to Lake Constance in the Rhine . Since the Badsee lies on the European main watershed , the Taufach-Fetzachmoos bordering it is drained to the Danube .

ecology

Plant nutrients and other trophy indicators (annual averages)

year	1987	1996	2004
Total PO 4 - phosphorus (µg / l)	117	85	96
Chlorophyll a (µg / l)	18th	39	35
Chlorophyll a - peak (µg / l)	40	92	85
Total inorganic nitrogen (mg / l)	0.45	0.27	0.36
Viewing depth (m)	0.6	1.0	1.3

With the help of the action program for the rehabilitation of Upper Swabian lakes , various extensification measures have been carried out since the 1990s .

Protected areas

The south-western area of ​​the lake is part of the Badsee nature reserve ; surrounded the entire lake from the conservation area Badsee .

→ Main article : Badsee (nature reserve)

→ Main article : Badsee (landscape protection area)

Others

The town of Isny ​​operates a natural swimming pool at Badsee in summer and an approximately five-kilometer cross-country ski run around the lake in the winter months . There is a campsite on the north bank in the Allmisried district.

Web links

• Action program for the rehabilitation of Upper Swabian lakes

literature

• Hans Reinerth: The oldest settlement in the Allgäu. Prehistoric times on Lake Constance . Announcements on the prehistory and early history and local history of the Lake Constance area 1- 4, 1956, 1-37

Individual evidence

1. ↑ Detailed information on Badsee, PDF file, 67 kB