Pool source

Example of a pond source: the Vulture Pool on the Seeberg near Gotha

A pond spring (or Limnokrene , funnel spring) is a type of spring in which the water outlet point (the mouth of the spring) is at the bottom of a trough (or depression or depression). The hollow fills with spring water, which creates a stagnant body of water (a spring pond , spring pond or even a spring lake ). When the water's edge overflows, a spring stream forms at the overflow.

Occurrence

Limnokrenen often occur in karst areas where the spring pool can reach great depths. Because of their often funnel-like or kettle-like shape, such water outlet points are also referred to as source pots . In Germany z. B. the karst springs of the rivers Blau ( Blautopf , Baden-Württemberg) and Rhume (Lower Saxony) well-known spring pots.

Properties of a Limnokrene

The spring water is mostly clear, low in nutrients and oxygen and always cool. In Central Europe, the temperature is between 6 and 10 degrees Celsius. Due to the temperature of the rising water, these springs often do not freeze over in winter, so that they represent food sources for water birds and other animals even in severe winters. Due to the very weak current, organic material such as leaves, dead wood and other fine organic material can be deposited in the source pond.

Examples

Germany

Seven springs (Eschelohe)

• Blue pot
• Source pond Kösching
• Lahn spring
• Rodenbacher Bruch
• Rhume spring
• Seven springs (Eschenlohe)

Austria

Blauer Quelle, a karst spring in the Lower Inn Valley

• Andritz origin
• Blue spring
• Schmida

See also

• Pressurized water lake

literature

• Leonie Jedicke, Eckhard Jedicke: color atlas landscapes and biotopes of Germany. Ulmer, Stuttgart 1992, ISBN 3-8001-3320-2 .

Web links

• The source pot on the Strümper Berg on meerbusch.de

Individual evidence

1. ↑ Technical terms on the subject of sources on lfu.bayern.de