Göttingen gravel lake

Göttingen gravel lake
Geographical location	Göttingen , South Lower Saxony
Tributaries	Leine → Flüthe (if required)
Drain	Flüthe → Leine (if necessary)
Places on the shore	Goettingen
	Data
Coordinates	51 ° 31 '4 " N , 9 ° 55' 15" E Coordinates: 51 ° 31 '4 " N , 9 ° 55' 15" E
surface	16.203 2 ha
length	749 m
width	330 m
scope	2.285 km
particularities	Quarry pond

The Göttinger Kiessee is a quarry pond in the south of Göttingen . It emerged from a gravel construction and today, together with its bank zones, serves as a local recreation area .

description

The water surface of the Kiessee is 15 hectares. The water inflow is led into the gravel lake from a side channel (Flüthe) of the Leine . A connection was built between the flood bed of the Flüthe , a byway of the Leine, and the Kiessee in 2003/04. This can be opened and closed when the line is too watery. In this case, part of it is channeled into the gravel lake. As a result, the water in the city center of Göttingen, in Bovenden and Nörten-Hardenberg no longer rises as high at peak times of winter floods .

The Kiessee is located on the southern outskirts of Göttingen on the Sandweg. There are two playgrounds for children, a rental of pedal boats and rowing boats, and a restaurant and café. In winter, when the water surface is frozen, there is the possibility of ice skating. The recreation area around the lake is used for walks, cycling, jogging, Nordic walking and fishing. The shoreline of the lake is about 2.46 km.

Water history

On September 19 and 20, 2004, a high density of blue-algae led to large fish deaths in the Kiessee. 80,000 to 90,000 fish were affected (including mainly bream , to a lesser extent perch , roach and young pikeperch ). The trigger for the strong increase in blue-green algae was "the strong eutrophication of the gravel lake by nitrogen , but also by phosphorus ". More nutrients came into the gravel lake via the water inflow from the Leine. The existing discharges of nutrient-contaminated surface water, the feeding of ducks and their droppings led to a further tightening (according to the report of the Society for Applied Biology and Geology mbH).