The Eider-Treene Depression (german: Eider-Treene-Niederung; da, Ejder-Trene-Sænkningen) is a landscape in west

Schleswig-Holstein Schleswig-Holstein (; da, Slesvig-Holsten; nds, Sleswig-Holsteen; frr, Slaswik-Holstiinj) is the northernmost of the 16 states of Germany, comprising most of the historical duchy of Holstein and the southern part of the former Duchy of Sc ...

in North Germany. It covers around the rivers Eider, Treene and

Sorge Sorge may refer to: Places * Sorge, Saxony-Anhalt, Germany, a village and former municipality * Sorge (Eider) in Schleswig-Holstein, Germany, a tributary of the Eider River * Sorge (Lake Geneva) in Lausanne, a tributary of Lake Geneva * Germ ...

. The Eider-Treene Depression is the largest

wetland A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The ...

in the German state of Schleswig-Holstein. It includes one third of the moorland (bog) in the state and is a habitat to the largest inland group of meadow birds. To the north, its border runs between Hollingstedt and

Treia Treia is a town and ''comune'' in the province of Macerata in the central Marche (Italy). It is north of Pollenza, west of Macerata, and north-northeast of Tolentino. Geography The site of the abandoned Roman municipium of Trea is situated ...

, to the east near Rendsburg, to the south the boggy depression reaches to the Hanerau and Haalerau beyond the

Kiel Canal The Kiel Canal (german: Nord-Ostsee-Kanal, literally "North- oEast alticSea canal", formerly known as the ) is a long freshwater canal in the Germany, German states of Germany, state of Schleswig-Holstein. The canal was finished in 1895, ...

. Its western boundary with the Eiderstedt Marsh is unclear as

marsh A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found a ...

bog A bog or bogland is a wetland that accumulates peat as a deposit of dead plant materials often mosses, typically sphagnum moss. It is one of the four main types of wetlands. Other names for bogs include mire, mosses, quagmire, and muskeg; a ...

and geest are interspersed. The region comprises the river valleys and their interfluvial geest ridges (''Geestkernen''). The landscape was formed during the ice ages, and altered by man as a result of dams and weirs built across the Eider, which was still a tidal river as far as Rendsburg until the 1920s. The region recently is encouraging "nature tourism" with walking, riding, cycling and canoe trips.

Sources

* Martin Becker, Gert Kaster: Kulturlandschaft Eider-Treene-Sorge. Wachholtz Verlag, Neumünster 2005

External links

* Eider-Treene Depression at the Schleswig-Holstein ecological travel guide Natural regions of Germany Regions of Schleswig-Holstein Dithmarschen Wetlands of Germany Bogs of Schleswig-Holstein BEiderTreene Eider (river) {{SchleswigHolstein-geo-stub