Study sites

Lowland - Treene

Lowland river Treene
River Treene (click to enlarge)

The Treene is a lowland, sand and gravel dominated river in the northernmost federal state of Germany, Schleswig-Holstein and is the largest tributary of the river Eider. Discharge averages 3 m3 s-1 for a catchment area of about 480 km2 with ground elevations from 2 to 80 m ASL. As 80 % of the catchment is agriculturally used, most of the wetlands are drained and the channels are anthropogenically modified. Near-natural conditions and meandering sections are occurring occasionally.

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Low-mountaineous region - Kinzig

Low-mountaineous region river Kinzig
River Kinzig (click to enlarge)

The Kinzig is a submountaineous stream located in the Federal State of Hesse and drains into the river Main, east of Frankfurt a.M. The catchment lies in the central low-mountain range of Germany with ground elevations from 98 to 627 m ASL. Mean discharge is 10 m3 s-1 for a catchment area of about 1060 km2. Nearly half of the catchment area is covered by forest while 30 % of it is agriculturally used. Although the water system is partially modified due to agricultural or urban needs, many highly dynamic and near-natural sections can be found as well. The Kinzig dam is located in the upper third of the catchment and has, amongst others, regional importance for flood control.

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Alpine region - Ammer

Alpine region river Ammer
River Ammer (click to enlarge)

The river Ammer belongs to the Northern Limestone Alps in the Federal State of Bavaria (South Germany). Its upper section can be characterized as a torrent with steep gradients, dominated by gravel and stone substrates. Mean discharge is 16 m3 s-1 for a catchment area of about 710 km2 with ground elevations from 533 to 2185 m ASL. Half of the catchment area is agriculturally used, mainly as grassland, and 45 % is covered by forest. About half of the flow path is considerably to strongly modified, while almost 50% remain in a near natural state.

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