Opens an external page Link to the homepage

Bundesamt für Naturschutz

Hamme lowlands (Hammeniederung)

Areas and habitats
Waters and floodplains
Large-Scale Conservation Projects
Wet grassland with residual raised bog
Federal state
Lower Saxony
Division II 2.1 Biotope Protection and Management; Protected Areas
1995 - 2009
Core area 2.715 ha
Lower Saxony
Grant amount
16.230.000 €

Project description

The project area consists of wet lowlands with many watercourses, oxbows, bog lakes and numerous interlinking dikes and channels, as well as small-scale occurrence of raised bog vegetation. The area defined by the demarcated section of river encompasses almost the entire floodplain of the Hamme river and falls within two Special Protection Areas (SPAs) under the EU Birds Directive (Natura 2000 sites: "Untere Hammeniederung" and "Hammeniederung mit 'Breites Wasser'"). 

Among the species of particular conservation value, the most important are the avifauna such as Montagu's harrier (Circus pygargus), the corncrake (Crex crex), common snipe (Gallinago gallinago), blacktailed godwit (Limosa limosa), the sedge warbler (Acrocephalus schoenobaenus), the garganey (Anas querquedula) and the short-eared owl (Asio flammeus) as well as certain dragonfly species threatened with extinction (Aeschna viridis, Aeshna subarctica elisabethae and the small red damselfly Ceriagrion tenellum).

Threats are caused by changes in the water regime and increasingly intensive agricultural land use. The main objective of the project is hence to safeguard and further develop the area as a large-scale open lowland characterized by extensive grassland. To achieve this objective, the main strategy envisaged is the purchase of land on a large scale. A key focus of the project is on cooperation with the water management sector in order to enable more widespread and longer-lasting flooding in the area. Furthermore, habitat management measures will take the form of removing riverbank reinforcements, restoring oxbow lakes and implementing a visitor management concept.

Project executing agencies

Landkreis Osterholz
Osterholzer Straße 23, 27711 Osterholz-Scharmbeck

Project funding agencies

Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU), Land (state) of Lower Saxony and Landkreis (district) of Osterholz
To the top