Stream valleys in the Arnsberger forest (LIFE project)

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Stream valleys in the Arnsberger forest (LIFE project)

Factsheet: Stream valleys in the Arnsberger forest (LIFE project)

Country DE
River Name Heve
Site Name Stream valleys in the Arnsberger forest (LIFE project)
River Characterisation
    River typology
    Location (Lat Lon) 51.450450034728, 8.17056655883789
    Altitude mid-altitude: 200 - 800 m
    Catchment area small: 10 - 100 km2
    Geology Siliceous
    National code/
    River type name
    Type 5
    Hydromorphological quality elements

    Biological quality elements
    Ecosystem Services
    EU Directives
    Project size 1300 ha
    Approximate costs 100 000 - 1 000 000 Euros
    Status In progress
    Period of realization 2009-2014
    Evaluation Hydromorphological and ecological changes
    Implemented by NGO: Arbeitsgemeinschaft Biologischer Umweltschutz, Teichstr. 19 59505 Bad Sassendorf - Lohne,

    Key features of the case study

    At first glance, the streams in the Arnsberger Wald look quite natural. However, they have been straightened in historical times and much of the floodplain is covered by non-natural spruce forest and natural alder and oak riparian forests are missing along many streams. The objective of the project is to re-connect meanders, to enhance instream habitat and natural channel dynamics e.g. by the placement of large wood, and to restore natural floodplains as well as hydrologic balance e.g. to restore moor forests.

    Bachgut.jpg Bachschlecht.jpg

    Photos from

    For more information see: (German website)

    Site description

    Map of project area from

    The main streams in the project area are the Heve, Große Schmalenau, Kleine Schmalenau and Hevensbrink, including the adjacent floodplain forests. These are small lower-mountain, gravel-bed streams (Type 5 according to the German stream typology).

    Measures selection

    Success criteria

    Ecological response

    Hydromorphological response

    Monitoring before and after implementation of the project

    Socio-economic aspects

    Contact person within the organization

    Extra background information


    Related Measures

    Related Pressures