Difference between revisions of "Carrión"

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:* Plantation  of 170 stakes (75 % ''Salix fragilis'' and 25% of ''Salix purpurea'' and ''Salix atrocinerea''), with the aim of protecting a plantation of poplars (adjust land use to prevent shore erosion )
 
:* Plantation  of 170 stakes (75 % ''Salix fragilis'' and 25% of ''Salix purpurea'' and ''Salix atrocinerea''), with the aim of protecting a plantation of poplars (adjust land use to prevent shore erosion )
 
:* Construction of a wing deflector consisting of stones, logs, and branch cuttings of willow and aquatic plants for its stabilization.
 
:* Construction of a wing deflector consisting of stones, logs, and branch cuttings of willow and aquatic plants for its stabilization.
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:* Plantation of branch cuttings and stakes of willow at stable margins to give shading and shelter for the trouts.
  
 
==Success criteria==
 
==Success criteria==

Revision as of 16:23, 20 May 2010

Carrión


Factsheet: Carrión

General
Country ES
River Name Carrión
Site Name Carrión
River Characterisation
    River typology
    Location (Lat Lon) 42.6591485874252, -4.8255729675293
    Altitude high: > 800 m
    Catchment area large: > 1000 - 10000 km2
    Geology Calcareous
    National code/
    River type name
    15 ejes mediterráneo-continentales poco mineralizados
    Hydromorphological quality elements

    Biological quality elements
    Ecosystem Services
    EU Directives
    Pressures
    Measures
    Other
    Project size -1
    Approximate costs
    Synergy
    Status Realised
    Period of realization 1996 - 1999
    Evaluation Hydromorphological and ecological changes
    Implemented by Junta de Castilla y León. AEMS, Ríos con Vida


    Key features of the case study

    Attention: the source of the following text is "Estudio de técnicas de restauración ecológica aplicada a los principales habitat(MARM, 2010).

    The Carrión river restoration located in Fresno del Río and Pino del Río (Palencia) covered a river reach with maximum flows between 218 and 527 m3/s, which is regulated by Camporredondo and Compuerto dams. The minimum flows is about 2 m3/s, set by the Confederación Hidrográfica del Duero. The concern about this reach was due to shore erosion and the lack of refuge for trout.

    Site description

    Measures selection

    In order to mitigate the impact of flow regulation and to improve the aquatic habitat for fish, several actions took place both instream and at the riparian zone:

    • Boulders (limestone) were placed in the riverbed for improve the instream structure and habitat diversity. The diameter of the boulders ranged between 60 - 80 cm.
    • Revegetation of the margins with four live fences: 200 stakes of willows from the proximities of the site and four stakes of aspen (Populus tremula). Aspen stakes were around 2 m long and with a diameter of 2 cm (two years). They were embedded vertically into the soil with a slight inclination towards the slope, very close, filling the trench with the extracted material and compacting over the stakes.
    • Revegetation with single stakes. Because of lack of time, they were left along the banks hardly embedded, just covered with slope material. They didn´t develop an important root system as they were near to the water table.
    • Plantation of 170 stakes (75 % Salix fragilis and 25% of Salix purpurea and Salix atrocinerea), with the aim of protecting a plantation of poplars (adjust land use to prevent shore erosion )
    • Construction of a wing deflector consisting of stones, logs, and branch cuttings of willow and aquatic plants for its stabilization.
    • Plantation of branch cuttings and stakes of willow at stable margins to give shading and shelter for the trouts.

    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

    References


    Related Measures

    Related Pressures