Tajo. Improvement of ecological state of the Tajo and tributaries riverside affected by the spill of kaolin, at Poveda de la Sierra and Taravilla (Guadalajara)

From REFORM wiki
Revision as of 18:23, 14 April 2010 by Dgjalon (Talk | contribs)

Jump to: navigation, search

Tajo. Improvement of ecological state of the Tajo and tributaries riverside affected by the spill of kaolin, at Poveda de la Sierra and Taravilla (Guadalajara)


Factsheet: Tajo. Improvement of ecological state of the Tajo and tributaries riverside affected by the spill of kaolin, at Poveda de la Sierra and Taravilla (Guadalajara)

General
Country ES
River Name Tajo
Site Name Tajo. Improvement of ecological state of the Tajo and tributaries riverside affected by the spill of kaolin, at Poveda de la Sierra and Taravilla (Guadalajara)
River Characterisation
    River typology
    Location (Lat Lon) 40.665047122885, -2.02706336975098
    Altitude high: > 800 m
    Catchment area very large: > 10000 km2
    Geology Calcareous
    National code/
    River type name     		12 de montaña mediterránea calcárea

    Biological quality elements
    Ecosystem Services
    EU Directives
    Pressures
    Measures
    Other
    Project size 20 ha
    Approximate costs 100 000 - 1 000 000 Euros
    Synergy Alto Tajo Natural Park
    Status Realised
    Period of realization 2008
    Evaluation
    Implemented by Confederación Hidrológica del Tajo (Ministry of Environment)


    Key features of the case study

    • This project is part of the National strategy for River Restoration, an initiative of the Ministry of Environment, and implemented at the Tajo basin by the Confederación Hidrográfica del Tajo.
    • The zone of actuation is included in the CSI ES4240016, ZEPA ES0000092, Parque Natural del Alto Tajo y zona periférica de protección de la Microrreserva Prados Húmedos de Torremocha del Pinar.
    • The open air mining releases a great quantity of sediments which are incorporated into the Tajo river and its tributaries at the area between Peñalén, Poveda de la Sierra and Taravilla.Despite the construction of pools for collect the runoff and the sediment scours from the mining exploitations, some turbidity can be observed, and so deposition of fine sediments at the pools( The thickness of the sediment layer reaches 20 cm at the confluence of the Merdero stream with the Tajo). The result is the alteration of the water quality and tha availability of instream habitat.


    • The presence of a levee known as Salto de la Poveda makes impossible the movement upstream of the fishes, though its elimination wouldn´t be enough to enable the migration. The structure is cimented over a natural step at the longitudinal profile.
    High turbidity of the water, due to the input of suspended matter.
    Sedimentation at the pools.

    Site description

    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

    References


    Related Measures

    Related Pressures

    Retrieved from "https://reform.gisinternet.nl/index.php?title=Tajo._Improvement_of_ecological_state_of_the_Tajo_and_tributaries_riverside_affected_by_the_spill_of_kaolin,_at_Poveda_de_la_Sierra_and_Taravilla_(Guadalajara)&oldid=2812"