Case study:Boosting slivso

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Location: 55° 10' 0", 9° 29' 0"
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Project overview

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Status Complete
Project web site
Themes Land use management - agriculture, Habitat and biodiversity, Monitoring, Water quality
Country Denmark
Main contact forename
Main contact surname
Main contact user ID
Contact organisation Forest and Nature Agency
Contact organisation web site
Partner organisations
This is a parent project
encompassing the following
projects
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Catchment and subcatchment

Catchment

River basin district Sonderjyllands Amt
River basin

Subcatchment

River name Slivso
Area category 10 - 100 km²
Area (km2) 52 km²
5,200 ha
Maximum altitude category Less than 100 m
Maximum altitude (m) 0 m
0 km
0 cm
Dominant geology Siliceous
Ecoregion Central Plains
Dominant land cover Extensive agriculture, Intensive agriculture
Waterbody ID



Site

Name Slivso
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology
Reference morphology
Desired post project morphology
Heavily modified water body true
National/international site designation
Local/regional site designations
Protected species present
Invasive species present
Species of interest
Dominant hydrology Quick run-off, Groundwater
Dominant substrate Sand, Gravel
River corridor land use Extensive agriculture, Intensive agriculture
Average bankfull channel width category
Average bankfull channel width (m)
Average bankfull channel depth category
Average bankfull channel depth (m)
Mean discharge category
Mean annual discharge (m3/s)
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)


Project background

Reach length directly affected (m)
Project started 1999/01/01
Works started 2002/11/01
Works completed 2004/03/01
Project completed
Total cost category more than 10000 k€
Total cost (k€)
Benefit to cost ratio
Funding sources Forest and Nature Agency

Cost for project phases

Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname
Investigation and design 1000 - 5000 k€ 1 k€
1,000 €
Stakeholder engagement and communication
Works and works supervision 5000 - 10000 k€ 18 k€
18,000 €
Post-project management and maintenance
Monitoring



Reasons for river restoration

Mitigation of a pressure Physical alteration of the system
Hydromorphology Width & depth variation, Continuity of sediment transport
Biology Invertebrates, Macrophytes, Fish: Species composition, Fish: Abundance
Physico-chemical Nutrient concentrations
Other reasons for the project Nature development


Measures

Structural measures
Bank/bed modifications Creation of dike, Introduction of gravel
Floodplain / River corridor Creation of wetland, Creation and flooding of lake
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)
Other


Monitoring

Hydromorphological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Biological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative
Invertebrates Yes Yes Yes Yes Improvement
Macrophytes Yes Yes Yes Yes Improvement
Fish: Species composition Yes Yes Yes Improvement
Fish: Abundance Yes Yes Improvement

Physico-chemical quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative
Nutrient concentrations Yes Yes Improvement

Any other monitoring, e.g. social, economic

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative


Monitoring documents



Additional documents and videos


Additional links and references

Link Description

Supplementary Information

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