Revitalisation of the Borova stream, Czech Republic

General

National Id:

Czech_06

Site name:

Borova Stream, south-western part of the "Blanskí Les" Protected Landscape area, 5 km north-western from the Chvalšiny village

Summary:

Restoration of the length of the Borova stream, increased by 6.3 km a shallow meandering stream bed, where sections of speedily running water alternated with sections of a slow stream were created, financed by the Ministry of Environment of Czech Republic.

NUTS Code:

Jihozápad

RBD code:

CZ_1000

Transboundary:

Data provider:

Jovanka Ignjatovic

Source(s):

Case study:Borova Stream and its Revitalisation

Effect of meander restoration on macroinvertebratebiodiversity: the case of the Borová stream(Blanskí½ Les, Czech Republic)

NWRM(s) implemented in the case study:

Wetland restoration and management

Re-meandering

Riverbed material renaturalization

Forest riparian buffers

Longitude:

14.218

Latitude:

48.87638

Site information

Climate zone:

cool temperate moist

Mean rainfall:

2062

Mean rainfall unit:

mm/year

Average temperature:

8,60000038146973

Average runoff coefficient:

0,170000001788139

Type:

Case Study Info

Light or indepth?:

Light

Average slope range:

1-2%

Monitoring maintenance

Monitoring impacts effects:

Monitoring parameters:

Comparison of composition of macro-invertebrate samples focusing on species richness, species composition, and representation of rare Ephemeroptera and Plecoptera species

Performance

Performance impact estimation method:

Catchment outlet

Performance impact estimation information:

Benthic macroinvertebrates were sampled using the semiquantitative kick and sweep technique and by hand-picking of specimens from stones and macrophytes.

Biophysical impacts

Information on retained water:

The stream provide enogh flood storage during the flooding time

Information on increased water storage:

Creation of lentic sites, increasing the ammount of water retained per timestep

Information on runoff reduction:

N/A info

Water quality overall improvements:

Not relevant for this application

Information on Water quality overall improvements:

Not relevant for this application

Soil quality overall soil improvements:

Not relevant for this application

Information on Soil quality overall soil improvements:

Not relevant for this application

Lessons, risks, implications...

Key lessons:

Morphologically degraded stream sections are typically characterized by low habitat heterogeneity and consequently lower biodiversity compared to more natural sections. These measures certainly increase morphological heterogeneity and mimic the pre-disturbance state. On the other hand, the intervention included substantial disturbance and the use of heavy technique which have seriously affected the biota.

Success factor(s):

Type	Role	Comments
Financing possibilities	main factor	Thanks to the ministry of environment

Financing:

Type	Comments
National funds	Ministry of Environment

Barrier:

Type	Role	Comments
Missing regulatory support	main barrier	A short section(100 m) was restored in a traditional way, i.e., by the establishing of transverse sills, because the necessary agreement of the land owner was not secured.

Driver:

Type	Role	Comments
Organisation committed to it	main driver	As part of the Blanskí Les Protected Landscape Area
Availability of subsidies	secondary driver
Past flooding events	main driver

Financing share:

Share type	Share	Comments
National funds	100

Socio-economic

Direct benefits information:

Stream increased by 6.3 km alternated with sections of slow stream

Ancillary benefits information:

N/A info

Costs investment information:

N/A info

Costs operation maintenance:

N/A info

Costs total:

2954016

Ecosystem improved biodiversity:

Information on Ecosystem improved biodiversity:

Results show that the macroinvertebrate assemblage of the restored section of a small stream contained higher species richness in comparison to channelized conditions that preceded the restoration, especially prominent shortly after the restoration intervention. However, the restoration did not increase abundances of rare Ephemeroptera and Plecoptera species.

Information on Ecosystem provisioning services:

Not relevant for this application

Ecosystem impact climate regulation:

Not relevant for the specific application

Information on Ecosystem impact climate regulation:

Not relevant for this application

Policy, general governance and design targets

Policy description:

Large scale regulation of water regime in the landscape was carried out by the consequences of industrial, agricultural, and urban development during the last century.

Part of wider plan:

Policy pressure:

Policy requirement directive:

Policy impact:

Policy wider plan:

Wider plan type	Wider plan focus	Name	Comments
		Program for revitalization of river systems

Policy area:

Policy target:

Target purpose
Increase Water Storage
Improved Biodiversity

Design & implementations

Application scale:

River

Installation date:

2001-01

Lifespan:

Age:

Performance timescale:

1 - 4 years

Area (ha):

450

Area subject to Land use change or Management/Practice change (ha):

450

Size:

3307

Size unit:

Design capacity description:

Increased the total length of the stream 6.3 km

Constraints:

The drainage tubing at the surrounding pastures had to remain undisturbed except for the spring area where a small wetland was established.

Favourable preconditions:

It was a former meanders channel which was straightened in the 70s

Design contractual arrangement:

Design consultation activity:

Design land use change:

Design authority:

Authority type	Role	Responsibility	Name	Comments
Local water authority	Implementation		Blanskí½ les Protected Landscape Area Authority
National water authority	Financing		Ministry of Environment

Last updated: 12 Jan 2015 | Top

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Revitalisation of the Borova stream, Czech Republic

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