ENWAMA meeting in Budapest 27.-30. 9. 2009 Corvinus University
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Transcript of ENWAMA meeting in Budapest 27.-30. 9. 2009 Corvinus University
ENWAMA meeting in Budapest 27.-30. 9. 2009Corvinus University
Černý potok stream, June Černý potok stream, June 20092009
http://www.ustinadlabem.ochranaprirody.cz/index.php?http://www.ustinadlabem.ochranaprirody.cz/index.php?cmd=page&id=5075cmd=page&id=5075
August 2009, web AOPK ÚL (Agency for August 2009, web AOPK ÚL (Agency for Nature Conservation and Landscape Nature Conservation and Landscape
Protection of the CR)Protection of the CR)
River Cai, Nha Tranh, River Cai, Nha Tranh, Vietnam, eroded bankVietnam, eroded bank
River Cai, Nha Tranh, River Cai, Nha Tranh, Vietnam, sediments Vietnam, sediments
deposits in the other bankdeposits in the other bank
We have to hold water in We have to hold water in the catchment areathe catchment area
PoolsPools
WetlandsWetlands(www.etf.cuni.cz)
(www.hostivice.cz)
Blind stream Blind stream branchesbranches
Planting of vegetationPlanting of vegetation
(www.elateridae.com)(www.dotace.natura.cz)
SkerneSkerne
River length: 40 kmRiver length: 40 km
Basin area: 250 kmBasin area: 250 km22
1995 – 1998 1995 – 1998
rehabilitation of 2 km rehabilitation of 2 km
riverriver
Obnova peřejíObnova peřejí
Two stage channel designTwo stage channel design
Left trapezoidal channel, right rehabilitated two stage channel. Source: Promoting Naturalized Drainage Channel Design, Ohio, USA, 2003
Two stage channel design, Part 654 Stream Restoration Design, National Engineering Handbook, US department of Agriculture, Natural Resources Conservation Service, Chapetr 10, 2007
Advantages Advantages
FinanceFinance Better ecosystemBetter ecosystem Better in low runoffsBetter in low runoffs Flood protectionFlood protection Good in sedimentation Good in sedimentation
transporttransport Farming basins with small Farming basins with small
slopeslope Farming land from both Farming land from both
sidessides
Chabařovice lake – juvenile fish Chabařovice lake – juvenile fish catching with netcatching with net
Eutrophication lake – small Eutrophication lake – small fish catchingfish catching
Upper small lake above Upper small lake above Chabařovice lakeChabařovice lake
Chabařovice lakeChabařovice lake
Eutrophication small lake above Eutrophication small lake above Chabařovice lakeChabařovice lake
„„MostMost““ artificial lake – artificial lake – flooding of closed lignite flooding of closed lignite
minemine
Lake near town MostLake near town Most
Small lake above lake Most Small lake above lake Most – juvenile fish catching – juvenile fish catching
placeplace
Experiments Experiments
Juvenile fish catching with small net – successfull
Plankton samples taking – successfull (depends on level of flooding and place of taking sample)
Cooperation with Academy of Science – Hydrobiological Institute in České Budějovice town
References References
Manual of River Restoration TechniquesManual of River Restoration Techniques, 2002,, 2002,
River Restoration Centre, Silsoe, UK,River Restoration Centre, Silsoe, UK,
<<http://www.therrc.co.uk/rrc_manual_pdf.php>>