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ENWAMA meeting in Budapest 27.-30. 9. 2009 Corvinus University.

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Presentation on theme: "ENWAMA meeting in Budapest 27.-30. 9. 2009 Corvinus University."— Presentation transcript:

1 ENWAMA meeting in Budapest 27.-30. 9. 2009 Corvinus University

2 Černý potok stream, June 2009

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8 http://www.ustinadlabem.ochranaprirody.cz/index.php?cmd=page&id=5075

9 August 2009, web AOPK ÚL (Agency for Nature Conservation and Landscape Protection of the CR)

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11 River Cai, Nha Tranh, Vietnam, eroded bank

12 River Cai, Nha Tranh, Vietnam, sediments deposits in the other bank

13 We have to hold water in the catchment area Pools Wetlands (www.etf.cuni.cz) (www.hostivice.cz)

14 Blind stream branches Planting of vegetation (www.elateridae.com) (www.dotace.natura.cz)

15 Skerne  River length: 40 km  Basin area: 250 km 2  1995 – 1998 rehabilitation of 2 km river

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17 Obnova peřejí

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21 Two 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

22 Advantages Finance Finance Better ecosystem Better ecosystem Better in low runoffs Better in low runoffs Flood protection Flood protection Good in sedimentation transport Good in sedimentation transport Farming basins with small slope Farming basins with small slope Farming land from both sides Farming land from both sides

23 Chabařovice lake – juvenile fish catching with net

24 Eutrophication lake – small fish catching

25 Upper small lake above Chabařovice lake

26 Chabařovice lake

27 Eutrophication small lake above Chabařovice lake

28 „Most“ artificial lake – flooding of closed lignite mine

29 Lake near town Most

30 Small lake above lake Most – juvenile fish catching place

31 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

32 References Manual of River Restoration Techniques, 2002, River Restoration Centre, Silsoe, UK, http://www.therrc.co.uk/rrc_manual_pdf.php

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