Fluvial dynamics and selected methods ot ecohydrological monitoring of restored Sviňovický brook channel
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http://hdl.handle.net/20.500.11956/161817Identifiers
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Issue Date
2010Keywords (Czech)
geologieKeywords (English)
hydromorfologie, fluvial dynamics, channel development, restoration, ecohydromorphological monitoringThis paper concentrates on monitoring and the evaluation of the restored Sviňovický brook channel. Main attention is paid to fluvial dynamics of the new channel. Repeated measurement of the cross-section and longitudinal profiles of the channel in connection with the rainfall and runoff events which have occurred can be considered as the basic method. In addition experimental photogrammetric methods have been applied using aerial images of the area taken from low-flying model planes. So far the largest changes to the revitalized channel occurred during the floods in July 2006. The flood caused changes in depth reaching more than 30 cm and in width reaching up to 1 meter, thus creating new conditions for further development of the channel. Changes in the course of the monitored channel in the historical period between 1843 and 2005 have been studied separately based on an analysis of the maps and aerial images. In connection with this research, selected methods of ecohydrological monitoring have been applied: surface water quality monitoring based on the hydrochemical parameters and also assessment of hydromorphological structures of the river habitat quality