Original scientific paper
https://doi.org/10.21861/HGG.2016.78.01.01
Morphological State of Rivers in the Ilova River Catchment
Mladen Plantak
; Elektroprojekt, d.d., Department of Water Resources, Nature and Environmental Protection, Zagreb, Croatia
Ivan Čanjevac
orcid.org/0000-0002-1536-4128
; University of Zagreb, Faculty of Science, Department of Geography, Zagreb, Croatia
Iva Vidaković
; Elektroprojekt, d.d., Department of Water Resources, Nature and Environmental Protection, Zagreb, Croatia
Abstract
The Ilova River catchment in Central Croatia is under significant human impact as a result of extensive river training works, construction of canals and fish farms. The consequences of building these hydrotechnical structures and river training works on the hydromorphology of streams in the Ilova catchment have not been investigated to date. Following a historical overview of the significant water works, this paper depicts the results of an assessment of morphological features of streams in the Ilova catchment pursuant to the EU Water Framework Directive (WFD) requirements and Croatian Waters’ Methodology for monitoring and assessment of hydromorphological features.
A total length of 534 km of streams was analysed, which led to the delineation of 48 water bodies for which the morphological condition was evaluated. In the Ilova River catchment, 38.5% of the total watercourse length, respectively twenty-one water bodies, did not meet WFD objectives as they were classified as moderate, poor or bad with respect to morphological condition. The results showing that not only those water bodies within and around settlements but also remote water bodies have a failing morphological status is a matter of concern.
Keywords
hydromorphology; morphology; EU Water Framework Directive; water body; anthropogenic influence; Ilova River
Hrčak ID:
160207
URI
Publication date:
21.6.2016.
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