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doctoral thesis
Hidromorfološke promjene i procjena osjetljivosti rijeke Orljave
Zagreb: University of Zagreb, Faculty of Science, 2025. urn:nbn:hr:217:081460
Pavlek, Katarina
University of Zagreb
Faculty of Science

Institutional repository: Repository of the Faculty of Science

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Pavlek, K. (2025). Hidromorfološke promjene i procjena osjetljivosti rijeke Orljave (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:081460

Pavlek, Katarina. "Hidromorfološke promjene i procjena osjetljivosti rijeke Orljave." Doctoral thesis, University of Zagreb, Faculty of Science, 2025. https://urn.nsk.hr/urn:nbn:hr:217:081460

Pavlek, Katarina. "Hidromorfološke promjene i procjena osjetljivosti rijeke Orljave." Doctoral thesis, University of Zagreb, Faculty of Science, 2025. https://urn.nsk.hr/urn:nbn:hr:217:081460

Pavlek, K. (2025). 'Hidromorfološke promjene i procjena osjetljivosti rijeke Orljave', Doctoral thesis, University of Zagreb, Faculty of Science, accessed 02 April 2025, https://urn.nsk.hr/urn:nbn:hr:217:081460

Pavlek K. Hidromorfološke promjene i procjena osjetljivosti rijeke Orljave [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Science; 2025 [cited 2025 April 02] Available at: https://urn.nsk.hr/urn:nbn:hr:217:081460

K. Pavlek, "Hidromorfološke promjene i procjena osjetljivosti rijeke Orljave", Doctoral thesis, University of Zagreb, Faculty of Science, Zagreb, 2025. Available at: https://urn.nsk.hr/urn:nbn:hr:217:081460

Metadata
TitleHidromorfološke promjene i procjena osjetljivosti rijeke Orljave
Title (english)Hydromorphological changes and sensitivity assessment of the Orljava River
AuthorKatarina Pavlek
MentorIvan Čanjevac (mentor)
Committee memberDanijel Orešić (predsjednik povjerenstva)
Committee memberNeven Bočić (član povjerenstva)
Committee memberMateo Gašparović (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
Zagreb
Defense date and country2025-01-14, Croatia
Scientific / art field,
discipline and subdiscipline		INTERDISCIPLINARY AREAS OF KNOWLEDGE
Geography
Universal decimal classification
(UDC)		913(497.5) - Geography of Croatia
Abstract
U ovome su radu istražena hidromorfološka obilježja i promjene rijeke Orljave od kraja 19. stoljeća na temelju kojih je procijenjena morfološka osjetljivost rijeke. Promjene u morfologiji korita poput vijugavosti, širine i bočnog kretanja analizirane su pomoću kartografskih izvora i podataka daljinskih istraživanja. Promjene korita na razini meandara istražene su dvogodišnjim monitoringom bespilotnom letjelicom i GNSS prijemnikom. Utvrđene značajne morfološke promjene rijeke uzrokovane su... More prvenstveno antropogenim utjecajima. Najznačajniji dugoročni utjecaj jest kanaliziranje i izravnavanje korita. Na području Požege, duljina toka je od kraja 19. stoljeća skraćena za više od 30 %. U posljednjih dvadesetak godina, uklanjanje priobalne vegetacije u sklopu mjera obrane od poplava dovelo je do značajnog povećanja bočnog kretanja korita, mjestimice i do četiri puta. Antropogeno presijecanje meandara dodatno destabilizira korito povećanjem nagiba i snage toka. Predlaže se upravljanje rijekom koje omogućuje što prirodnije funkcioniranje riječnog sustava, uključujući obnovu priobalne vegetacije, revitalizaciju naplavnih ravnica i očuvanje prirodne vijugavosti i slobodnog bočnog kretanja rijeke. Less
Abstract (english)
This study examines the hydromorphological characteristics and changes of the Orljava River since the late 19th century, assessing the river's morphological sensitivity. Morphometric parameters such as sinuosity, channel width, and lateral migration were analyzed using cartographic sources and remote sensing data. Meander morphology at selected locations was monitored over a two-year period using a drone and a high-precision GNSS receiver. Significant changes in the channel morphology... More have been primarily attributed to human impacts, with channelization and river straightening identified as the most impactful long-term changes. In the Požega urban area, the river's length has been reduced by more than 30% since the late 19th century. Over the past twenty years, the removal of riparian vegetation as part of flood defense measures has led to a significant increase in lateral channel migration—up to four times in some locations. Anthropogenic meander cutoffs further destabilize the channel by increasing slope and stream power. A more nature-based river management approach is recommended, including riparian vegetation restoration, floodplain revitalization, and preservation of natural channel sinuosity and migration. Less
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:081460
Promotion2025
Study programmeTitle: Doctoral University Study of Geography
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica iz područja prirodnih znanosti (doktor/doktorica iz područja prirodnih znanosti)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2025-03-20 12:30:36
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