| Autor: |
HRADECKÝ, JAN, GALIA, TOMÁŠ, KREJČÍ, LUKÁŠ, ŠKARPICH, VÁCLAV, VAVERKA, LUKÁŠ |
| Zdroj: |
Geografie; 2024, Vol. 129 Issue 3, p265-297, 33p |
| Abstrakt: |
This study examines the long-term impact of water management and navigation modifications on the hydromorphology of the lower Elbe River in Czechia. The research focuses on gravel-sand bars, which are remnants of the river's natural morphology. The analysis revealed a significant shift in the hydromorphological quality of the river, evaluated using a morphological quality index and historical data. The study analysed morphological and grain-size parameters of selected gravel-sand bars, as well as daily flow data. The results show a significant reduction in channel width and maximum average daily flows, leading to lower disturbance frequencies of the bars. The analysis suggests that close-to-natural processes affect the development of the bars but are influenced by artificial modifications. The findings indicate the need for restoration measures, which are discussed in this paper. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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