Informace o publikaci
Pohyb a bilance říčního dřeva ve vodních tocích
| Autoři | |
|---|---|
| Rok publikování | 2018 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Životné prostredie : revue pre teóriu a tvorbu životného prostredia |
| Fakulta / Pracoviště MU | |
| Citace | |
| Klíčová slova | river; lotic ecosystem; large wood; wood budgeting; wood transport |
| Popis | Large wood in stream and rivers has become appreciated functional component of lotic ecosystems since pioneering studies from Pacific Northwest of USA in 1970s. Large wood plays diverse roles in affecting channel hydraulics, hydrology, sediment transport, geomorphology, habitat availability and structure and abundance of aquatic fauna and flora. Apart from positive ecological effects large wood was also recognized as an element contributing to flood hazard, river navigation problems and adverse effects on hydraulic structures like culverts, weirs or dams. Presented paper focuses on dynamics of wood in rivers with emphasis placed on wood transport and budgets. Three case studies from the Dyje, Morava and Lužnice rivers are presented illustrating processes of wood recruitment from riparian vegetation, conditions and distances of large wood transport, and annual wood budgets. Transport (mobility) and deposition of wood in river channels is a complex process governed by channel geomorphology, hydrological regimen, large wood properties, character and distribution of riparian vegetation and anthropogenic influences. |