Geomorphic impact of historical slate mining activity on gravel-bed streams

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F16%3AA1701HI4" target="_blank" >RIV/61988987:17310/16:A1701HI4 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Geomorphic impact of historical slate mining activity on gravel-bed streams

Popis výsledku v původním jazyce

Individual sediment inputs of coarse material may affect downstream channel geometry, morphology, and grain sizes of bed sediments. This study deals with the geomorphic interactions of artificial sediment inputs in the forms of large slate dumps and adjacent gravel-bed mountain streams (Nízký Jeseník Mts, Czech Republic). The dumps were composed of coarse slate slabs up to 500 mm in diameter, whereas local streams usually contained cobbles and gravels in plane beds and riffles, and much finer sand, silt, and clay fractions in pools. The parameters of bankfull width, and bed grain sizes, here represented by mean boulder diameter as an arithmetic mean of five largest bed particles, were investigated in short intervals within four longitudinal profiles of first- to fourth-order streams influenced by historical slate mining. Coarse sediment supply from investigated dumps in low-order channels i) often transformed channel-reach morphologies (pool-riffles to plane beds), ii) significantly altered downstream calibre of bed sediments, and iii) decreased the bankfull width near the points of active sediment inputs.

Název v anglickém jazyce

Geomorphic impact of historical slate mining activity on gravel-bed streams

Popis výsledku anglicky

Individual sediment inputs of coarse material may affect downstream channel geometry, morphology, and grain sizes of bed sediments. This study deals with the geomorphic interactions of artificial sediment inputs in the forms of large slate dumps and adjacent gravel-bed mountain streams (Nízký Jeseník Mts, Czech Republic). The dumps were composed of coarse slate slabs up to 500 mm in diameter, whereas local streams usually contained cobbles and gravels in plane beds and riffles, and much finer sand, silt, and clay fractions in pools. The parameters of bankfull width, and bed grain sizes, here represented by mean boulder diameter as an arithmetic mean of five largest bed particles, were investigated in short intervals within four longitudinal profiles of first- to fourth-order streams influenced by historical slate mining. Coarse sediment supply from investigated dumps in low-order channels i) often transformed channel-reach morphologies (pool-riffles to plane beds), ii) significantly altered downstream calibre of bed sediments, and iii) decreased the bankfull width near the points of active sediment inputs.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DE - Zemský magnetismus, geodesie, geografie

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Zeitschrift für geomorphologie

ISSN

0372-8854

e-ISSN

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Svazek periodika

60

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

247-258

Kód UT WoS článku

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EID výsledku v databázi Scopus

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