Sedimentary record and anthropogenic pollution of a complex, multiple source fed dam reservoirs: An example from the Nove Mlyny reservoir, Czech Republic
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F17%3A00467680" target="_blank" >RIV/61388980:_____/17:00467680 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/61989592:15310/17:73578950 RIV/00216224:14310/17:00107793
Výsledek na webu
<a href="http://dx.doi.org/10.1016/j.scitotenv.2016.08.127" target="_blank" >http://dx.doi.org/10.1016/j.scitotenv.2016.08.127</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.scitotenv.2016.08.127" target="_blank" >10.1016/j.scitotenv.2016.08.127</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Sedimentary record and anthropogenic pollution of a complex, multiple source fed dam reservoirs: An example from the Nove Mlyny reservoir, Czech Republic
Popis výsledku v původním jazyce
While numerous studies of dam reservoirs contamination are reported world-wide, we present a missing link in the study of reservoirs sourced from multiple river catchments. In such reservoirs, different point sources of contaminants and variable composition of their sedimentary matrices add to extremely complex geochemical patterns. We studied a unique, step-wise filled Nove Mlyny dam reservoir, Czech Republic, which consists of three interconnected sub-basins. Their source areas are located in units with contrasting geology and different levels and sources of contamination. The aim of this study is to provide an insight into the provenance of the sediment, including lithogenic elements and anthropogenic pollutants, to investigate the sediment dispersal across the reservoir, and to assess the heavy metal pollution in each basin. The study is based on multi-proxy stratigraphic analysis and geochemistry of sediment cores. There is a considerable gradient in the sediment grain size, brightness, MS and geochemistry, which reflects changing hydrodynamic energy conditions and primary pelagic production of CaCO3. The thickness of sediments generally decreases from proximal to distal parts, but underwater currents can accumulate higher amounts of sediments in distal parts near the thalweg line. Average sedimentation rates vary over a wide range from 0.58 cm/yr to 2.33 cm/yr. In addition, the petrophysical patterns, concentrations of lithogenic elements and their ratios made it possible to identify two main provenance areas, the Dyje River catchment (upper basin) and the Svratka and Jihlava River catchments (middle and lower basin). Enrichment factors (EF) were used for distinguishing the anthropogenic element contribution from the local background levels.
Název v anglickém jazyce
Sedimentary record and anthropogenic pollution of a complex, multiple source fed dam reservoirs: An example from the Nove Mlyny reservoir, Czech Republic
Popis výsledku anglicky
While numerous studies of dam reservoirs contamination are reported world-wide, we present a missing link in the study of reservoirs sourced from multiple river catchments. In such reservoirs, different point sources of contaminants and variable composition of their sedimentary matrices add to extremely complex geochemical patterns. We studied a unique, step-wise filled Nove Mlyny dam reservoir, Czech Republic, which consists of three interconnected sub-basins. Their source areas are located in units with contrasting geology and different levels and sources of contamination. The aim of this study is to provide an insight into the provenance of the sediment, including lithogenic elements and anthropogenic pollutants, to investigate the sediment dispersal across the reservoir, and to assess the heavy metal pollution in each basin. The study is based on multi-proxy stratigraphic analysis and geochemistry of sediment cores. There is a considerable gradient in the sediment grain size, brightness, MS and geochemistry, which reflects changing hydrodynamic energy conditions and primary pelagic production of CaCO3. The thickness of sediments generally decreases from proximal to distal parts, but underwater currents can accumulate higher amounts of sediments in distal parts near the thalweg line. Average sedimentation rates vary over a wide range from 0.58 cm/yr to 2.33 cm/yr. In addition, the petrophysical patterns, concentrations of lithogenic elements and their ratios made it possible to identify two main provenance areas, the Dyje River catchment (upper basin) and the Svratka and Jihlava River catchments (middle and lower basin). Enrichment factors (EF) were used for distinguishing the anthropogenic element contribution from the local background levels.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10505 - Geology
Návaznosti výsledku
Projekt
<a href="/cs/project/GAP210%2F12%2F0573" target="_blank" >GAP210/12/0573: Pozdně kvartérní seismogenní zlomová aktivita a související vývoj sedimentačních pánví ve východní části Českého masívu</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Science of the Total Environment
ISSN
0048-9697
e-ISSN
—
Svazek periodika
574
Číslo periodika v rámci svazku
JAN
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
16
Strana od-do
1456-1471
Kód UT WoS článku
000389090100136
EID výsledku v databázi Scopus
2-s2.0-84994051972