Historical pond systems as long-term composite archives of anthropogenic contamination in the Vrchlice River, Czechia
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13520%2F21%3A43896114" target="_blank" >RIV/44555601:13520/21:43896114 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/61989592:15310/21:73610763
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S2213305421000060" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2213305421000060</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ancene.2021.100283" target="_blank" >10.1016/j.ancene.2021.100283</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Historical pond systems as long-term composite archives of anthropogenic contamination in the Vrchlice River, Czechia
Popis výsledku v původním jazyce
River damming has numerous benefits and adverse consequences. Unlike large dam reservoirs whose construction peaked in the twentieth century, historical ponds and their accumulated legacy sediments span much longer time periods. Small ponds in many areas worldwide are sinks for anthropogenic pollutants and affect sediment delivery to downstream river reaches. Thousands of ponds cover an area of >0.2 % of the territory of Czechia, equal to the area of its ten largest dam reservoirs. This paper reports a sequence of constructed and removed pond dams along the Vrchlice River, Czechia, and their use as sedimentary archives, in order to reconstruct the long-term (>200 yr) history of contamination. Historical maps, geophysical profiles, activities of caesium-137 isotope, grain size, and sediment geochemistry in 16 sediment cores enabled the reconstruction of contamination in the pond, dam reservoir, and floodplain sediments since ?1780. Contamination by lead, copper, zinc, arsenic, and cadmium from atmospheric, geogenic and agricultural sources increased since ?1850 peaked in the 1970s and 1980s, and then decreased slightly. Polycyclic aromatic hydrocarbons and pesticides polluted post-1970 sediments, reflecting their use in agriculture. The removal of dams resulted in the rapid incision of newly formed river channels into the old pond deposits. Following the reinstatement of dams, channels filled rapidly (up to 5.2 cm/yr) with new lacustrine sediment, whereas sediment accumulated slowly (<0.4 cm/yr) outside the channels. Upon dam removal, contaminated channel-fill sediment likely redistributed into the water course. As ponds are complex depositional systems with the heterogeneous distribution of sediment and associated contaminants, active and extinct ponds are promising long-term sedimentary archives that can extend understanding of human interactions with Earth systems.
Název v anglickém jazyce
Historical pond systems as long-term composite archives of anthropogenic contamination in the Vrchlice River, Czechia
Popis výsledku anglicky
River damming has numerous benefits and adverse consequences. Unlike large dam reservoirs whose construction peaked in the twentieth century, historical ponds and their accumulated legacy sediments span much longer time periods. Small ponds in many areas worldwide are sinks for anthropogenic pollutants and affect sediment delivery to downstream river reaches. Thousands of ponds cover an area of >0.2 % of the territory of Czechia, equal to the area of its ten largest dam reservoirs. This paper reports a sequence of constructed and removed pond dams along the Vrchlice River, Czechia, and their use as sedimentary archives, in order to reconstruct the long-term (>200 yr) history of contamination. Historical maps, geophysical profiles, activities of caesium-137 isotope, grain size, and sediment geochemistry in 16 sediment cores enabled the reconstruction of contamination in the pond, dam reservoir, and floodplain sediments since ?1780. Contamination by lead, copper, zinc, arsenic, and cadmium from atmospheric, geogenic and agricultural sources increased since ?1850 peaked in the 1970s and 1980s, and then decreased slightly. Polycyclic aromatic hydrocarbons and pesticides polluted post-1970 sediments, reflecting their use in agriculture. The removal of dams resulted in the rapid incision of newly formed river channels into the old pond deposits. Following the reinstatement of dams, channels filled rapidly (up to 5.2 cm/yr) with new lacustrine sediment, whereas sediment accumulated slowly (<0.4 cm/yr) outside the channels. Upon dam removal, contaminated channel-fill sediment likely redistributed into the water course. As ponds are complex depositional systems with the heterogeneous distribution of sediment and associated contaminants, active and extinct ponds are promising long-term sedimentary archives that can extend understanding of human interactions with Earth systems.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10511 - Environmental sciences (social aspects to be 5.7)
Návaznosti výsledku
Projekt
<a href="/cs/project/GA17-06229S" target="_blank" >GA17-06229S: Vývoj sedimentace v přehradních nádržích jako antropogenních bariérách v říčních systémech: od materiálové bilance po osud polutantů</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Anthropocene
ISSN
2213-3054
e-ISSN
—
Svazek periodika
33
Číslo periodika v rámci svazku
100283
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
11
Strana od-do
1-11
Kód UT WoS článku
000632441900009
EID výsledku v databázi Scopus
2-s2.0-85101115345