Trends and evolution of contamination in a well-dated water
reservoir sedimentary archive: the Brno Dam, Moravia, Czech
Republic

J 2013

Trends and evolution of contamination in a well-dated water reservoir sedimentary archive: the Brno Dam, Moravia, Czech Republic

SEDLÁČEK, Jan, Ondřej BÁBEK a Tomas Matys GRYGAR

Základní údaje

Originální název

Trends and evolution of contamination in a well-dated water reservoir sedimentary archive: the Brno Dam, Moravia, Czech Republic

Autoři

SEDLÁČEK, Jan (203 Česká republika, garant, domácí), Ondřej BÁBEK (203 Česká republika, domácí) a Tomas Matys GRYGAR

Vydání

Environmental Earth Sciences, New York, Springer, 2013, 1866-6280

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Full Text

Impakt faktor

Impact factor: 1.572

Kód RIV

RIV/00216224:14310/13:00107090

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1007/s12665-012-2089-x

UT WoS

000322390300010

Klíčová slova anglicky

Brno Dam; Dam sediments; Cs-137 dating; Heavy metals; Eutrophication

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 30. 4. 2020 13:04, Mgr. Michal Petr

Anotace

V originále

The sedimentary record from dams can provide important information about stratigraphy and pollution history of densely populated river basins. The Brno Dam is a small reservoir within the Morava River catchment (Czech Republic) accumulating lacustrine sediments since 1940 (dam filling). The stratigraphy of the dam sediments was studied using multiproxy stratigraphic analysis (X-ray densitometry, bulk magnetic susceptibility, diffuse spectral reflectance and cation-exchange capacity) of five sediment cores supported by ground-penetration radar sections. Concentrations of heavy metals were studied by X-ray fluorescence analysis. The thickness of the dam sediments decreases from 220 cm in the proximal part, near the feeder, to only 10 cm in the distal part, near the dyke. Sediments consist predominantly of finely-laminated silty sands, silts and clays. The sedimentation rate for the last similar to 22 years, inferred from Cs-137 dating, decreases from 4.2 cm per year in the proximal part of the dam to 0.29 cm per year in its distal part. Distinct long-term trends were found in the depth profiles of heavy metal concentrations. The heavy metal contents increase significantly after 1940 in all cores, with peak concentrations confined to layers deposited in the 1960s and 1980s. A decreasing trend occurred after 1989 (the decline in Czech heavy industry). The results also show that heavy metal contamination is dependent on lithology (hyperpycnal flow layers related to floods). Increased concentrations of phosphorus in the sediments indicate long-term eutrophication of the dam. Despite the recent decreasing trends in heavy metal concentrations the phosphorus contents remain high in recent years and have caused persisting problems with algal growth in the dam mentioned by previous authors.

Citovat

SEDLÁČEK, Jan, Ondřej BÁBEK a Tomas Matys GRYGAR. Trends and evolution of contamination in a well-dated water reservoir sedimentary archive: the Brno Dam, Moravia, Czech Republic. Environmental Earth Sciences. New York: Springer, 2013, roč. 69, č. 8, s. 2581-2593. ISSN 1866-6280. Dostupné z: https://dx.doi.org/10.1007/s12665-012-2089-x.

@article{1580443,
   author = {Sedláček, Jan and Bábek, Ondřej and Grygar, Tomas Matys},
   article_location = {New York},
   article_number = {8},
   doi = {http://dx.doi.org/10.1007/s12665-012-2089-x},
   keywords = {Brno Dam; Dam sediments; Cs-137 dating; Heavy metals; Eutrophication},
   language = {eng},
   issn = {1866-6280},
   journal = {Environmental Earth Sciences},
   title = {Trends and evolution of contamination in a well-dated water reservoir sedimentary archive: the Brno Dam, Moravia, Czech Republic},
   url = {https://link.springer.com/content/pdf/10.1007%2Fs12665-012-2089-x.pdf},
   volume = {69},
   year = {2013}
}

TY  - JOUR
ID  - 1580443
AU  - Sedláček, Jan - Bábek, Ondřej - Grygar, Tomas Matys
PY  - 2013
TI  - Trends and evolution of contamination in a well-dated water reservoir sedimentary archive: the Brno Dam, Moravia, Czech Republic
JF  - Environmental Earth Sciences
VL  - 69
IS  - 8
SP  - 2581-2593
EP  - 2581-2593
PB  - Springer
SN  - 18666280
KW  - Brno Dam
KW  - Dam sediments
KW  - Cs-137 dating
KW  - Heavy metals
KW  - Eutrophication
UR  - https://link.springer.com/content/pdf/10.1007%2Fs12665-012-2089-x.pdf
L2  - https://link.springer.com/content/pdf/10.1007%2Fs12665-012-2089-x.pdf
N2  - The sedimentary record from dams can provide important information about stratigraphy and pollution history of densely populated river basins. The Brno Dam is a small reservoir within the Morava River catchment (Czech Republic) accumulating lacustrine sediments since 1940 (dam filling). The stratigraphy of the dam sediments was studied using multiproxy stratigraphic analysis (X-ray densitometry, bulk magnetic susceptibility, diffuse spectral reflectance and cation-exchange capacity) of five sediment cores supported by ground-penetration radar sections. Concentrations of heavy metals were studied by X-ray fluorescence analysis. The thickness of the dam sediments decreases from 220 cm in the proximal part, near the feeder, to only 10 cm in the distal part, near the dyke. Sediments consist predominantly of finely-laminated silty sands, silts and clays. The sedimentation rate for the last similar to 22 years, inferred from Cs-137 dating, decreases from 4.2 cm per year in the proximal part of the dam to 0.29 cm per year in its distal part. Distinct long-term trends were found in the depth profiles of heavy metal concentrations. The heavy metal contents increase significantly after 1940 in all cores, with peak concentrations confined to layers deposited in the 1960s and 1980s. A decreasing trend occurred after 1989 (the decline in Czech heavy industry). The results also show that heavy metal contamination is dependent on lithology (hyperpycnal flow layers related to floods). Increased concentrations of phosphorus in the sediments indicate long-term eutrophication of the dam. Despite the recent decreasing trends in heavy metal concentrations the phosphorus contents remain high in recent years and have caused persisting problems with algal growth in the dam mentioned by previous authors.
ER  -

SEDLÁČEK, Jan, Ondřej BÁBEK a Tomas Matys GRYGAR. Trends and evolution of contamination in a well-dated water reservoir sedimentary archive: the Brno Dam, Moravia, Czech Republic. \textit{Environmental Earth Sciences}. New York: Springer, 2013, roč.~69, č.~8, s.~2581-2593. ISSN~1866-6280. Dostupné z: https://dx.doi.org/10.1007/s12665-012-2089-x.

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