Long-term water and sediment quality of the Elbe River's oxbow lake near the town of Poděbrady, the Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F19%3A10396971" target="_blank" >RIV/00216208:11310/19:10396971 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=~nLJ71taiR" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=~nLJ71taiR</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12665-019-8566-8" target="_blank" >10.1007/s12665-019-8566-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Long-term water and sediment quality of the Elbe River's oxbow lake near the town of Poděbrady, the Czech Republic

Popis výsledku v původním jazyce

The studied oxbow lake near the town of Poděbrady (the Czech Republic) belongs to unique, less influenced old meanders of the Elbe River that are still completely surrounded by floodplain forests. The research works (2004-2015) included bathymetry, hydrological regime, water and sediment quality, and hydrobiological analyses. Due to the connection with the river, the hydrological regime was significantly determined by the Elbe River. Spatial electrical conductivity differences were found. Values of pH fluctuated (lower ANC(4.5)) during the year rising with phytoplankton development. Associated parameter of organic matter content (mean COD(Mn) = 5.5 mg L(-1)) was similar to that in the river. The Elbe represented a source of nitrogen (max. N-NO3 = 5.9 mg L(-1)) and phosphorus for the lake, where the phosphorus concentrations reached maximum levels in summer (max. TP = 0.220 mg L(-1)) under low oxygen saturation. The concentrations of Cd, As, Hg, and Pb in sediments exceeded the upper limit values set in the new assessment system developed by the International Commission for the Protection of the Elbe River, and together with a igh index of geoaccumulation in the case of Ag, the concentrations of these elements indicate significant contamination. Although the lake was not extremely polluted, high concentrations of nutrients and sediment load could represent a risk for aquatic ecosystems. The comparison of the results with other studies on oxbow lakes situated in different river basins provided new and complex conclusions in a broader context.

Název v anglickém jazyce

Long-term water and sediment quality of the Elbe River's oxbow lake near the town of Poděbrady, the Czech Republic

Popis výsledku anglicky

The studied oxbow lake near the town of Poděbrady (the Czech Republic) belongs to unique, less influenced old meanders of the Elbe River that are still completely surrounded by floodplain forests. The research works (2004-2015) included bathymetry, hydrological regime, water and sediment quality, and hydrobiological analyses. Due to the connection with the river, the hydrological regime was significantly determined by the Elbe River. Spatial electrical conductivity differences were found. Values of pH fluctuated (lower ANC(4.5)) during the year rising with phytoplankton development. Associated parameter of organic matter content (mean COD(Mn) = 5.5 mg L(-1)) was similar to that in the river. The Elbe represented a source of nitrogen (max. N-NO3 = 5.9 mg L(-1)) and phosphorus for the lake, where the phosphorus concentrations reached maximum levels in summer (max. TP = 0.220 mg L(-1)) under low oxygen saturation. The concentrations of Cd, As, Hg, and Pb in sediments exceeded the upper limit values set in the new assessment system developed by the International Commission for the Protection of the Elbe River, and together with a igh index of geoaccumulation in the case of Ag, the concentrations of these elements indicate significant contamination. Although the lake was not extremely polluted, high concentrations of nutrients and sediment load could represent a risk for aquatic ecosystems. The comparison of the results with other studies on oxbow lakes situated in different river basins provided new and complex conclusions in a broader context.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Environmental Earth Sciences

ISSN

1866-6280

e-ISSN

1866-6299

Svazek periodika

78

Číslo periodika v rámci svazku

18

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

15

Strana od-do

559

Kód UT WoS článku

000484942300001

EID výsledku v databázi Scopus

2-s2.0-85071780523