The effect of outflow depth on phosphorus retention in a small, hypertrophic temperate reservoir with short hydraulic residence time.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077387%3A_____%2F01%3A62013076" target="_blank" >RIV/60077387:_____/01:62013076 - 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

The effect of outflow depth on phosphorus retention in a small, hypertrophic temperate reservoir with short hydraulic residence time.

Popis výsledku v původním jazyce

Stratification and phosphorus fluxes were studied in České údolí Reservoir during two stratification periods which differed in outlet operation and in hydraulic residence time (1997: surface outlets and 14 days; 1998: bottom outlets and 23 days). Use ofbottom outlets resulted in weaker thermal stratification, a less pronounced oxygen deficit in the hypolimnion, and significantly lower P retention (17%) in comparison with surface discharge (42%). Factors contributing to lower retention of P during the use of bottom outlets were (i) flushing of the hypolimnion which intensified longitudinal transport of particles and (ii) P release from sediments due to a lower concentration of nitrate and to more frequent contact of sediments in the shallows with waterof pH>9. Phytoplankton biomass was comparable in both years despite some differences in vertical distribution.

Název v anglickém jazyce

The effect of outflow depth on phosphorus retention in a small, hypertrophic temperate reservoir with short hydraulic residence time.

Popis výsledku anglicky

Stratification and phosphorus fluxes were studied in České údolí Reservoir during two stratification periods which differed in outlet operation and in hydraulic residence time (1997: surface outlets and 14 days; 1998: bottom outlets and 23 days). Use ofbottom outlets resulted in weaker thermal stratification, a less pronounced oxygen deficit in the hypolimnion, and significantly lower P retention (17%) in comparison with surface discharge (42%). Factors contributing to lower retention of P during the use of bottom outlets were (i) flushing of the hypolimnion which intensified longitudinal transport of particles and (ii) P release from sediments due to a lower concentration of nitrate and to more frequent contact of sediments in the shallows with waterof pH>9. Phytoplankton biomass was comparable in both years despite some differences in vertical distribution.

Druh

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

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2001

Kód důvěrnosti údajů

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

Název periodika

International Review of Hydrobiology

ISSN

1434-2944

e-ISSN

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Svazek periodika

86

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

7

Strana od-do

585-601

Kód UT WoS článku

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EID výsledku v databázi Scopus

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