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Chemical composition and phosphorus fractionation of sediments in the Bohemian Forest lakes

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    SYSNO ASEP0150324
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JOstatní články
    TitleChemical composition and phosphorus fractionation of sediments in the Bohemian Forest lakes
    Author(s) Borovec, Jakub (HBU-Z)
    Source TitleSilva Gabreta. - : Správa Národního parku a Chráněné krajinné oblasti Šumava - ISSN 1211-7420
    Roč. 4, č. 4 (2000), s. 179-184
    Number of pages6 s.
    ActionAcidified Lakes in the Bohemian/Bavarian Forest - History, Present and Future
    Event date21.03.2000-23.03.2000
    VEvent locationČ. Budějovice
    CountryCZ - Czech Republic
    Languageeng - English
    CountryCZ - Czech Republic
    Subject RIVCB - Analytical Chemistry, Separation
    R&D ProjectsGA206/97/0072 GA ČR - Czech Science Foundation (CSF)
    GA206/98/0727 GA ČR - Czech Science Foundation (CSF)
    GA206/00/0063 GA ČR - Czech Science Foundation (CSF)
    CEZAV0Z6017912 - HBU-Z, BC-A
    MSM123100004
    AnnotationSediments of seven Bohemian Forest lakes were analysed for chemical composition (dry mass, pH, organic carbon (OC), P, Fe, Al) and P fractionation. Differences among sediments from all lakes were small, except Plesné Lake. Due to low pH, no inorganic carbon could be found in sediments. Sediment from Plesne Lake contained the highest concentration of P (4.0 mg/g) in comparison with other lakes (1.8-2.4 mg/g), apparently reflecting the basin geology. The sequential P fractionation according to Psenner & Puczko (1988) was used to examine differences in phosphorus components. The largest part of P (80-90) was extracted in NaOH-20°C fraction, i.e. bound with Al oxy-hydroxides and organic matter. Contribution of other P fractions of all samples were small (1-5). This suggests that release of P from sediments might be independent of oxygen depletion but governed rather by pH.
    WorkplaceInstitute of Hydrobiology (until 2005)
    ContactVáclava Lavičková, lavickova@hbu.cas.cz, Tel.: 387 775 889
    Year of Publishing2001

Number of the records: 1  

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