Phosphorus fractionation in lake sediments – Lakes Volvi and Koronia, N. Greece

Phosphorus fractionation in lake sediments – Lakes Volvi and Koronia, N. Greece

Sediments from two lakes, the meso-to-eutrophic Volvi and the hypertrophic Koronia, located in N. Greece were examined on the basis of P-fractionation. In both lakes, the rank order of P-fractions was HCl–P>NaOH–P>BD–P>NH 4Cl–P. The loosely sorbed phosphorus (NH 4Cl–P) represented <1% of...

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Bibliographic Details
Published in:Chemosphere (Oxford) Vol. 46; no. 8; pp. 1147 - 1155
Main Authors: Kaiserli, A, Voutsa, D, Samara, C
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 01-03-2002
Elsevier
Subjects:
Applied sciences
Calcium - chemistry
Continental surface waters
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Environmental Monitoring
Eutrophication
Exact sciences and technology
Geologic Sediments - chemistry
Grain size
Greece
Greece, Koronia L
Greece, Volvi L
Iron Compounds - chemistry
Lakes
Natural water pollution
P-fractions
Particle Size
PCA
Phosphorus
Phosphorus - analysis
Phosphorus - chemistry
Pollution
Pollution sources. Measurement results
Pollution, environment geology
Sediment
Soil and sediments pollution
Trophic status
Water treatment and pollution
Greece
Europe
Greece, Kentriki Makedonia, Thessaloniki, Volvi L
Greece, Kentriki Makedonia, Thessaloniki, Koronia L
Grain size
Sediment
Lakes
Phosphorus
Trophic status
PCA
P-fractions
Fractionation
Factor analysis
Statistical analysis
Geochemistry
Lake sediments
Variance analysis
Eutrophication
Pollution
Content
Water quality
Nutrient
Principal component analysis
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Summary:Sediments from two lakes, the meso-to-eutrophic Volvi and the hypertrophic Koronia, located in N. Greece were examined on the basis of P-fractionation. In both lakes, the rank order of P-fractions was HCl–P>NaOH–P>BD–P>NH 4Cl–P. The loosely sorbed phosphorus (NH 4Cl–P) represented <1% of the sedimentary inorganic phosphorus, while the reductant phosphorus (BD–P) ranged 5–6%. The calcium bound phosphorus (HCl–P) showed considerable contribution (59–74%) to the sedimentary inorganic P-loads. The metal oxide bound phosphorus (NaOH–P) was higher in the hypertrophic (30–35%) than in the meso-to-eutrophic system (19–28%). Fine-sized sediments exhibited significantly higher concentrations of HCl–P in Volvi and NH 4Cl–P in Koronia. Sampling month had significant effect in variance of most P-fractions and other sediment features in both lakes. Use was also made of multivariate statistics to identify the factors which influence the sedimentary phosphorus. NaOH–P was the most reactive fraction in Lake Volvi. Iron compounds and organic matter seem to play a significant role in regulating this labile P-budget. NH 4Cl–P was the more reactive fraction in Lake Koronia which was influenced by sedimentation of P-absorbed on clay/silt fine particles.
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ISSN:0045-6535
1879-1298
DOI:10.1016/S0045-6535(01)00242-9