Phosphorus fractions and phosphorus sorption characteristics of freshwater sediments and their relationship to sediment composition

0150354 - HBU-Z 20013069 RIV DE eng J - Journal Article
Borovec, Jakub - Hejzlar, Josef
Phosphorus fractions and phosphorus sorption characteristics of freshwater sediments and their relationship to sediment composition.
Archiv für Hydrobiologie. Roč. 151, č. 4 (2001), s. 687-703. ISSN 0003-9136
R&D Projects: GA ČR GA206/99/0028; GA ČR GA206/00/0063
Keywords : nutrients in aquatic systems * sorption/desorption of phosphorus
Subject RIV: DA - Hydrology ; Limnology
Impact factor: 1.186, year: 2001

P was fractionated according to PSENNER & PUCSKO (1988)[Phosphorus fractionation: advantages and limits of the method for the study of sediment P origins and interactions. - Arch. Hydrobiol. Beih. Ergebn. Limnol. 30: 43-49] within a set of sediments operationally divided into acidic, neutral, and alkaline groups. Relationships among fractional distribution of P, concentrations of sediment components important for P-sorption (Fe, Al, organic carbon (OC)), and P-sorption parameters were analyzed using a redundancy analysis method. NaOHsub25/sub-P fraction prevailed within the group of acidic sediments from forest lakes. The NaOHsub25/sub-P followed by BD-P and HCl-P was the largest fraction in the neutral and alkaline sediment groups. Fe and Al were found to be positively correlated with P in the BD and HCl fractions, respectively. Maximum sediment P-sorption capacity was the only sorption parameter correlated with P-fractionation; Al and OC in the NaOHsub25/sub fraction were the most significant explanatory constituents.
Permanent Link: http://hdl.handle.net/11104/0047892