Abstract
The release of phosphate from anoxic sediments is still not precisely understood. The proposal by Einsele (1936), later adapted by Mortimer (1941, 1942), that this release is caused by the reduction of a FeOOH-phosphate complex, is generally accepted as the reaction mechanism, although there is no experimental evidence for it. Golterman (1995a) and De Groot (1991) have shown that this P-release may indeed be brought about by H2S, but only if a large excess of H2S is available. In lakes, however, the reducing capacity is relatively small as most of the organic carbon produced by primary production is used for other reduction processes. The solubilization of apatite is a likely alternative, as anoxic conditions are automatically concomitant with a pH decrease, and in hard waters the formation of apatite is well demonstrated. This mechanism is not active in soft waters, such as those studied by Mortimer. Another proposed process is the release of polyphosphate by sediment bacteria. Experimental evidence for this mechanism is, however, weak. The fourth possibility is the need for bacteria to mineralize a larger part of the sediment organic matter under anoxic conditions in order to obtain the same amount of energy, as some energy will be retained in the fermentation products. There is circumstantial evidence for this hypothesis, but laboratory experiments are needed before real evidence will be available.
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Alaoui-Mhamdi, M. & Lofti Aleya, 1995. Assessment of the eutrophication of Al Massira reservoir (Morocco) by means of a survey of the biogeochemical balance of phosphate. Hydrobiologia 297: 75–82.
Baldwin, D. S., 1996. The phosphorus composition of a diverse series of Australian sediments. Hydrobiologia 335: 63–73.
Boers, P. C. M. & O. Van Hese, 1988. Phosphorus release from the peaty sediments of the Loosdrecht Lakes (The Netherlands). Wat. Res. 22: 355–363.
Boers, P. C. M. & F. De Bles, 1991. Ion concentrations in interstitial water as indicators for phosphorus release processes and reactions. Wat. Res. 25: 591–598.
Boström, B., I. Ahlgren & R. Bell, 1985. Internal nutrient loading in a eutrophic lake reflected in seasonal variations of some sediment parameters. Verh. int. Ver. Limnol. 22: 3335–3339.
De Groot, C. J., 1991. The influence of FeS on the inorganic phosphate system in sediments. Verh. int. Ver. Limnol. 23: 3029–3035.
De Groot, C. J. & H. L. Golterman, 1993. On the presence of organic phosphate in some Camargue sediments: evidence for the importance of phytate. Hydrobiologia 252: 117–126.
De Kanel, J. & J. W. Morse, 1978. The chemistry of orthophosphate uptake from seawater onto calcite and aragonite. Geochim. Cosmochim. Acta 42: 1335–1340.
Einsele, W., 1936. Ueber die Beziehungen des Eisenkreislaufs zum Phosphatekreislauf im eutrophen See. Arch. Hydriobiol. 29: 664–686.
Einsele, W., 1937. Physikalisch-chemische Betrachtung einiger Probleme des limnischen Mangan-und Eisenkreislaufs. Verh. int. Ver. Limnol. 5: 69–84.
Einsele, W., 1938. Ueber chemische und kolloidchemische Vorgänge in Eisen-Phosphate Systemen unter limnochemischen und limnogeologischen Gesichtspunkten. Arch. Hydrobiol. 33: 361–387.
Einsele, W. & Vetter, H., 1938. Untersuchungen über die Entwicklung der physikalischen und chemischen Verhältnisse im Jahreszyklus in einem mässig eutrophen See (Schleinsee bei Langenargen). Int. Rev. Hydrobiol. 36: 285–324.
Gächter, R. & J. S. Meyer, 1993. The role of microorganisms in mobilization and fixation of phosphorus in sediments. Hydrobiologia 253: 103–121.
Goedkoop, W. & K. Petterson, 2000. Seasonal changes in sediment phosphorus forms in relation to sedimentation and benthic bacterial biomass in Lake Erken. Hydrobiologia 431: 41–50.
Golterman, H. L., 1973a. Vertical movement of phosphate in freshwater. In Griffith, E. J., Beeton, A., Spencer, J. M. & Mitchell, D. T. (eds) Environmental phosphorus handbook; New York etc. Wiley, 1973: 509–538.
Golterman, H. L., 1973b. Natural phosphate sources in relation to phosphate budgets: a contribution to the understanding of eutrophication. Wat. Res. 7: 3–17.
Golterman H. L. (ed.), 1977 Interactions between Sediments and Freshwater. Dr W. Junk Publishers, The Hague: 473 pp.
Golterman, H. L., 1984. Sediments, modifying and equilibrating factors in the chemistry of freshwaters. Verh. int. Ver. Limnol. 22: 23–59.
Golterman, H. L., 1995a. The role of the ironhydroxide-phosphatesulphide system in the phosphate exchange between sediments and overlying water. Hydrobiologia 297: 43–54.
Golterman, H. L., 1995b. The labyrinth of nutrient cycles and buffers in wetlands: results based on research in the Camargue (Southern France). Hydrobiologia 315: 39–58.
Golterman, H. L., 1996. Fractionation of sediment phosphate with chelating compounds: a simplification, and comparison with other methods. Hydrobiologia 335: 87–95.
Golterman, H. L., 1998. The distribution of phosphate over ironbound and calcium-bound phosphate in stratified sediments. Hydrobiologia 364: 75–81.
Golterman H. L., Joëlle Paing, Laura Serrano & Elena Gomez. 1998. Presence of and phosphate release from polyphosphates or phytate phosphate in lake sediments. Hydrobiologia 364: 99–104.
Golterman, H. L., A. B. Viner & G. F. Lee., 1977. Preface. In Golterman H. L. (ed.), Interactions between Sediments and Freshwater. Dr W. Junk Publishers, The Hague
Heaney, S. I., W. J. P. Smyly & J. F. Talling, 1986. Interactions of Physical, Chemical and Biological Processes in Depth and Time within a Productive English Lake during Summer Stratification. Int. Rev. ges. Hydrobiol. 71: 441–494.
House, W. A., 1990. The prediction of phosphate coprecipitation with calcite in freshwaters. Wat. Res. 24: 1017–1023.
House, W. A. & L. Donaldson, 1986. Adsorption of phosphate on calcite. J. Colloid Interface Sci. 112: 309–324.
House, W. A., H. Casey, L. Donaldson & S. Smith 1986. Factors affecting the coprecipitation of phosphorus with calcite in hardwaters. Wat. Res. 20: 917–922.
Hupfer, M., R. Gächter & H. Rüegger, 1995. Polyphosphate in lake sediments: 31P NMR spectrospcopy as a tool for its identification. Limnol. Oceanogr. 40: 610–617.
Jones, J. G., 1982. Bacteria in freshwater sediments. In Nedwell & Brown (eds), Sediment Microbiology, Academic Press, London: 234 pp.
Kuznetsov, S. I., 1970. the Microflora of Lakes. University of Texas Press, Austin and London: 503 pp.
Kulaev, I. S., 1979. The Biochemistry of Inorganic Polyphosphates. Wiley.
Kulaev, I. S. & V. M. Vagabov, 1983. Polyphosphate metabolism in micro-organisms. Adv. Microbial Physiol. 24: 83–171.
Lee, G. F., W. C. Sonzogni & R. D. Spear, 1977. Significance of oxic vs anoxic conditions for lake Mendota sediment. In Golterman H. L. (ed.), Interactions between Sediments and Freshwater. Dr W. Junk Publishers, The Hague: 294–306.
Lijklema, L., 1977. The role of iron in the exchange of phosphate between water and sediment. In Golterman, H. L. (ed.), Interactions betwen Sediments and Freshwater. Dr W. Junk Publishers, The Hague: 313–317.
Miltenburg J. C. & H. L. Golterman, 1988. The energy of the adsorption of o-phosphate onto ferric hydroxide. Hydrobiologia 364: 93–97.
Mortimer, C. H., 1941. The exchange of dissolved substances between mud and water in lakes. J. Ecol. 29: 280–329.
Mortimer, C. H., 1942. The exchange of dissolved substances between mud and water in lakes. J. Ecol. 30: 147–201.
Mortimer, C. H., 1971. Chemical exchanges between sediments and water in the Great Lakes – speculations on probable regulatory mechanisms. Limnol. Oceanography 16: 387–404
Prairie, Y., C. de Montigny & P. Giorgio. 2001. Phosphorus release from anoxic sediment: Mortimers paradigma revisited. Proceedings Int. Soc. Limnol. 27. In press
Ruttenberg, K. C., 1992. Development of a sequential extraction method for different forms of phosphorus in marine sediments. Limnol. Oceanogr. 37: 1460–1482.
Sinke, A. J., C. A. A. Cornelese, P. Keizer, O. F. R. van Tongeren, & T. E. Cappenberg. 1990. Mineralization, pore water chemistry and phosphorus release from peaty sediments in the eutrophic Loosdrecht lakes, The Netherlands. Freshwat. Biol. 23: 587–599.
Stumm, W. & J. J. Morgan, 1970. Aquatic Chemistry. Wiley Intersciences, New York, London, Toronto: 583 pp.
Suzumura, M. & A. Kamatani, 1995. Mineralization of inositol hexaphosphate in aerobic and anaerobic marine sediments: implications for the phosphorus cycle. Geochim. Cosmochim. Acta 59: 1021–1026
Thomas, E. A., 1965. Phosphat-Elimination in der Belebtschlammanlage von Männedorf und Phosphat-Fixation in See-und Klärschlamm. Vierteljahrsschr. Naturforsch. Ges. Zürich 110: 419–434.
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Golterman, H.L. Phosphate release from anoxic sediments or `What did Mortimer really write?'. Hydrobiologia 450, 99–106 (2001). https://doi.org/10.1023/A:1017559903404
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DOI: https://doi.org/10.1023/A:1017559903404