By Gunnar Persson, Mats Jansson
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Additional info for Phosphorus in Freshwater Ecosystems: Proceedings of a Symposium held in Uppsala, Sweden, 25–28 September 1985
1. Fish. Res. Bd Can. 30: 1525-1536. Lean, D. R. , 1973b. Phosphorus dynamics in lake water. Science 179: 678-680. McClellan, G. H. & T. P. Hignett, 1978. Some economic and technical factors affecting use of phosphate raw materials. In Phosphorus in the Environment; its chemistry and biochemistry. A Ciba Foundation Symposium. Elsevier, Amsterdam: 49-64. McKelvey, V. , 1973. Abundance and Distribution of Phosphorus in the Lithosphere. In E. J. Griffith, A. Beeton, J. M. Spencer & D. T. Mitchell (eds), Environmental Phosphorus Handbook: J.
L. Bytriskaya, 1976. Biogeochemical cycles of elements in some natural zones of european US SR. In B. H. Svensson & R. Soderlund (eds), Nitrogen, phosphorus and sulphur-global cycles, - SCOPE Report 7. Ecol. Bull. Stockholm. 22: 135-155. 33 Gachter, R. & O. J. Furrer, 1972. Der Beitrag der Landwirtschaft zur Eutrophierung der Gewasser in Schweiz. Schweiz. Z. Hydrol. 34: 41-70. Giles, C. , 1970. Interpretation and use of sorption isotherms. In Sorption and transport processes in soils. I. Monograph No.
Hutchinson (op. cit) computed the mean values for the different phosphorus forms and found that the soluble phosphate phosphorus contributed 13 % of the total phosphorus in the lake water in the very large number of lakes in northern Wisconsin discussed by Juday and Birge. It seems that most of the phosphorus in undisturbed freshwaters is in other forms than soluble phosphate phosphorus. The following discussion concentrates on the sestonic phosphorus fractions which, as far as riverine transport is concerned, will be referred to as suspended sediment phosphorus.