Contrasting experimental manipulations of the acidity of catchment drainage water: Effects on interactions between humic substances, iron and phosphate
Shaw, Peter J., Jones, Rodger I. and De Haan, Henk (1996) Contrasting experimental manipulations of the acidity of catchment drainage water: Effects on interactions between humic substances, iron and phosphate. [in special issue: The HUMEX/HUMOR Project and Humic Substances ] Environmental International, 22, (5), 611-618. (doi:10.1016/0160-4120(96)00052-9).
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Description/Abstract
Abiotic interactions occurring between dissolved humic substances, iron, and phosphate were investigated by addition of radioisotope tracers (55FeCl3 and PO43−) to surface water samples collected from catchments subjected to contrasting pH manipulations. Increases from pH 4 to circumneutral pH due to catchment liming resulted in increases in the proportions of added ionic 55Fe and 32P recovered in higher molecular size fractions following gel chromatography. Changes in ionic composition due to catchment liming did not result in marked changes in redistributions of added 55Fe and 32P. Comparatively small differences between the pH values and ionic compositions of the control and artificially acidified subcatchments of a humic lake did not result in substantial changes in the redistributions of added 55Fe and 32P.
| Item Type: | Article |
|---|---|
| Additional Information: | Shaw P. J., Jones R.I., de Haan H., (1996). "Contrasting experimental manipulations of the acidity of catchment drainage water: Effects on interactions between humic substances, iron and phosphate." Environmental International, 22, 611-618 |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | University Structure - Pre August 2011 > School of Civil Engineering and the Environment |
| Item ID: | 75745 |
| Date Deposited: | 11 Mar 2010 |
| Last Modified: | 01 Jun 2011 10:24 |
| Contributors: | Shaw, Peter J. (Author) Jones, Rodger I. (Author) De Haan, Henk (Author) |
| Date: | 1996 |
| Additional Information: | Shaw P. J., Jones R.I., de Haan H., (1996). "Contrasting experimental manipulations of the acidity of catchment drainage water: Effects on interactions between humic substances, iron and phosphate." Environmental International, 22, 611-618 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/75745 |
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