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Changes in Plant community at Foxcote Reservior Following Use of Ferric Sulphate to Control Nutrient Levels
Author(s) -
YOUNG S. N.,
CLOUGH W. T.,
THOMAS A. J.,
SIDDALL R.
Publication year - 1988
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1988.tb01242.x
Subject(s) - eutrophication , plankton , nutrient , macrophyte , algae , environmental science , aquatic plant , environmental chemistry , ecology , hydrology (agriculture) , chemistry , biology , geology , geotechnical engineering
SYNOPSIS I n an attempt to control planktonic algal growth in I n an attempt to cosntrol planktonic algal growth in Foxcote water supply reservoir, which is supplied by eutrophic waters from the river Great Ouse, ferric sulphate has been used to reduce ortho‐phosphate concentrations in the pumped inlet water. Internal recycling of sediment‐bound nutrients retarded the expected algal control for almost three years. During the third year, a marked change in the ecology of the reservoir occurred, and planktonic algae were largely replaced by prolific growths of filamentous species and rooted macrophytes. While the changed flora have caused their own problems, the reservoir is now less prone to closure due to intractable water treatment problems.