Hypolimnion Injection of Nutrient Effluents as a Method for Reducing Eutrophication
- 29 February 1980
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Fisheries and Aquatic Sciences
- Vol. 37 (3) , 320-327
- https://doi.org/10.1139/f80-045
Abstract
Injection of nutrients into the anoxic hypolimnion of a small Precambrian Shield lake for 5 yr caused less of a eutrophication problem than discharging nutrients into surface waters. Phytoplankton standing crop and production in the whole lake averaged only 10–21% of values in a nearby lake fertilized at the surface. Five-year averages for the epilimnion only were still lower: 5–8% of those in the surface-fertilized lake. Analysis of long-term trends in chlorophyll and nutrient concentrations revealed much slower rates of increase than in surface-fertilized lakes.Key words: eutrophication, hypolimnion injection, sediment–water interaction, nutrients, experimental lakesThis publication has 2 references indexed in Scilit:
- Phosphorus Input and Its Consequences for Phytoplankton Standing Crop and Production in the Experimental Lakes Area and in Similar LakesJournal of the Fisheries Research Board of Canada, 1978
- Whole-lake eutrophication experiments with phosphorus, nitrogen and carbonSIL Proceedings, 1922-2010, 1975