Eutrophication is a problem in many lake regions, as the export of limiting nutrients, such as phosphorus and nitrogen, to lakes has increased. Direct nutrient inputs include sewage, domestic detergents and industrial waste. Som einputs are more diffuse, such as from urban runoff, agricultural fertilizers, pastures, and erosion from road construction and deforestation. In British Columbia, a variety of mitigation methods have been proposed (Rysavy & Sharpe 1995) and applied (Henderson-Sellers & Markland 1987) in efforts to return lakes to their pre-impact water quality conditions. There is concern, however, that mitigation efforts may be being applied to naturally eutrophic lakes, for which restoration is unnecessary and probably futile. In such cases, more realistic targets should be set.
Reavie, Euan D, Smol, John P. 1998. Paleolimnological Assessment of Tchesinkut, Takysie and Francois Lakes, British Columbia (February 1998). BC Ministry of Environment
Keywords: Paleolimnological Assessment, Tchesinkut Lake, Takysie Lake, Francois Lakes
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