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    Author(s): A. M. Zobel; R. A. Reid; K. Cybulski; K. Glowniak; O. Loucks; J. E. Nighswander
    Date: 2000
    Source: In: McManus, Katherine A.; Shields, Kathleen S.; Souto, Dennis R., eds. Proceedings: Symposium on sustainable management of hemlock ecosystems in eastern North America. Gen. Tech. Rep. NE-267. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 226-229.
    Publication Series: General Technical Report (GTR)
    Station: Northeastern Research Station
    PDF: View PDF  (421.42 KB)

    Description

    Since 1969 Trent University researchers have been investigating the chemistry and biotic part of a small undisturbed lake near Minden, Ontario. Clear Lake is surrounded by old growth hemlock stands, some 400 years old. The research was later joined by personnel of the Ontario Ministry of the Environment, and the educational program in the Frost Centre. We are going to discuss changes in pH, phosphorus content and the reaction of aquatic macrophytes, Eriocaulon and Lobelia dortmana, to simulated acid rain conditions and increased ultraviolet radiation.

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Zobel, A. M.; Reid, R. A.; Cybulski, K.; Glowniak, K.; Loucks, O.; Nighswander, J. E. 2000. Management of an undisturbed water ecosystem containing old growth hemlock, as a model system of Clear Lake Reserve, Ontario. In: McManus, Katherine A.; Shields, Kathleen S.; Souto, Dennis R., eds. Proceedings: Symposium on sustainable management of hemlock ecosystems in eastern North America. Gen. Tech. Rep. NE-267. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 226-229.

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