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Article: Biogenic calcite-phosphorus precipitation as a negative feedback to lake eutrophication.(Report)
- Article from:
- Canadian Journal of Fisheries and Aquatic Sciences
- Article date:
- February 1, 2009
- Author:
CopyrightCOPYRIGHT 2009 NRC Research Press. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Introduction
Groundwater-fed lakes in regions where carbonate minerals occur in the rocks and soils are rich in dissolved [Ca.sup.2+] and HC[O.sub.3] and commonly precipitate calcium carbonate in the mineral form of calcite (CaC[O.sub.3]). Such lakes are particularly common in glaciated regions of North America and Europe. In temperate climates, calcite precipitation increases greatly during the summer as a result of both seasonal warming, which reduces the solubility of calcite, and enhanced photosynthetic uptake of carbon dioxide (C[O.sub.2]) by algae and vascular plants (Kelts and Hsii 1978). Algal and plant growth in such lakes tends to be strongly limited by ...