Influence of Limited Water Flow in a Pipeline on the Nutrients Budget in a Lake Restored by Hypolimnetic Withdrawal Method

In 1956, planners in Poland acted to begin restoration of Lake Kortowo via the withdrawal of nutrient-rich hypolimnion water directly to the outflow through a pipeline system. Data are reported from an analysis of the nutrient budget in the lake after limitation of the water flow in this pipeline fr...

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Bibliographic Details
Published in:Polish journal of environmental studies 2002-01, Vol.11 (6), p.631-631
Main Author: Dunalska, J
Format: Article
Language:English
Online Access:Get full text
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Summary:In 1956, planners in Poland acted to begin restoration of Lake Kortowo via the withdrawal of nutrient-rich hypolimnion water directly to the outflow through a pipeline system. Data are reported from an analysis of the nutrient budget in the lake after limitation of the water flow in this pipeline from 0.25 m super(3)/s to 0.05 m super(3)/s. Information detailing the nutrient budget for the period of pipeline operation was compared to the theoretical budget with a surface outflow only. Evidence indicated that the maximum reduction of nutrients was observed in the second half of the summer stagnation when the pipeline was operating. Results indicated that negative phosphorus accumulation during the summer months was the result of a balanced removal of hypolimnion water during the entire summer stagnation.
ISSN:1230-1485