Lake Iseo is undergoing a progressive deterioration in water quality, mainly due to eutrophication. This paper, based on measurements performed on the main tributaries and the outflow, considers the phosphorus, nitrogen and silica budget of the lake, related to its trophic evolution. The chief conclusion of the study is that the significant reduction in P load over the last few years following the construction of treatment plants is not enough to reverse the trend to eutrophication and the progressive deterioration in water quality. An attempt to use the OECD statistical approach to quantify the relationships between P load and the trophic condition of the lake yielded poor results, because the characteristics of the lake did not fulfil the hypothesis of the model. The reduced tendency to a complete overturn of the water is one of the most important aspects, leading to hypolimnion anoxia and P release from the sediments.

Garibaldi, L., Mezzanotte, V., Brizzio, M., Rogora, M., Mosello, R. (1999). The trophic evolution of Lake Iseo as related to its holomixis. JOURNAL OF LIMNOLOGY, 58(1), 10-19.

The trophic evolution of Lake Iseo as related to its holomixis

MEZZANOTTE, VALERIA FEDERICA MARIA;
1999

Abstract

Lake Iseo is undergoing a progressive deterioration in water quality, mainly due to eutrophication. This paper, based on measurements performed on the main tributaries and the outflow, considers the phosphorus, nitrogen and silica budget of the lake, related to its trophic evolution. The chief conclusion of the study is that the significant reduction in P load over the last few years following the construction of treatment plants is not enough to reverse the trend to eutrophication and the progressive deterioration in water quality. An attempt to use the OECD statistical approach to quantify the relationships between P load and the trophic condition of the lake yielded poor results, because the characteristics of the lake did not fulfil the hypothesis of the model. The reduced tendency to a complete overturn of the water is one of the most important aspects, leading to hypolimnion anoxia and P release from the sediments.
Articolo in rivista - Articolo scientifico
Iseo, water chemistry, trophic level, nutrient budget
English
10
19
Garibaldi, L., Mezzanotte, V., Brizzio, M., Rogora, M., Mosello, R. (1999). The trophic evolution of Lake Iseo as related to its holomixis. JOURNAL OF LIMNOLOGY, 58(1), 10-19.
Garibaldi, L; Mezzanotte, V; Brizzio, M; Rogora, M; Mosello, R
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/4729
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