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Physico‐chemical Limnology of Lake Naini Tal, Kumaun, Himalaya (U. P.), India

Physico‐chemical Limnology of Lake Naini Tal, Kumaun, Himalaya (U. P.), India The monomictic lake at a height of 1937 m, having an area of 48 ha, a mean depth of 16 m and a maximum depth of 27 m, is subjected to such an intensive use in its drainage area that the lake became eutrophicated. The spatial‐temporal distribution of important physico‐chemical criteria is represented for a period of two years. The depth of visibility varies between 0.4 m (March) and 2 m (June). The thermal stratification keeps up from March to November; therefore in the deep water zone a typical oxygen depletion and an enrichment of PO4P (26 μg/l) and of Ninerg (940 μg/l) occur. The pH‐value lies in the alkaline range and shows a significantly positive correlation with primary production and temperature and a negative correlation with the carbonate content. Also the oxygen concentration is positively correlated with the primary production and temperature. During stagnation, the sediment/water contact zone is free of oxygen for ca. 70 % of the area. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta hydrochimica et hydrobiologica Wiley

Physico‐chemical Limnology of Lake Naini Tal, Kumaun, Himalaya (U. P.), India

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References (14)

Publisher
Wiley
Copyright
Copyright © 1985 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0323-4320
eISSN
1521-401X
DOI
10.1002/aheh.19850130310
Publisher site
See Article on Publisher Site

Abstract

The monomictic lake at a height of 1937 m, having an area of 48 ha, a mean depth of 16 m and a maximum depth of 27 m, is subjected to such an intensive use in its drainage area that the lake became eutrophicated. The spatial‐temporal distribution of important physico‐chemical criteria is represented for a period of two years. The depth of visibility varies between 0.4 m (March) and 2 m (June). The thermal stratification keeps up from March to November; therefore in the deep water zone a typical oxygen depletion and an enrichment of PO4P (26 μg/l) and of Ninerg (940 μg/l) occur. The pH‐value lies in the alkaline range and shows a significantly positive correlation with primary production and temperature and a negative correlation with the carbonate content. Also the oxygen concentration is positively correlated with the primary production and temperature. During stagnation, the sediment/water contact zone is free of oxygen for ca. 70 % of the area.

Journal

Acta hydrochimica et hydrobiologicaWiley

Published: Jan 1, 1985

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