Horizontal distribution of organic carbon content in the upper layer of the bottom deposit in Lake Balaton

Frankó, András and Ponyi, Jenő (1975) Horizontal distribution of organic carbon content in the upper layer of the bottom deposit in Lake Balaton. A Magyar Tudományos Akadémia Tihanyi Biológiai Kutatóintézetének évkönyve, 42. pp. 159-165. ISSN 0365-3005

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Abstract

Having the organic carbon content of 168 mud-samples taken at 24 transversal sections in Lake Balaton analysed with Walkley’s and Black’s method, th e authors conclude as follows: 1. Compared to other European lakes the organic carbon content of the top 5 cm thick sediment layer of th e lake (varying between 0.27 an d 2.33 per cent) is very low. 2. In the two basins of the south-western region with most of the waters inflowing here, the organic carbon content is relatively higher (over 1.9 per cent). 3. Apart from the central basin the organic carbon is distributed in spots. This phenomenon is due to the typical hydrodynamic conditions of the lake and partly to the effedt of River Zala (Keszthely Bay). 4. The mean organic carbon content of the sections decreases from the south-west end of the lake (section I) to the beginning of the north-east basin (section XVIII) with a slow increase from here. Probably, owing to the currents the mean organic carbon content decreases between the basins.

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