Mapping vegetational and salinization phenomena to evaluate the extent of Lake Kelemenszék, Hungary

Czauner, Brigitta and Mádl-Szőnyi, Judit and Erőss, Anita and Vojnits, Anna (2008) Mapping vegetational and salinization phenomena to evaluate the extent of Lake Kelemenszék, Hungary. Central European Geology, 51 (3). pp. 231-240. ISSN 1788-2281

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Abstract

Abstract Lake Kelemenszék (Danube-Tisza Interfluve, Hungary) is a shallow saline lake which is fed, beside by precipitation, partly by meteoric and also by rising saline groundwater. The aim of the present study was to map the seasonally variable extent of the lake. The developed method is based on mapping of vegetational and soil salinization phenomena around the lake caused by discharging groundwater. It was found that an outer salty berm determines the maximum extent of the lake. Therefore, from the mapped maximum possible extent of the lake, from the lake-bed morphology and from the recorded lake water level, the actual lake extent and water amount can be deduced. Military and cadastral maps from the past 220 years and a satellite image were used to characterize the historical time variability of the lake extent. Additionally, an actual groundwater level map was compiled based on shallow well data. RMT sounding was carried out to evaluate the TDS content of the saturated near-surface sediments to examine the interaction between the lake and the canals around it.

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