Tóth T., L. Kuti and U. Fügedi 2003. Monthly studies at Zab-szék saline lake. 
Temporal changes of lake water, groundwater, soil and vegetation. (Hung.) 
Természetvédelmi Közlemények. 10:191-206

During three years every month repeated observations were carried out for 
following thechanges in soil properties in the Puccinellia limosa grassland at
Zab-szék saline lake. Parallelly the water level of lake and a nearby well, as
well as the chemical properties of the waters were also studied.Due to a rise in
the lake level, soil and groundwater sampling was discontinued during 
18 months.Puccinellia limosa shoots appeared only half year after the shrinking
of lake surface beyondthe studied 4 1x1 m quadrates. Rise of lake water level 
showed close correlation with the amount ofprecipitation, the drop of lake water 
level showed close correlation with evaporation, but the groundwaterlevel showed 
close correlation with the amount of the precipitation during the previous 
month.The three studied waters showed the dominance of sodium and bicarbonate 
ions, and in thecollected salt efflorescences sodium and carbonate were 
dominant. The X-ray diffractometry of thesalt efflorescences showed the presence 
of halite, trona, thenardite, thermonatrite and gypsum. The salt concentration 
of groundwater showed close correlation with the meteorological parameters of 
the given month, buth the salinity of the 0-70 cm soil layer showed close 
correlation with meteorological parameters of the previous month. The soil 
moisture content was determined by the monthly temperature, potential 
evaporation and the level of groundwater.