Tóth, T., and G. Szendrei. 2006. Relationship between salt efflorescences and environmental conditions with special emphasis on edaphological conditions. Topographia Mineralogica Hungariae. IX. 79-90. We summarise the relationship between the climatic and edaphologic factors and the salt efflorescences based on our soil profiles studied and the categories of the „AGROTOPO" database corresponding to the visited sites of field survey. The most important factor of the occurrence of salt efflorescences on soil surface is the salt accumulation close to the soil surface. The prediction of salt efflorescences in complex elevational patterns is facilitated by the application of our conceptional model. Compared to the earlier reports, we found salt efflorescences not only on Solonchak soils, but also on a somewhat leached soil type (Crusty) Solonetzes also. In those cases where soil profile was opened, the depth to groundwater varied between 80 and 250 cm. There was a correlation between the dominant anion of the salt efflorescences and the depth of groundwater: paralel to increasing maximum solubility the average depth of groundwater was increasing. Data support the hypothesis that on more sandy areas the chances of the precipitation of carbonate minerals increase. In the more clayey areas the movement of water is much slower and there is small chance for the low soluble alkaline solutes, which further decrease water conductivity, to rise close to the surface. We evaluated the categories of AGROTOPO database at 25 sites where salt efflorescences were found. At these sites further information was provided by the field bulk electrical conductivity measurements (on average ECa was 4.8 dS/cm) and vegetaton characterizations (most of the salt efflorescences occurred in Camphorosmetum annuae and Puccinellietum limosae plant associations).