Research carried out in two hydrological years differing in the pattern of meteorological conditions aimed to investigate changes in the groundwater table level and the water reserves in a 1-metre layer of soil within a small river catchment with varied forest site types. It was found that irrespective of the forest site type the two parameters exhibited a similar cyclical pattern and their values depended mainly on the meteorological conditions, particularly on the amount and distribution of precipitation. It was confirmed that the low level of grounwater table in the vegetation season does not affect significantly the water reserves of the surface layer of soil.

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