Abstract:

In situ observation of dynamic changes in free water contents of soils at two sites (Eutric gelic Regosol and Dystri gelic Cambisol) was carried out in the ice free area of the Fildes Peninsula, King George Island, the maritime Antarctic zone,by use of the specially developed moisture sensing probes as sensors. The variation of freeze thaw and moisture status of the soils, caused by site differences, was demonstrated. In addition, the possible differences of freeze thaw cycle and moisture status of the soils between two years, resulting from variation of climatic factors etc., were discussed. Finally, several general conclusions on moisture regimes and dynamic changes in free water contents of soils in the studied area were tentatively drawn. [WT5HZ]