摘要：The paper presents the results of a research into the geoecosystems of polar oases located on King George Island in the South Shetlands in the Mari- time Antarctic. The recession of glaciers brings about an expansion of ice-free areas, landform meta- morphoses, changes in land cover, redeposition of sedimentary covers, changes in the water cycle and mineral circulation, and finally a transformation of landscapes in the ice drainage basin of Admiralty Bay. The increase in ice-free areas observed in the 20th century is variable but quite rapid (Zwoli¨½ski 2007).
