关键词: 巴丹吉林沙漠, 演化, 晚更新世, 风成砂

Abstract: Badain Jaran desert,lying in the transitional region between Western China's deserts and Eastern China's deserts, has undergone a series of changes from the occurrence of shifting sand,extension, fixation to decline since late Pleistocene, The analytical results of eolian sand strata demonstrate that the East Asian summer monsoon bought in relatively plentiful rainfall to this area in the interglacial periods, on the other hand, this area was very dry in the glacial periods. The uplift of Qinghai-Xizang Plateau reduces humidity and makes the temperature lower in the area.

Key words: Badain Jaram desert, Evolution, Lete Pleistocene, Eolian sand