摘要
Both natural and artificial factors bring effects to lake water resources in the arid zone of Xinjiang. The considerable and frequent shrinkage and expansion of lakes may cause a series of regional environmental problems. However, the influence intensity of the factors on lake variations changes with time. The lake variations were mainly controlled by climatic factors before human society. During the period between 6.5 and 8.0 ka B.P., the Ebinur Lake had reached the highest water level in a time span of almost ten thousand years. The average precipitation of the Ebinur drainage area was about 22%, higher than that of the present, and the lakes in other regions were also remained under a high water level. Around the time of Early Middle Ages and the Little Ice Age, humid climate had lasted for a hundred years. Some lakes,such as the Ebinur Lake, Lop Nur Lake, and Bosten Lake,had relative high water level.