东疆北部地区小冰期环境特征的湖相沉积记录

The Lacustrine sediment records of the Environmental changes since the Little Ice Age(LIA) in the northern parts of East xinjiang

本文根据新疆东疆北部巴里坤湖湖相沉积的孢粉及地球化学元素含量分析，运用因子分析法处理数据，恢复了巴里坤地区近500年来的环境演变序列．广泛的区域性对比表明，所获结果具较高可信度，故本文不但获得了在新疆地区由湖相沉积所揭示的小冰期以来的环境演变信息，另一方面丰富了本地区短时代环境演变研究的方法和手段．

Applied the Factor Analysis Method to deal with the spore-pollen and chemical element content data.which obtained from the lacustrine sediment in Balikun Lake,northern parts of east Xinjiang .this paper hasreconstructed the sequence of environmental changes since LIA in Balikun district. The Extensive regionalcomparison show that the results achived in this paper are reliable,so this paper has not only obtained the information of environmental changes since LIA,in Xinjiang from the lacustrine sediment,on the other hand,also reclaimed to some extent degree the approaches to deal with the study of environmental changes in aridarea.