ENVIRONMENT EVOLUTION AND PALEOCLIMATE OF DAIHAI LAKE, INNER MONGOLIA SINCE THE LAST GLACIATION
内蒙古岱海末次冰期以来的环境变迁与古气候

Daihai Lake in Inner Mongolia is a closed lake in semiarid area. Through the analyses of sporo-pollen, ostracoda and autogenous minerals in the sediments from cores and terraces, combined with dating data, the evolutionary process and features of the lake environment have been reconstructed since the last glaciation, the beginning and ending time of Holocene optimum period and the subperiodicity of the lake level fluctuation are discussed. Based on the grain size and the element content in deposits from gravity cores, the authors have probed the short periodicity of climate change in this historical period, indicating that it is possible to predict the trend of environmental evolution.