Base on detailed sedimentological, palaeontological, geochemical and chronological studies of lacustrine sediment and speleothem, to generate precise and high-resolution time series of climate change and environment variation.

According to the lithology, geological, physical, chemical and biological process and mechanism of lacustrine sediment and speleothem, to reveal the changing process and reasons of climate change and environment variation, and to explore the dynamic links with global change.