This paper describes the conditions of paleaogeography and paleaoclimate in triassic, and the development, accumulational and residual features of interior lake basins in late triassic epoch, besides these it also discusses the developed degree of tropical karst in middle and late triassic epoches in Guilin.

Sequence type and lithologic trap distribution in lacustrine basin of East China;

Discuss on the representative enrichment mechanism of groundwater in the front of mountain around Inland Basin;

Study on the distribution and balance of the salt in the inland basin;

Vertical water cycle and its ecological effect in inland basins, Northwest China;

The physical geography environment,the forming and distributing of the water resource in Ali area of Tibet are analyzed,basing on the difference of the groundwater resource forming environment,the water circulation system can be divided into alluvium and diluvium groundwater of rivervale in south and flows-in lake basin groundwater in north.