According to our research in the southern Tibet, based on the summary and analysis of researching results domestics and overseas, this thesis systematically study the problem of crust deformation of south Tibetan Plateau with geology tectonic, deformation model, GPS data process and forward and inversion of crust deformation.

In-situ cosmogenic radionuclide 10Be was used to estimate the erosion rate in the southeastern Tibetan Plateau,where the precipitation is much higher than that in the central Tibetan Plateau.

Cenozoic molasse at the south edge of Qinghai-Tibetan Plateau was mostly deposited in the zones of Lesser-Himalaya and Sub-Himalaya, others in Alluvial Plain zone.

By using high resolution 3″DEM data,precipitation data from May to October of 94 weather stations in the east of Qinghai-Tibet Plateau,based on multivariable stepwise regression method,the estimating model of monthly precipitation are done combined with terrain factors.