Abstract:

The uplift of the Tibetan Plateau is one of the most amazing geological events in the earth’s crust evolution history, and holds an important status in the global environment. Nowadays, the global environmental change represented by the global warming and its potential impact on the ecosystem and human society have drawn great attention from scientists, governments and society. The global climate change has become the focus of the people’s attention. According to the mechanism of diminishing temperature of the Qinghai-Tibet Plateau and its environmental characteristics analysis，the Qinghai-Tibet Plateau uplift should not have brought in the reduction of the plateau surface temperature. With the surface of the plateau rising, plateau surface had been shaping strong fluctuation environment with the character of high diurnal temperature range. This character of the plateau surface will rapidly release the energy of solar radiation absorbed by the surface of the plateau back into the space, rather than participate in the earth climate system cycle. At the situation of solar energy input remains unchanged, the uplift of the plateau will have directly cause the global climate system cooling. The character of the earth’s atmosphere with the altitude exponential decay had made the cooling effect very strong at the early stage of the uplift. Based on the all mentioned above, the authors have preliminarily discussed the prospect of vegetation, glaciers and other special environmental characteristics with the uplift of the plateau. This has provided a new method for further study to disclose the relationship between the uplift of the Tibetan Plateau and the globe environmental variation.

Key words: Qinghai-Tibet Plateau, temperature effect, climate change, plateau uplift