Abstract: In this paper,we give a general introduction to our recent studies on the gravity field of the Qinghai-Xizang region. Our research works are composed of the three main parts: based on the isostasy principle and the thermal colomn model, we cornputated the undulation of the Moho in terface and the density anomaly of the upper mantle,and assessed the rise of the Himalaya mountain and the corresponding mechanism. Accoording to the residual geoid distribution and the ideal heating convection model, we discussed the force source of the movements of Qinghai-Xizang region and central China.Based on the repeated gravity observations, it is able to detect the rise of the Qinghai-Xizang plateau and the activity of the fault.

Key words: Gravity field, Crustal movement, Qinghai-Xizang plateau

摘要： 基于地壳均衡及圆柱体受热模型原理,求出莫氏面起伏及上地幔异常密度分布,并推测了喜马拉雅的相对隆起及其动力机制；由残余大地水准面的分布及底层加温的热对流假设,探讨了青藏地区和我国中部地壳运动的力源问题；此外阐述了根据多期重复重力测量,可以检测出高原的隆起和断层活动。

关键词: 重力场, 地壳运动, 青藏高原