中文摘要：

本文利用全球海气耦合模式，设计并进行了7组高原不同隆升情景的数值试验，集中研究了青藏高原隆升在欧亚内陆干旱演化中的作用。在无高原试验中，亚洲副热带干旱区为东西对称的纬向型分布；随着高原高度的增加，一方面有助于东亚季风降水的向北扩展，另一方面导致欧亚大陆西风强度显著减弱，使得亚洲副热带气候纬向不对称性增加，同时欧亚中纬度干旱面积增加。其原因是，高原隆升导致近地层气温下降，进而大气含水量减小；同时，地形的阻挡效应导致纬向和经向的环流减弱，这两个因素综合导致内陆地区水汽输送的减弱是中亚干旱区范围增加的主要动力学机制。与以往大气模式试验一致，海气耦合试验支持了高原隆升是亚洲内陆水汽输送和降水减少，以及内陆干旱化加剧的重要原因的科学认识。

英文摘要：

The uplift of the Tibetan Plateau （TP） is one of the important tectonic events during the Cenozoic, and has important effects on the evolution of the regional and even global climate. Geological evidence indicates that, the main part of the TP, including the central-southern TP and Himalaya, probably uplift firstly. By comparison, the marginal area of the TP, including the eastern TP, the western TP and the northern TP, uplift later. Thus, there is difference between the uplifting time of the main part and marginal area of the TP. However, the difference of the impact between the uplifts of the main part and marginal area of the Tibetan Plateau on the Asian monsoon climate is still unclear. Through a series of numerical simulations conducted with the Community Atmosphere Model（CAM4）developed at the National Center for Atmospheric Research, the model results indicate that, the uplift of the main part of the TP, can intensify aridity throughout inland Asia, increase the precipitation in East Asia but decrease the precipitation in South Asia. Even so, the monsoon area is still limited in the east of the TP. In contrast, the uplift of the marginal area of the TP, can strength the seasonality in winds and precipitation and further enlarge the monsoon area in the east of the TP, and increase the precipitation in South Asia. Our model results indicate that, the uplift of the marginal area of the TP is also very important for the evolution of Asian climate, and the development of Asian monsoon and inland aridity influenced by the uplift of the TP, show asynchronous characteristic.